Quote:
|
Originally Posted by doctorhrdware
When it is warmer I will take a look at the ducting for any obstructions.
I also have another annoying problem, at around 40mph the truck will surge. The rpm will go up and down maybe 100 RPMs and the speed will also move up and down maybe a half a mile an hour. I have replaced the fuel regulator about 2 years ago. The fuel filter has been replaced also. It is so much easier to work on the wife's truck. When it comes to oil changes and working under the truck. My pontiac is a real pia to do the oil changes.
|
your surges at 40mph may indicate a transmission problem. at this
speed the torque converter will engage this causes a 100rpm drop and a shift feel..If this is pronouced it may mean transfliud replacement ,and a plug change and wire resistance measurements.
this transmission fluid has changed it is now dextronVI.dextron III is bad for our transmissions as it does not flow properly and lubricate as it should ....GM put out a tsb about this in 2005...
how often and what transmission fluid do you use ?
transmission filter must be replaced also..