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1-20 of 22 Results
  1. 911 Problems Forum
    I have a 2003 extended cab lb7. It has a custom 5in aluminum driveshaft. I discovered the output shaft seal was leaking. I decided to change the seal and the slip yoke. It’s leaking just as bad now with the new parts. No vibration, doesn’t seem to be any unnecessary play anywhere, slip yoke is...
  2. 01-04.5 LB7 Duramax Powertrain
    I’m new to the duramax world and have an 02 2500 Silverado just found out the transfer case is leaking when I went to drive today I know of the pump rub issue but don’t know much of the signs from it I have some pictures and to me it looks like the where the 2 cases meet the main gasket is...
  3. General Discussion
    I recently bought an 05 LLY with 250k, owned for about two weeks and I noticed puddles of dexron near the driver side front tire. The strangest part is that it’s not an everyday occurrence. Some days it leaks, some days it doesn’t. Sometimes it’s a decent sized puddle, sometimes it’s a few...
  4. 04.5-05 LLY Duramax Powertrain
    I know this question has been posted in varius forms and forums, but i have added to many variables into the equation to immediately jump to a head gasket leak. The truck is a 4.5 2500hd gmc, mods that might have influence on the issue are, sinister egr delete, and banks intercoolers. The truck...
  5. 04.5-05 LLY Duramax Powertrain
    I’ll start this off by saying I haven’t heard this truck run yet. LLY. Doesn’t prime. I believe there’s air drawing into the fuel system. Previous owner replaced fuel tank, sending unit, fuel lines up until where they turn up at the fire wall under the cab, filter housing and has a cat filter...
  6. 01-04.5 LB7 Duramax Powertrain
    Woke up this morning and realized I have oil covering the undercarriage and tailgate. Checked all plugs and filters and fluid levels. Oil is way low. Started checking around the motor and found no leaks. When I got under the truck to look around I found a broken part. I have no idea what it is...
  7. 01-04.5 LB7 Duramax Powertrain
    Hey guys, recently put my truck on a lift to check my t case and diff fluid's. Found the t case and rear diff to be completely empty! Just bought the truck about a month ago. I was trying to diagnoss the squawk which i found to be the commom problem with the yolk. I filled the diff and t case...
  8. 04.5-05 LLY Duramax Powertrain
    I have had this truck for almost a year. 130K. please see picture of coolant leak. is that the oil pan? I don't have much experience and appreciate all replies. leak started off intermittent, now just dripping away.
  9. 04.5-05 LLY Duramax Powertrain
    Well, I finally tracked down WHERE the fuel leak I was smelling in the cab was at... Sort of. It appears to be around injector #4. It doesn't happen until I take the truck out on the road. Clean engine going out, covered with fuel when I get back. I replaced the return line, no help. I...
  10. Suspension&Steering
    Hello, I need a schematic of the power steering system. I've got a leak on the part behind the brake reservoir. there are 2 high pressure lines and a return line going to it. It is leaking at the joint between this mystery part and the brake res. I believe it is a booster unit for the brake...
  11. 01-04.5 LB7 Duramax Powertrain
    Am I just paranoid?? So it started as a small leak between the tranny and engine. There was also a small leak next to my spin on filter this little aluminum tab thing (not sure what its for). Leak stopped fluid level is perfect but I can smell transmission fluid when I step out of the truck...
  12. Exterior
    Need some opinions here. I am purchasing and installing myself a set of cab lights on my 03 GMC 1500HD. Read a lot of different posts on the subject. After everything I've read on here, seems like most people have trouble with leaks on both Recons and Pacers. I am leaning toward OEM GM cab...
  13. Exterior
    Somebody help me out here - I was pretty set on Recon Lights until someone told me they had a leak problem. The leak is between the actual lens and base of the light, not around the hole that drilled to install the light. Anybody else had this happen? I am trying to decide between Recon and...
  14. Introductions
    Hello there. Just bought an 06 Chevy silverado 2500hd with a 10" lift and 39 1/2" tires. It has the 6.6l diesel engine with allison transmission. I love it so far except that I have a concern about oil leakage. I thought it was loose bolts but after tightening all the bolts I could find in...
  15. 911 Problems Forum
    ok well i have been having the low coolant message pop up here and there i add water and it will go away for a while,untill today i started my truck up,immediatly i smelt some coolant somewhere,i stop what im doing and look under the truck,its drip drip drip dripping down from somewhere i dont...
  16. 911 Problems Forum
    can anyone tell me why fuel would be leaking from the water in fuel sensor drain that threads into the filter? It's causing the truck to shut down and really pissing me off. New filter and o rings. Thanks
  17. 01-04.5 LB7 Duramax Powertrain
    went to work this am. looked under truck and large amount of fuel leaking under truck. looks like comming from back of engine but i cannot find out where from. any help?
  18. 911 Problems Forum
    i just installed my ADII today, not as bad as i thought. fired it up and it is literally PISSING fuel out the return line to go back to the tank. idk how i can fix this right off the top of my head, any body got any ideas that could help me out? :help
  19. 911 Problems Forum
    Ive always taken pride in how clean and oil free my motor and trans are. Not a bit of seapage anywhere and it looks like a 10,000 mile motor. Although its got 190k on it. Well I was changing the trans filters and fluid today and noticed a pretty good oil leak from the front of the engine. There...
  20. Transmission Shop
    crawling under the truck i notice i have a very small about of fluid coming from the output of the tcase. i cleaned it all up and i see no signs of any pump rub but i don't know exactly where to look. I searched but didn't find much other than the MA fix. Anybody post some pictures to...
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