Intercooler oil leak [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Intercooler oil leak


big buford
04-18-2005, 12:06 PM
I have a 04.5 LLY 8kmi and there seems to be an oil leak starting at the intercooler hose connection on the passenger side. Any info on this? Should I take it apart and clean? Any way to stop from happening again? Thanks, Mark

redneck45
04-18-2005, 12:10 PM
Just had mine back to stealer for this, they pull tube clean it and reinstall with a "sealer". mine didn't start unil 18k miles. No leaks yet!

big buford
04-18-2005, 12:15 PM
Thanks redneck45, sounds like an easy fix. Would rather not have the oil in there in the first place. Is it coming from the EGR or crankcase venting? Will the blocker plate and fingerstick help with this? Thanks again

McRat
04-18-2005, 12:30 PM
It's from the PCV. Neither the finger stick or the EGR blocker will have an effect.

BansheeBruce
04-18-2005, 05:01 PM
I had the same issue, there is a TSB somewhere on the forum about it.

dmaxhd
04-18-2005, 05:58 PM
14,000 and mine leaks to. Been in to get reclamped but it is leaking again...

big buford
04-18-2005, 10:48 PM
Anyone know what there using for the sealer?

BCHN4X4
04-18-2005, 11:12 PM
Mine started at 5,600miles, took it to the dealer told him about the PCV valve problem...ignored my advice, instead he cleaned it and told me if I have any more problems then bring it back...doesn't seem very efficent to me but who am I to say