so my truck idles just fine. you go to get on the gas and it maxes out at 2500 rpm's. the distributor (complete), plugs, wires, coil , fuel filter, and injectors filters, have all been replaced. any idea what could be wrong.?

 

Not sure if it has one, but might check for a bad TPS.

 

thanks for the reply. but what is a tps!?

 

TPS = Throttle Position Sensor.......but how about your timing? is it right? or are you "180 degrees out"?

 

i had a 1994 suburban 5.7 litre non-vortec not sure how close it was to yours but mine did the same thing got few more rpms then u but idle fine and it turned out to be the fuel pump. always thought they would just quit but nope. changed it and like a whole new truck. my 2 cents

 

ok so we got it to idle fine and drive fine for about a mile. then it wouldn't break 1100 rpm's. took it to the mechanic. FUEL PUMP. thanks for the input. greatly appreciated