Originally Posted by SimonJThom
So did you guys get a solution to this as I got the same problem?
1. I Replaced the solenoid
2. Tested the Lines
3. CCVS told me could be power replaced the Battery
4. I found that when I remove the top airline and let the air out and place it back I can go for some time driving normal
5. So I am at a loss and advice
i had the same problem on my 2004 grand 2.7 when i bought it, it was at 3 different dealers, for about 2 months and they could not get the problem, at the end i took it to a place called nexor diesel and the figured out that it was the turbo, the turbo was replaced and issue was gone.
im not saying that it is the solution to your problem but it might be worth looking at.
jeep said they tested the turbo and all tests showed fine, but replacing the turbo was my solution...