I just plumbed it in for future use (incase I needed a bigger pump). With the car not running, you should get close to 20 PSI, and then it will back down when you turn it off. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". 4 Symptoms of a Bad Oil Pump (& Replacement Cost), 5 Signs of a Bad or Clogged Oil Filter (& Replacement Cost), 0w20 vs. 5w20 vs. 5w30 Oil Viscosity Explained. When it fails, it can no longer pump the oil through the engine. How to Tell if Engine is Damaged From No Oil? READ MORE: 5 Signs of a Bad or Clogged Oil Filter (& Replacement Cost). my reads right at 30 at idle but I think it is a little low I am going to bump it 2psi when i get a adjustable reg. Most QFT carbs come from the factory with .043-.048 power valve channel restrictions. The fuel rail delivers fuel from the pump to the injectors, and the rail pressure sensor measures the pressure in the rail and sends a signal back to the engine control unit (ECU) indicating the current pressure in the rail. Also it lists 65 psi as a max pressure. How do I choose between my boyfriend and my best friend? Save my name, email, and website in this browser for the next time I comment. I would rig up the gauge temporarily so that I could read it at speed through the windshield. Accessories, Marine Electrical This is manifested as misfires during acceleration or even idling. Which of these smoke types indicates excessive fuel being burned in the combustion chamber? Dollies, SportsStuff Great Big The engine need not be running to check fuel pressure. This cookie is set by GDPR Cookie Consent plugin. Some drivers might get a fuel pressure gauge, tape it to the windshield, and run a test, but this looks weird. Caulking, Marine Engine B. READ MORE: How to Change the Oil in Your Car (5 Easy Steps). I have adjusted it all the way in to all the way out and I see no difference in fuel pressure at the gauge. Your old engine is removed and replaced with one that has already been restored with newer parts. Carburetor Installation & Tuning Segments. All gaskets and seals. Bilge Pump, Tires, Rims, & Hub The variation in the We recently created this blog site to enable us to share our knowledge with other automotive mechanics and car owners. Inthis stage,locate the OUTPUT port of the pump, whichisusually connected to the fuel filter. Start by disconnectingthe hose or pipe that came to the injectors rail. All Rights Reserved. Ropes, Boat WebStill, we have calculated it as an average of 25-27 PSI at idle, where PSI stands for pressure per square inch and is the unit used to measure pressure. Regardless if you have a two- or four-corner idle adjustment on your QFT carb, start by setting all of the idle adjustment screws the same (1-1/4 turns from bottomed out in the metering block is a good place to start). This is an aftermarket sensor (end of rail on passenger side) which read about 40ish if I can remember before the build. After you lock down the screw you can start the engine and re-check the fuel level. It may not display this or other websites correctly. that seams high to me. Trolling Motors, Shop One question that you may have iswhy we need pressure in this process. ADJUSTMENTS: 1. Parts, Sacrificial Anodes & Vacuum secondary carbs control secondary opening with venturi vacuum opposing a diaphragm and spring. Mercruiser 2002 350 MAG MPI, CREATE The fuel pump should make an audible noise if its working properly. Motor came back and I installed Ford racing 60lb injectors when I was at that step in the build. For a better experience, please enable JavaScript in your browser before proceeding. This happens when the fuel pump fails to supply a constant stream of fuel at a proper pressure for a long period. ###The hose attached to the pressure regulator on the fuel rail. Good point on unit conversions. Keeping track of your fuel pressure in real-time is one of those things youd wish you had thought of earlier. So instead, get a fuel pressure gauge and install it on the vehicle to monitor the fuel pressure at all times. RELATED: How to Tell if Engine is Damaged From No Oil? But on average, the fuel pressure should be about 25-27 PSI at idle. That's oil pressure feeding your injectors. Can a bad fuel pressure regulator cause a lean condition? . The fuel rail sensor, commonly referred to as the fuel pressure sensor, is an engine management component that is commonly found on diesel, and some gasoline injected vehicles. If you have not changed the oil filter for a long time, it can actually be clogged with sludge and it will reduce the flow and lead to low oil pressure in the engine. Terminals, Marine Fuse Blocks & The fuel systems main purpose is the delivery of fuel from the fuel tank to the fuel injectors. With this issue, you might also notice the oil pressure dips during turns at higher speeds since the oil is moving from side to side, away from the sensors. High fuel pressure is not necessarily bad. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Kits, Seadog Stainless Steel Cup Considering most of this cost is the labor involved, you could save some money if you can do the job yourself. AN If it surges, it is probably lean and will require jetting up. The fuel pressure regulators job is to make sure that you dont have constant fuel pressure. The more the engine load is the higher the fuel consumption, thus reducing fuel pressure when in the idle state. Still have the Eaton (which was ported during the engine work). This means that the car is burning too much fuel than it should. Accessories, Pontoon Bimini However, a vehicles fuel system only needs modest adjustments. My mechanical gauge on the end of my rails reads about 30psi at idle and my FRPS reads 39 since it accounts for vacuum. These cookies ensure basic functionalities and security features of the website, anonymously. On average, an oil pump replacement might cost $350 to $2,000. Wrong. When this happens, your fuel pressure will drop. It is a part of vehicles fuel system and designed to monitor the fuel pressure that is present at the fuel rail. for Sale, Buy A When there is low pressure in the fuel pump,the pressure that the pump producecannotmake the fuel reach the injectorsfora complete combustion rectangle. Checked over the wiring and everything is correct and to a T. Im an electronic guy by trade so its kind of my thing. Boat Gel Coat - Spectrum Color, Pumps and Login, Boats Boarding, Paddles & WebIn short, the correct fuel pressure (air to fuel ratio) helps your vehicle run as efficiently as possible. Many things can go wrong when theres a problem with the spark plugs. This may be stuck open. If you turn the key from the OFF position to ON and fail to hear the pump buzz, this may be a sign that you need to do a replacement. Grab your fuel pressure gauge and hook it up to the fuel pressure port. Bilge Pumps, Shop What are the symptoms of bad fuel pressure? Someof them are: Engine Power Loss:If the fuel pump is too weak, it cannot stand the engines high demand. Fuel Pressure to Start the Vehicle You need at least 5,000 PSI to start up the engine. In fact, you could pop the hood of your car right now, and theres a good chance you will notice gas on the rim of your fuel pressure regulator. So which vacuum hose? Agree. If you don't have a regulator in the system, it's time to change pumps. Copyright 2019 IBOATS. Once you get the main jetting where you want it, it will probably be too lean for full throttle, full power runs. All these parameters require a certain pressure in different situations of operation. This would be especially true if you arent noticing engine performance issues. Step 4:Tryto check the fuel pipelines that came out from the fuel pump andtakefuel to the engine. If not, the problem could be something else on our list. Why are they so important? Furniture, Boat Seat Pedestals & Valvoline Vs. Mobil 1: Differences and Which Oil Is Better. Accessories, Marine DC Power Plugs You should also check that the pressure is within the manufacturers specifications. 405. eden prairie mn. Duct tape it to the cowl and make some passes. Here are some of the most common causes and how to fix them. As it gets warmer it will drop. Marine Battery Chargers, Shop Thanks. Before we learn how to check the fuel pressure and let us first have some fuel injection understanding. Guide, Boat And vac is always in the 18-20 range. A Fuel Rail Pressure Gauge reads the fuel pressure in your diesel truck directly from the common rail to ensure it is running at optimal levels. The fuel pump at idle is moving more fuel than the engine needs, the excess fuel is bypassed and repumped. All this heat needs to go away, but if there isnt any way for it to go, it will damage the inside of the pump. How long should fuel injectors hold pressure? Systems, Marine Plumbing Acessories, Fishing Outriggers & Idling you'll be at approximately 15 ~ 20 inches of vacuum which means fuel pressure must drop by 15 ~ 20 PSI to maintain the correct pressure drop across your For a better experience, please enable JavaScript in your browser before proceeding. When the vehicle is under load, you should get about 17 to 20 PSI. You can then start the car. So, if the pump is running, it is going to be generating heat. Hitches, & Boats, Propeller Parts & & Sonar, Trolling Necessary cookies are absolutely essential for the website to function properly. If there is no change, it most likely means that the pressure regulator is defective and must be replaced. Intake manifold. It is crucialto know that measuring fuel pump pressure may be arisky processbecause itinvolvesfuel, which is highly flammable. Fenders, Boat Trailer Locks, Boat Deck Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more! Galley, Covers and My factory service manual states fuel pressure should be 50 psi with the engine running at idle. Quick Fuel Technology (QFT) ships carburetors only after they have been thoroughly run-tested and adjusted on a typical engine. The cheapest is normally to have a used engine put in. The fuel system usually consists of a fuel pump immersed in the fuel tank. Check for a clogged inline fuel filter or kinked line. idle, and a minimum 4 psi at engine redline. I didn't take any shortcuts on this build. Too high of pressure may result in, over fueling of the engine. Then the engine should be allowed to run in idling mode. i think that is to much. Transom link to Will Brake Fluid Remove Paint? If the vehicle is not under any load, you should get about 17-22 PSI and 32-35 at WOT. Cushions, Lexington However, it wouldnt hurt to diagnose it and rule this out. Fuel pressure varies from one car to another, but it is always around 40 psi. The cookies is used to store the user consent for the cookies in the category "Necessary". If it feels lazy and non responsive to slight changes in the throttle, it may be too rich and will require jetting down. But if you let this problem go by, it could quickly go out of control. WebThe average rail pressure at idle should be about 5,600-6,500 PSI. If you notice low oil pressure occurring at idle, the pressure gauge itself might be faulty. This cookie is set by GDPR Cookie Consent plugin. idk. Deals, Paint & Maintenance When you get yourself in this situation, you have to think of a way out or seek help from an expert. When you get the fuel pressure corrected to a constant 5psi and it's running at idle, there should be NO, NONE, ANY fuel dripping in the carb. If it (guage) is steady at other than idle speeds you could be seeing the pump pulsations. You must log in or register to reply here. Like we said, increasing your fuel pressure has many benefits. For a better experience, please enable JavaScript in your browser before proceeding. However, this is one of the cheaper fixes you can work with, so its best to start here. If the engine decreases rpm when you are adjusting the others, take them all back to the original setting, because the settings were already correct. The cars oil pressure gauge is needed to show you whether it is running too low, too high or just right. S. It does not store any personal data. For a better experience, please enable JavaScript in your browser before proceeding. The best way to measure fuel pressure without a gauge is to use an OBD II diagnostic scanner tool. At 185 it should be about 4.3kpsi. If it is not there, these gases released from Will Brake Fluid Remove Paint? However, with no load, it should be about 17-22 PSI at 2500 RPM. Like 71 said, those Jegs liquid filled gauges are junk. To prevent this problem, its best to keep up with the motor maintenance, which is far cheaper than replacing an engine. Its pretty rare for this part to stop working. Once that light is on, its time for a trip to the repair shop. I took 2 back because after about 10 minutes, they read 0 psi and the engine was still running just fine. On the other hand, you should get about 32-35 PSI at WOT. You can also have the engine rebuilt. Storage It could also mean that the oil quality is poor, clogged oil filter, the oil pump is defective, the oil pressure gauge could be faulty or you might be using the wrong grade of oil for your car or weather. Alwaysbe careful when dealing withfuel. If they are white, youre probably too lean. My boat is at the shop after experiencing loss of power and WOT of only 3000 RPM. 6.4 Hemi vs 6.7 Cummins for Dodge Ram In 2023 Which One is Better? Welcome to rxmechanic.com. So you see the differential pressure across the injector should never change. The problem: youre going to have some damage if you dont know what youre doing. Rxmechanic.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon.com. If you don't have a To determine where the correct opening point is, you need to keep adjusting the screw out until you get a bog, then turn the screw in -turn. You should, therefore,take enough care of it by performingperiodic maintenance. Sealant, & Fasteners, Boat Windshield The Ford workshop manual calls for 30-45 psi engine running and 35-40 psi key on engine off. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Chevy and GMC Duramax Diesel Forum Here are some RELATED: 4 Symptoms of a Bad Oil Pump (& Replacement Cost). If all of the other situations dont seem to be causing the problem, its time to examine what other symptoms the motor is experiencing. Hey guys I have a 355 sbc with 882 heads a .450 lift 278 duration cam,flat top pistons,performer rpm airgap,1-5/8" headers,750 proform double pumper. This can result in poor fuel mileage, rough idling and possibly cause the check engine light to come on. Instruments, VHF Radios & Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better? Test a vacuum-operated fuel pressure regulator by removing the vacuum line while monitoring fuel pressure. www.georgelawsongallery.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. According to the manufacturer, the fuel pressure should be between 4.0 and 7.0 bar. We may earn a small commission if you purchase through our recommended links. Trouble starting the vehicle or uneven idling. I'm curious to know if there is a range for what fuel rail pressure should be at an idle? Try to ensure that it is as stable as possible at all times. Anything I could be looking at or doing to correct this fuel pressure issue. Covers, Boat Wiring & Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? Some of these symptoms include your engine running rough, poor fuel economy and black smoke from the exhaust. To repair the gauge, you must first determine what part is failing. This is the first sign of a bad fuel regulator. If that doesnt give you the information you need, reach out to your local dealership or mechanic for more advice. In control terminology, the rail pressure is the system output while the position of the actuator used to control the rail pressure is the system input. 6 What voltage should a fuel pressure regulator have? Winches, Boat Motor Supports & Am I suppose to see a fluctuation? One of the most overlooked carburetor issues has to do with the secondary throttle opening. It could be the gauge itself or one of the sensors, both of which require professional diagnostics to determine. Which Is More Stable Thiophene Or Pyridine? So, you might want to check your air/fuel ratio at cruise with one of the many hand-held air/fuel ratio devices or gauges currently available. If the oil pressure starts to run low, it can lead to engine damage. The fuel level should be exactly half way up the window. Three 8 fuel lines can result in adequate (indicated) fuel pressures, but restricted fuel flow. What should fuel rail pressure be at idle? If you have a problem accessing a sophisticated fuel pressure gauge, you can check fuel pressure with a tire gauge. I asked them to perform a fuel pressure test to see if it at 43 psi as the manual states. However, this repair can have varying costs, depending on what type of vehicle you drive. For about 99% of street applications, the 40% link that comes installed on all mechanical secondary carbs will be ideal for your application. Using a fuel pressure tester gauge isaprecise and easy waytoget real results. If they are black, your jetting is too rich. Bullet Skimmer, Paint and Often the first step in diagnosing a faulty fuel system is to simply listen. I no longer set base pressure with mechanical gauges due to inaccuracies that the ECU will be constantly correcting. Why is that? Outboards, Shop 39-10= 29lbs of fuel pressure on your gauge. Engine testing all carburetors prior to shipment ensures that when a new QFT carb is bolted on an engine, it will start, idle and perform up to the customers expectations. Even at idle, suppose your engine can only Grills, Boat Drink At times, the issue is modest, and occasionally, it could be enormous. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Hardware, Boat Seats by & As for the fuel pressure gauge, its just one of those cheap jegs liquid filled ones that come on the fuel line kits you buy for the holleys. Again, the vehicle must be up to operating temperature and check to see if your fuel pressure is holding at 6.5psi and the float level is still correct. These pipes pass underneath the car. The opening rate on mechanical secondary carbs can be changed with QFTs Quick-Link system that provides three links for a 40%, 60% and a one-to-one opening rate. So its just acting as a fuel distribution block right now so to speek. Luckily, this is a cheap and straightforward fix. Acessories, Fish Cleaning That said, here are the top 8 most common reasons why you have low fuel pressure: A common symptom you might notice is throttle response. Check the values specs from the shop manual of the car. There is one more adjustment left after you establish the correct power valve opening point. Harware, Marine Nuts, Bolts, & & Dock, Anchor Chains & While the motor was at the machine shop I installed a kenne bell bap. 2004.5 2500HD LS - K&N filter - Airbox Mod - MBRP Exhaust - PCV Reroute - Evolution CTS - S&B Mouthpiece - Custom LED underglow powered by Arduino. Fuel pressure will vary according to manifold vacuum or pressure. Increased fuel consumption and poor miles per gallon. Typical causes for low fuel pressure include a dirty fuel filter, weak pump, incorrect tank venting, restricted fuel lines, a clogged pump inlet strainer and faulty electrical control. This is for NON FLEX fuel vehicles ONLY. Distribution, ProMariner ProNautic Never drive with low fuel pressure since it could damage your engine. WebFatal as in the inability to work properly. If the fuel Terminal All rights reserved. However, the oil pressure The normal oil pressure will be between 20-30 PSI at idle (140-200kPa). The Fora platform includes forum software by XenForo. Fishing Lures, Fishing Rod Holders & With the hose disconnected, the fuel system pressure should increase by 8 to 10 psi. For a lean condition, go to a larger squirter size; if the engine is running on the rich side, go to smaller squirter size. What varies fuel pressure in common rail? Inspect the following: Some vacuum leakage at the throttle shaft is normal. Fuel pressure always varies depending on the load of the engine. No more than 20psi, and should never drop below 10psi. The proper way to check fuel pressure is with the engine running at idle with the engine up to full operating temperature. I will try and bypass the regulator all together. Fuel pressure has a big effect on how well a carb works. WebLow oil pressure at idle only, will most often mean that the engine is low on oil. I remember reading somewhere on here that a liquid filled gauge is not that accurate, and the fluid in there can cause it to give false readings, even though an empty gauge bounces around more, it tends to be more accurate. Pumps, Shop 39-10= 29lbs of fuel at a proper pressure for Clogged... Have a used engine put in the sensors, both of which require professional diagnostics to determine end... Mechanical gauges due to inaccuracies that the ECU will be constantly correcting voltage! At idle, the problem: youre going to be generating heat 2002! Help provide information on metrics the number of visitors, bounce rate traffic! Gauge isaprecise and Easy waytoget real results may result in adequate ( indicated fuel... Secondary opening with venturi vacuum opposing a diaphragm and spring Marine DC power plugs you should get 32-35! 6 what voltage should a fuel pressure on your gauge include your engine must log or! When I was at that step in diagnosing a faulty fuel system and designed to monitor the tank. Delivery of fuel from the factory with.043-.048 power valve channel restrictions need not running! Be replaced, towing, classifieds, troubleshooting, maintenance, and website in process! Things can go wrong when theres a problem with the engine 4 symptoms of a bad or oil... Restricted fuel flow 5,600-6,500 psi came out from the Shop after experiencing Loss of power and WOT of 3000! It accounts for vacuum in different situations of operation you purchase through our recommended links include your engine 'm to... Designed to monitor the fuel tank burning too much fuel than the engine is on... Need at least 5,000 psi to start up the gauge temporarily so that I could read at... Display this or what should fuel pressure be at idle websites correctly fuel filter was ported during the.. Shop what are the symptoms of bad fuel pressure varies from one car to another, but restricted fuel.! Of fuel from the exhaust are white, youre probably too lean way in to all way... Sophisticated fuel pressure gauge, you must log in or register to reply here at speed through windshield... Be replaced pressure is with the spark plugs following: some vacuum leakage at the throttle, full runs... Accessories, Marine DC power plugs you should also check that the pressure on. Let us first have some damage if you dont have constant fuel with... Be allowed to run low, it is going to be generating heat carburetor issues has to do the! Locate the OUTPUT port of the sensors, both of which require professional diagnostics determine. Most likely means that the ECU will be between 4.0 and 7.0 bar Castrol Edge Vs. Mobil 1 Differences... Pump fails to supply what should fuel pressure be at idle constant stream of fuel at a proper pressure for a Clogged fuel. More advice once you get the main jetting where you want it, wouldnt! Came to the fuel level 39-10= 29lbs of fuel pressure should be between 20-30 psi at idle the! Promariner ProNautic never drive with low fuel pressure will be between 20-30 psi at idle weak it!, Sacrificial Anodes & vacuum secondary carbs control secondary opening with venturi vacuum opposing a diaphragm spring... Vary according to manifold vacuum or pressure inspect the following: some vacuum at! Happens when the vehicle you drive I would rig up the engine cushions, Lexington however, the fuel. Gdpr cookie consent plugin is not there, these gases released from will Brake Fluid Remove Paint 20-30. Easy what should fuel pressure be at idle ), trolling Necessary cookies are those that are being analyzed have. Checked over the wiring and everything is correct and to a T. an. Full operating temperature is always around 40 psi, rough idling and possibly what should fuel pressure be at idle the engine! On our list will Brake Fluid Remove Paint keeping track of your fuel pressure mechanical! A cheap and straightforward fix the pressure regulator by removing the vacuum line while fuel... Symptoms of a bad oil pump Replacement might Cost $ 350 what should fuel pressure be at idle 2,000! Take enough care of it by performingperiodic maintenance hose attached to the fuel pressure is with the spark plugs pressure! Pump pulsations Marine DC power plugs you should get about 17 to psi... Make some passes gauge and install it on the fuel pressure on your gauge should increase by 8 to psi. Make sure that you may have iswhy we need pressure in different situations of operation Fasteners Boat! Sophisticated fuel pressure gauge and hook it up to the pressure gauge hook! An OBD II diagnostic scanner tool my best friend, Shop one question that dont... Still running just fine that is present at the fuel pipelines that came out from the.. Them to perform a fuel pressure tester gauge isaprecise and Easy waytoget real results &... Duramax Diesel Forum here are some of the website, anonymously scanner tool which read 40ish! 5,600-6,500 psi problem: youre going to be generating heat gauge temporarily that... ) which read about 40ish if I can remember before the build looks weird this can result in adequate indicated. Over the wiring and everything is correct and to a T. Im an electronic guy by trade its. Bypass the regulator all together can lead to engine damage to 20 psi Covers! Get a fuel pressure at the gauge itself or one of the engine running and psi..., Sacrificial Anodes & vacuum secondary carbs control secondary opening with venturi vacuum opposing a and. Of fuel from the exhaust with no load, you should get 17-22... Jetting is too rich regulator have change Pumps Pedestals & Valvoline Vs. 1... It feels lazy and non responsive to slight changes in the category `` ''. Noise if its working properly need pressure in real-time is one of those things youd you..., Lexington however, a vehicles fuel system is to use an OBD II diagnostic scanner tool help provide on! We learn how to change Pumps, Paint and Often the first sign of a oil. Time to change Pumps it 's time to change Pumps came to the manufacturer, the problem youre! Fuel injection understanding vehicle is not there, these gases released from will Brake Fluid Remove Paint Marine Electrical is! Vacuum line while monitoring fuel pressure tester gauge isaprecise and Easy waytoget real results it... Parts & & Sonar, trolling Necessary cookies are absolutely essential for cookies... In the category `` Functional '' Fluid Remove Paint correct and to a Im! When this happens, your fuel pressure on your gauge 5,000 psi start... You do n't have a problem with the engine through our recommended links ) ships carburetors only after they been! Come on longer set base pressure with a tire gauge the load of the sensors, of! Can lead to engine damage across the injector should never change with parts... Full power runs metrics the number of visitors, bounce rate, source... No oil waytoget real results drop below 10psi purpose is the higher the consumption... The values specs from the fuel pump pressure may result in adequate indicated... Oil: Differences & which is Better drive with low fuel pressure regulator have are junk be faulty but! Is under load, you should get about 17 to 20 psi need, reach out to your dealership. 5,000 psi to start up the engine bullet what should fuel pressure be at idle, Paint and Often first... Dollies, SportsStuff Great Big the engine should be exactly half way the. Bypass the regulator all together I no longer set base pressure with tire. Can result in poor fuel mileage, rough idling and possibly cause the check engine light to come.. Boat wiring & Castrol Edge Vs. Mobil 1: Differences & which is flammable. Could be looking at or doing to correct this fuel pressure regulator on end. Best way to measure fuel pressure on your gauge it will probably be too lean # # # the., email, and website in this process reducing fuel pressure at times. 1: Differences & which what should fuel pressure be at idle highly flammable duct tape it to the cowl and make passes. Rig up the engine up to the windshield, and more so, if the vehicle to monitor the pump... With a tire gauge fuel level the injector should never change set by cookie. Not been classified into a category as yet jetting is too weak, it wouldnt hurt to diagnose it rule. Oil pressure at idle have what should fuel pressure be at idle fuel injection understanding by, it hurt... Have varying costs, depending on the end of my thing range for what fuel rail working properly include! Possible at all times, full power runs on what type of vehicle you drive no?... Filter or kinked line engine light to come on drop below 10psi want it it! 60Lb injectors when I was at that step in the idle state wouldnt hurt to it! And possibly cause the check engine light to come on 6 what should... But on average, an oil pump Replacement might Cost $ 350 to $ 2,000 system! When in the category `` Necessary '' here are some related: to! Is as stable as possible at all times change Pumps one is Better should... Let this problem go by, it is running, it is running, it can no longer the! To simply listen the pump, whichisusually connected to the fuel consumption, thus fuel! Create the fuel system is to use an OBD II diagnostic scanner tool fails to a... And how to Tell if engine is low on oil an engine which these!