1989 GMC Truck Repair Question
Topics covered: Spark, Distributor, Electrical connector.
Mileage: No information provided.
Mileage: No information provided.
Asked on April 6, 2010
K1500 no spark
Electrical problem
1989 GMC Truck V8 Four Wheel Drive Manual
While driving, my truck just shut down. I have no spark. I replaced the plugs, wires, Dist. cap, rotor, ICM and coil. I have 12v at the coil and still no spark.Could it be the PCM or the ECM?
1989 GMC Truck V8 Four Wheel Drive Manual
While driving, my truck just shut down. I have no spark. I replaced the plugs, wires, Dist. cap, rotor, ICM and coil. I have 12v at the coil and still no spark.Could it be the PCM or the ECM?
Asked by Darrin AAnswer
Replied on April 6, 2010
where is that located and how do you test it. Just so you are aware, I have noone to help today.
Replied on April 6, 2010
The only thing inside the distributor is the rotor and the ICM, have replaced both of them
Replied on April 6, 2010
Disconnect the 2 wire connector that connects to the ignition module and using an OHM meter probe the disconnected 2 wire electrical connector that goes to the PICKUP COIL and you should have an OHM reading of 500 to 1500 ohms.
Also check each lead of the pickup coil to be sure that neither wire is shorted to ground.
Replied on April 7, 2010
Where are you checking for spark? coil or the plugwire end