Engine Performance problem
1999 GMC Suburban V8 Four Wheel Drive Automatic 120000 miles
This is the 7.4l V8, K2500.
Tested for spark, no joy. My question is how do I determine if the ignition module is bad, if there is a problem with the coil, if the distributor/rotor is shot, etc? I removed ignition module and coil, took to a local parts store who 'checked' module and said was bad. I asked them to check the new module to verify it was good, he tested and it was bad. Tested another module from their stock, was also bad. I assume the counterperson had no clue how to test. Can I test it and if yes, how?
Same question on the coil, how do I know if it's shot or good?
have the same problem?
Monday, June 15th, 2009 AT 10:58 PM