An engine vacuum leak may develop from the throttle body gasket causing a higher than normal idle speed. Failed gaskets should be replaced.
Average mileage: 194,000 (190,000–198,000)
Engines affected: 5.7L V8, Gasoline
6 people reported this problem
I was driving on the highway. Next thing I know, the car is bucking like it was choking on something. After that incident, the truck had to be in drive 2 and won't go faster than 45 without the rpm racing up to 4,000rpm. I checked the egr valve, I changed out transmission fluid ,did oil change. Talking about timing. Other than the book,I'm not doing much. There's not much in the wave.