Duramax fuel filter housing cracked

Chevrolet silverado 3500 general diesel fuel system problems. Anyone know if this will work of know if where i can get one cheap. The fuel filter housing aka fuel conditioning module in gm literature is on the suction side there is not a fuel. This can prevent more complicated and expensive issues. First problem with the lbz, fuel head replacement youtube. It is quite common for the fuel filter housing to develop a small crack or let air seep in due to a bad housing oring or waterinfuel sensor oring.

A common problem with highmileage 20012010 duramax trucks is that the fuel filter head assembly begins to develop air leaks. The 2006 and later trucks will need the stainless air box tray. The dorman kit allows you to replace just the seals, without needing to purchase a costly filter head assembly. Lind also noted that the fuel filter housings are often susceptible to premature failure, and are also the most expensive housing to replace. The fuel filter housing is on the suction side there is not a supply pump from the factory and are prone to suck air. Move to the top side of the engine and pull the fuel filter out of the engine compartment. On 2005 and newer trucks, there is a fuel filter life monitor that more accurately predicts fuel filter life as it takes into account total fuel flow through the filter assembly, which can vary greatly depending on the trucks usage. This fuel filter works great on my 2007 silverado hd with the lbz engine. Sounds like the water in fuel wif sensor cracked or leaked and allowed it to suck air. Help my repair center wants me to pay for cracked housing. Duramax cat fuel filter 2 micron upgradeadapter kit. I did have to replace the whole fuel filter housing last year because of a leak on the primer pump, and when i did it included the ac delco filter.

Chevy silverado 3500 duramax diesel, has a cracked fuel filter housing, contacted chevygm customer care regarding this problem and even gave them a tsb that i found on website and informed them of many complaints from other owners. Fuel filter base housing was sucking air on my 2007 lbz, creating a nostart and a. The engines cp3 highpressure fuel pump is capable of drawing fuel from the tank without the aid of an external lift pump as long as the system remains primed. The pump button should be pumped about 2 more times once the fuel comes out and then tightened as the button should get firm after bleeder screw is tight but dont over tighten cause like i said they crack easy and suck air in while cranking. No codes are stored, except cracked fuel filter housing. Fairly common issue when you overtighten the sensor while doing a filter change. A cracked fuel filter cap can lead to air in the fuel system.

Georgia diesel has a used one for me, at a good price. This is a direct replacement for your 20012004 lb7 duramax and no. Upgrade your fuel system with this billet aluminum filter housing from hsm to ensure youll never have to deal with a cracked or broken housing, plus, it looks pretty awesome, too. With my 01 duramax truck i am running an airdog pumpfilter assembly on. This housing is engineered and manufactured to fit and function like the factory housing while being much stronger,wont easily to be cracked when.

Upgrade your fuel system with this billet aluminum filter housing from hsm to ensure youll never have to deal with a cracked or broken housing, plus, it. If your fuel filter head is cracked or broken, the duramax fuel filter head housing can fix the problem. Duramax fuel filter head replacement bleeder screw replace a stripped, cracked or leaking bleeder screw on your duramax fuel filter head. Episode 1 of merchant automotives mechanics minute. Contrary to popular belief the oe filter housing does not crack. In this episode we take a look at the cause of a cracked bell housing on a customers truck. Most cracked piston scenarios play out at power levels well beyond. Second, always change the fuel filter at or before the recommended service interval. Sinister diesel blue spring kit with billet spring housing and fuel. I think my fuel filter housing is cracked on the lb7. Fuel filter housing cracked chevy and gmc duramax diesel. It is quite common for the fuel filter housing to develop a small crack or let air. The factory fuel filter housing on your l5p duramax is built from plastic and can crack when overtightened.

The black, white and greys of the duramax fuel filter. Instead, the engine operates by vacuuming the fuel from a tank with the help of an injection pump. This kit is designed to rebuild the fuel filter base also known as a fuel filter head found on your 20012010 gm 6. Replace your worn or leaking filter head with a brand new unit. Replacing the fuel filter head on the 2007 classic lbz duramax. The fuel leak you saw also allows it to suck air into the system, causing a loss of prime. Fuel system component parts duramax diesel performance. Fuel filter not sealed good, fuel filter double o ringed because the old one was left behind on the housing. Anyone delete their factory fuel filter and housing when using the airdog system with the filters. Its common, particularly on 2001to2007 lb7 models, for the filter housing before the filter to develop cracks and leaks in the oring, allowing air to enter the system. This is a complete kit consisting of the filter head, mounting bracket, tall filter, lines, fittings, clamps, and fullcolor.

The duramax has long been susceptible to fuel starvation failures because the engine doesnt use a lift pump to feed the primary pressure pump. Upgrade your fuel system with this billet aluminum. Its easier for the engine to suck air through the leak than to suck fuel from the tank. The design of the filter housing is the cause, as duramax does not utilize a pump.

Over time, the stock fuel filter head can leak or become damaged causing poor running conditions, hard starting and more. The dorman 904124 fuel filter primer seal kit provides an easy solution to rebuilding the fuel filter head on your 20012010 gm 6. This is a must for any duramax owner that is tired of the cheap, easily brokenstripped plastic fuel filter plug. Are you removing the bleeder screw on top of the filter housing when priming till fuel comes out. This fuel filter head will restore proper operation to your fuel system. Complete add on fuel filter kit specifically designed to fit under the hood on 2001 thru present dmax equipped pickups. The gm 12642623 fuel filter head assembly for your 2004. Broken or cracked bleeder on bottom of fuel filter.

This can be contributed to the fuel filter housing design and the fact that the duramax does not use a lift pump. I bought a duramax yea i know the earth may have just went off its axis but i. Fits 20012016 lb7llylbzlmmlml chevygmc duramax diesel. Duramax lml lgh cp4 pump failure technical bulletin. In this episode we take a look at the cause of a cracked bell housing on a customers. Fuel filter housing head for 200420 chevy silverado gmc sierra 2500 3500 6. After that check injectors to make sure you dont have a loose one. Diy duramax fuel fix for leaky filters diesel world. Fits 201116 model year using one of your original fittings contact us for details. We use cookies to give you the best possible experience on our website. Along with having many of the same issues as the lb7, the lly 2005 to early 2007 and lbz 2007 also face a new set of possible untimely issues. Rather, the high pressure fuel pump injection pump is responsible for vacuuming fuel from the tank. Somehow my injectors were bad and there was grit in the fuel rails. This kit includes new seals along with a brass bleeder screw to allow a complete reseal of the factory fuel filter base, rather than replacing the entire unit when worn or cracked seals create air leaks or other priming issues in your fuel system.

Prime the fuel system with the hand primer until 10 psi is indicated on the gauge, check for external leaks and repair. Dhd fuel filter spacer kit gm duramax diesel more details. I was thinking of taking it off the lbz anyway since i have the airdog and filters on the truck. Follow the gm fuel system diagnosis in the service manual. Chevroletgmc diesel diagnostics oregon fuel injection.

I can remove and replace from the top without taking anything else off. Available with either the cat 1r0749 or donaldson p553207 water separator clear drain bowl sold separately. The duramax diesel is susceptible to fuel starvation and getting air in the fuel lines. Air in your fuel system can have a disastrous effect on your vehicles performance.

For this reason, dirty or loose fuel filters, leaking waterinfuel sensors or bad orings in the fuel filter housing can cause nostart conditions, especially hot. Injector return lines are under the valve cover on lb7 engines. Informed i have a crack in the fuel filter housing. While in butte, montana, on 8619, after about 1500 miles, the truck quit. New ac delco fuel filter assembly with primer fits 20012015 gm 6.

This is either because you are out of fuel, you have a rotted line or the primer pump is bad. One of the most common problems with this design that 6. If the pressure drops from 10 psi to 2 psi in less than 1 minute, remove the fuel outlet line from the filter and cap it. Duramax fuel filter head bleeder screw injectorsdirect. Fuel filter restrictionlift pump psi gauge kit for duramax.