Sat in drive way moved it around a couple of times and parked it in the garage to do tcase. Also note that 1 mpa megapascal is equal to approximately 145 psi. Priming a diesel engine is the process of filling up the engine with the working fluid, i. Fuel filters free delivery possible on eligible purchases. I have tested the system both with pressureized fuel and vacumm. Common issues and problems we see in the shop with the lb7 6. Scroll down to find information on the priming procedure. Oct 18, 2010 my dic says i was at 10% life of the fuel filter, but if its not priming, i dont think the filter has anything to do with that correct.
Titanium signature series diesel fuel lift pump 95gph gm duramax 6. I know this truck has a pump controll module not a relay. To start, you will need to remove the fuel tank from the vehicle. May 19, 2015 do you own a 2001 2007 gm vehicle equipped with the duramax diesel engine and have a no start condition following fuel filter service. Drove it to the store, came home went to start the truck about an hour later and wont start. The easiest way to prime a diesel engine is to not have air in the fuel line to start with. I was thinking a check valve was not allowing the system to stay primed and thats also kind of what the mechanic thinks. Because of the higher fuel flow these systems have to offer, you may encounter problems with the stock fuel module. My problem is if my truck sits for a day or so it will crank, run for about 30 seconds and stall it will not refire until i prime it with the pump thing. You must first prime the engine with fuel before attempting a successful restart. It has a new fuel filter, new injectors and all new seal washers on the return lines. View and download gmc 2003 duramax owners manual online. Model number 20202 20012010 gm duramax operating and.
See disclaimer below buy fuel primer rebuild kit here aluminum bleeder. Titanium signature series installation manuals fassride. Next morning started my truck and i touched the fuel pedal which i never do it died then i started it. However, if it is a duramax engine, then right on top of the fitting where you mount your diesel filter, there is a primer pump and an air bleed valve. A comprehensive step by step on how to rebuild your fuel filter head on your duramax diesel. A surprisingly high number of diesel engines dont have a priming pump or have one that is worn out or doesnt work at all. Seal rebuild kit and bleeder screw for 20012010 gm duramax fuel filter. It is relatively easy to improve the flow potential on these vehicles. How to start a diesel when it runs out of fuel it still runs. Loss of prime and low fuel rail pressure codes are common symptoms of a bad filter head. Priming the fuel pump assures that fuel pressure is normalized in the fuel system, and reduces the wear and tear on the starter. The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, gm, the gm logo, chevrolet, gmc, the chev.
If you are referring to bleeding the high pressure fuel system after the cp3, then no, you do not have to crack injector lines like on older diesel injection systems. Air often gets into the fuel line when a vehicle runs completely out of gas. Duramax no start fuel filter priming proceedure fuel. I dont see why the pump would fail as it only has 53k miles. Jul 30, 2015 i have a 2001 4 door long bed duramax 100% stock. Did some research and i desided the cp3 pump was bad so i replaced it with a new one.
Titan spare tire auxiliary fuel system for gm, 2001 2010. My deisel pickups have a manual prime system built into the filter housing and you bleed untill you see no air bubbles. How to prime a diesel engine easily without all the hassle. Replace your worn or leaking filter head with a brand new unit. Look in the owners manual for the location of the fuel primer pump and. Any suggestion on what to replace with and should it be a fairly easy job for someone with ok knowledge and common sense. In order for the fuel system to work properly, the fuel your vehicle is equipped with a priming pump lines must be full of fuel and contain no air. Locate and open the bleed valve to the driver side of the fuel priming pump. There is no bleeder screww and answered by a verified chevy mechanic. There is usually not a priming system on a gas engine, because the fuel pumps will usually get it through the smaller filters used quick enough you dont need them. The duramax fuel filter is responsible for keeping sediments from the diesel out of the fuel injectors.
Even the mentioned issue of filling the filter isnt consistent from mfg. How many different ways to prime a diesel engine plowsite. While earlier model cummins engines utilized a manual primer lever, cummins engines from dodge truck model years 1998 forward utilize electronic priming. Apr 09, 2010 i have a 2001 duramax that will not start without priming it with the hand pump. Choose top quality brands dorman, standard motor products. Noted that when using priming pump some fuel air comes out bleed screw when pump is pressed down but it when pump is. General motors duramax diesel lb7 fuel system diagnostics. Have not replace the housing before and it is stock. If any of the sediments get inside the injectors, the injectors cannot disperse the diesel properly throughout the engine. From 2001 to 2011, the duramax engine has had a similar configuration, and with that, similar issues. The duramax fuel filter is a diesel fuel filter that comes equipped on gm model trucks. I have been advised to check for air leaks and cannot find any.
Fuel tank pickup modificationsdmax the duramax fuel sending unit pickup assembly is very restrictive and not designed to provide the large volume of fuel required to support high horsepower numbers. Replacing the entire assembly eliminates the hassle of having to rebuild the unit. In this video i show a stepbystep description on how to get the air out of the system and get your. Many owners can brag about 2 and 300000mi service with very few if any issues. Chevroletgmc diesel diagnostics oregon fuel injection. Common issues and problems we see in the shop with the lb7. Prime the fuel system with the hand primer until 10 psi is indicated on. Complete rebuild kit for your 20012010 duramax fuel filter primer head. Prime the fuel system with the hand primer until 10 psi is indicated on the gauge, check for external leaks and repair. Do you own a 20012007 gm vehicle equipped with the duramax diesel engine and have a no start condition following fuel filter service. Chevrolet silverado 2500 duramax diesel will not prime after. While various versions of the engine have surfaced over the years, all generations of the duramax are based on the same foundation.
Buy primer fuel filter seal rebuild kit and bleeder screw for 2001 2010 gm duramax fuel filter housing. Awesome, that would possibly explain why i have some fuel leakage when priming around the filter housing which i had not seen before. Includes all seals and orings and a billet aluminum replacement bleeder screw. It can also be relatively difficult to prime the fuel system once air has been introduced into the system, such as when the fuel filter is changed. I have discovered there is no manual prime for the vans, but instead an ignition priming process. Open the hood of the vehicle and locate the fuel pump. As stated some engines are relatively self priming, some require manual priming. Diesel fuel priming pumps ensure that the highpressure injection pump has an adequate fuel supply and pressure at its inlet. The truck was towed back to the shop after it wouldnt restart the other day. Best way to bleed diesel fuel system stepbystep youtube. Hi everyone and thanks for the help in advance 04 lb7 144000kms dually auto this is a little strange one, my neighbor got his truck stuck trying to plow and i pulled him out with no issue. This causes a vehicle to have problems starting, forcing you to prime the fuel system to remove the air. If it is fine then try priming the fuel system with the manual prime to see if it starts. Chevrolet silverado 2500 hd fuel filter primer housing.
This product is to be installed only by persons knowledgeable in the repair and modification of vehicle fuel systems. Drove it a fairly far distance home with no issue what so ever. Jarrett, extension agricultural engineer when you change a diesel fuel filter, run out of fuel or disturb the fuel system, air is trapped. Prime the new fuel filter by pushing in on the black primer cap on top of the fuel filter until the diesel starts to run out of the relief valve. If you pump the priming pump and it hold pres let it siit for. Duramax no start fuel filter priming proceedure fuel filter. Typically used just prior to cranking the engine until a mechanically driven lowpressure pump takes over, paragons fuel priming pumps are powered by a brushless dc motor that provides exceptional reliability and eliminates costly downtime, especially. This is a direct replacement for your 2001 2004 lb7 duramax and no fuel line modification is needed. Duramax diesel fuel filter head rebuild how to by merchant. I changed the filter filter, tried priming the filter, could not get fuel out of bleeder screw. Follow the gm fuel system diagnosis in the service manual. In order to do proper diagnostics you will need a scan tool and some special tools such as a vacuum test gauge j44638 otc 6754 available from gm special tools.
I installed my fuel filter housing and solved my no start issue on my 2001 duramax. The lb7 was available for 2001 to 2004 model year gmc and chevrolet hd pickups. Fuel pumps for chevrolet silverado 2500 hd for sale ebay. Model number 20201 20012010 gm duramax operating and. Bleeding air from diesel fuel lines and filters farm machinery fact sheet fm01 by dr. Air could have entered the system in one of the following ways.
The 2001 to 2004 lb7 fuel filter housings seem to be the most prone to problems. I have pumped the prime pump until my hands cramped, but cant get any pressure to build. New ac delco fuel filter assembly with primer fits 20012015 gm 6. How to change the fuel filter chevy duramax and proper priming. Correct any condition that caused the loss of prime. I have a 2001 gmc duramax with lb7 was running great until a week ago when i pulled into the driveway and died. If youve ever ran your diesel out of fuel you know you dont ever want to do that again. Buy a 2001 chevrolet silverado 2500 hd fuel filter primer housing seal kit at discount prices. I have a 2001 duramax that will not start without priming it with the hand pump.
Duramax diesel will not prime after replacing fuel filter. However, doing so puts an enormous amount of stress on your expensive inje. I am replacing the 2 stage fuel filter on an 06 chev express van with a duramax diesel. If air gets into the fuel lines, it will be necessary to prime the fuel system to eliminate the air before operating the vehicle. According to lind, there are common issues with the engine becoming starved for fuel. Is your engine hard to prime or even lacks a priming pump. This will allow the diesel to bleed out of the relief valve hole. I also removed the fuel filter, filled it with diesel and still would not prime. I have seen youtube videos on a fuel filter change for the 6. Order chevrolet silverado 2500 hd fuel filter primer housing seal kit online today. Over the years these trucks have been really good performers, but they do have some common problems that we see over and over again. Airdog 2 4g fuel pump kit 2001 2010 sierra 2500 3500 duramax 6.
Because there is no factory lift pump to circulate fuel, the injection pump has to suck fuel from the tank and through the filter to run. Do you own a 2001 2007 gm vehicle equipped with the duramax diesel engine and have a no start condition following fuel filter service. In stock form and even when substantially modified, gms legendary v8 diesel can provide hundreds of thousands of miles of troublefree use. How to bleed the air out of the fuel on a duramax youtube.
This plug is anodized gold for strength and durability. T c10 095g duramax 20012010 with stock moderate horse power modifications t c10 150g duramax 20012010 with moderate extreme horsepower modifications note. Pump fuel through the fuel line via the manual pump to prime a fuel system. Check out free battery charging and engine diagnostic testing while you are in store. Deteriorated fuel filter seals can wreak havoc on any diesel engine leading to stalling or even nostart conditions. I cant believe on this unit you send the air to the engine. If you have a 2005 2010 duramax engine installation is direct bolt on.
Nnnnnnn you need to start by checking the fuel filter and replacing it if necessary. New ac delco fuel filter assembly with primer fits 2001 2015 gm 6. This truck has been having issues loosing prime since the fuel filter was changed. But if you must do some work on the fuel system, that just isnt possible. Fuel rail check valve chevy and gmc duramax diesel forum. Reinstalled old filter and orings, then reinstalled new filter and orings. Priming fuel system chevy and gmc duramax diesel forum. You do have to reprime the fuel system up to the injection pump with primer pump.
Priming the fuel system there is an electric priming pump that will bring fuel to the engine and eliminate air in the fuel lines. The stock high pressure bosch cp3 injection pump has the ability to flow plenty of fuel to produce 450hp without a lift pump. Hey my truck has been acting up and has been in the shop for over a week with a fuel system problem. Filter is not a spin on, and it is located under the truck by the fuel tank. Here are the steps to prime a diesel engine in case you find yourself needing to do this difficult task. In order for the duramax diesel fuel system to work properly, the fuel lines must be full of fuel and contain no air. I am not mechanically inclined but can do basic stuff. The problem is that there is no mention of the fuel rail check valve in the manual so below is what my garage guy said. Dec 03, 2017 is your engine hard to prime or even lacks a priming pump. Its been said before, but that doesnt make it any less true. Now it still wont start unless i use strating fluid and it will not idle. How do i prime a fuel filter for a duramax answered by a verified technician. The racor pff4245r204 parfit fuel filter head assembly is a direct replacement for your 2001 2004 gm 6. Get the best deals on fuel pumps for chevrolet silverado 2500 hd when you shop the.
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