1996 Pontiac Grand Am Repair Question
Topics covered: Ignition module, Sensor, Engine.
Mileage: 120,000 miles.
Mileage: 120,000 miles.
Asked on December 30, 2011
Why won't it start?
Car has been running well. Parked it and came out the next morning and engine would crank over, but would not start. Have determined that engine is lacking spark and fuel. Upon key on, i hear the fuel pump run, along with everything else powering up ok. All fuses ok, including the pcm and ign fuse. Have replaced the coil pack along with the ignition module and crank sensor, but with no change. Ignition module getting the 12 volts at the 2 pin conn. on left side. Crank sensor ohmed out at 901 and with engine cranking was getting 1.1 volts. All grounds look good. Unplugged map sensor, no change.
Wondering what to look at next??
Wondering what to look at next??
Answer
Replied on December 30, 2011
some testing help here. http://troubleshootmyvehicle.com/gm_ckp_3.1L_3.4L/ckp_sensor_test_1.php
http://easyautodiagnostics.com/ignition_gm/ign_module_test_1.php
Replied on January 1, 2012
Thanks for your help, but the ignition module and crank sensor has already been replaced prior to your post on testing them....Any other clues?
Replied on January 1, 2012
you checked ignition module ground wire next to hot?
Replied on January 1, 2012
Yes, we have a good ground on that side.
Replied on January 1, 2012
did you test CKP pulse at ignition module?
Replied on January 1, 2012
Yes, around 1v cranking the engine and it ohm'd out at 900ohm
Replied on January 1, 2012
Correct, no spark...Everything leads to the module in my mind, but I have tried two different ones.....