2nd Gen Non-Engine/Transmission 1999 Second Gen

[BMailloux]

I have a 99 4-wheel drive that has an aftermarket Jake Brake that quit working, now the 4-wheel drive won't work either, is there a reason both would quit at the same time.

 

[DonFitzwater]

Vacuum loss..............................would be my guess.

 

[PC12Driver]

HVAC stuck on defrost too?

Trace the hose coming out of the vacuum pump (stuck to the back of the power steering pump) and look for holes. I remember that there was a common wear point somewhere along the line, but not its exact location.

 

[DavidC]

Yes defrost to, that is the default position

Dave

 

[JMcCoy]

Yes it is. Usually goes bad at the elbow leaving the vacuum pump. Mine has dry rotted several times. Should be easy and cheap to track down and fix.

 

[BMailloux]

I have a 99 4-wheel drive that has an aftermarket Jake Brake that quit working, now the 4-wheel drive won't work either, is there a reason both would quit at the same time.

Thank you all who responded to my post, it was in fact the vacuum line that had a crack in it, and was an easy fix.
Thank You all for the help
bmailloux