That's what the squeaking problem I posted a while back. Rear caliper was the issue.

 

It was intermittenly seizing, but not locked all the way. Turned out it was a problem but not whats robbing my engine. Its back at the dealer this weekend. Im almost convinced its the stator in the torque converter slipping. Fuel psi test was fine, so was the vacuum test, n all sensors are working pproperly. Got worse yesterday n is now doing it all the time so we shall see.

 

Finally fixed it just for everybodys info, it turned out to be a bad pcv valve. Dealer never found, i finally got fed up with the dealer and started looking myself, pcv was stuck open, causing vacuum leak style problem. New 8.09 pcv valve and she runs like new, mpg went back up instantly to 19. Goes to show dont overlook the small stuff.

 

Those things never go bad! Far out. Guess dealer fixed calipers?

 

Here we go again. Changing the pcv fixed it for about a week and the problen has slowly come back. Its as bad as it was again. Im puzzled as to y changing the pcv temp fixed it. Pcc was def bad, oil in intake etc... Thinking vacuum leak but still cant connect pcv fix... Any ideas?

 

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