Engine Performance problem
1998 Chevy Truck V8 Four Wheel Drive Automatic 166000 miles
I have a 98 Chevy 4x4 2500 truck. Replace the engine about 9000 miles ago. I replaced all the sensors on the motor, then the truck started to run rough. Ran all the codes the truck threw. The truck at 2000 rpm range feels like you're pulling a heavy trailer it jerks while at cruising speed. I ran a DTC scanner on it an nothing showed up so I replaced the plug wires. Then a MAS code low voltage signal came up, replace the MAS sensor. Still runs rough. Almost like its detonating, doesn't do it under exceleration.
have the same problem?
Sunday, November 15th, 2009 AT 12:52 PM