My oil overflow tube puffs smoke
#4
The truck only has 256k miles and runs great and seems to have been maintained well. Is this bad?
I think so? It dumps underneath the truck towards the middle-front
---AutoMerged DoublePost---
"1st test. Remove the vacuum hose from the vacuum pump and cap it off. It must not be able to pass air. Road test for long enough to determine if fixed.
If the vacuum pump cannot hold a vacuum in the A/C system and 4WD controls, it will become a AIR pump and pump this air into crankcase in high volume. It is much worse at high RPM as the vacuum pump is a positive displacement unit.
If this fixed the oil fog, repair the leak"
Taken from cumminsforum... does this sound accurate? There is nothing hooked up to my air pump so maybe this is the issue.. (even though I thought I put a cap on it)
I think so? It dumps underneath the truck towards the middle-front
---AutoMerged DoublePost---
"1st test. Remove the vacuum hose from the vacuum pump and cap it off. It must not be able to pass air. Road test for long enough to determine if fixed.
If the vacuum pump cannot hold a vacuum in the A/C system and 4WD controls, it will become a AIR pump and pump this air into crankcase in high volume. It is much worse at high RPM as the vacuum pump is a positive displacement unit.
If this fixed the oil fog, repair the leak"
Taken from cumminsforum... does this sound accurate? There is nothing hooked up to my air pump so maybe this is the issue.. (even though I thought I put a cap on it)
Last edited by 85_305; 03-30-2010 at 05:10 PM. Reason: Automerged Doublepost
#9
I'll take a peak tomorrow. Thanks guys