1999 gmc sierra 1500 4.3l runs rough erratic idle no throttle response. replaced distributor w all new components replaced spider assy replaced crank shaft sensor drained fuel and replenished

1999 gmc sierra 1500 4.3l runs rough erratic idle no throttle response. replaced distributor w all new components replaced spider assy replaced crank shaft sensor drained fuel and replenished 1 Answer

I have a 1999 gmc sierra 1500 4.3l. It start good, after about 20 seconds it starts running rough erratic idle and no throttle response. I've had ongoing problems with this truck for about a year now. I have replaced the distributor twice ignition coil fuel injectors (spider) and crankshaft sensor. I also drained and replenished fuel, all to no avail. No trouble codes present. 6 Answers

1998 gmc sierra k1500 no spark replaced ignition coil crankshaft sensor ignition module all fuses are good still o spark what next??? 2 Answers

no spark replaced ignition coil, module, and crankshaft sensor fuses are all good still nothing

97 gmc sierra 1500 5.7liter rough idle and wants to die in gear and runs rich 4 Answers

Could this be my fuel pump

Rough idle and misfiring at lower rpms. If I stomp on it it seems to run smoother. Replaced fule filter, cap and rotor, pcv valve, crank and cam position sensors, mass air flow sensor,. 1 Answer

After all parts were replaced I disconnected both battery cables and touched them together per a mechanics suggestion to "clear the computer ". Would a dirty egr cause this? Please help.