I work for a school district which has an automotive class. My son's Riviera had some problems so I let the auto shop handle it. To make a long story short, I have replaced the fuel ejectors, the supercharger, the harmonic balancer, the belt tensioner, and several sensors. The car will not start. For some reason there is no spark. The autoshop is checking each wire to determine if one is broken. I just bought a computer module and hopefully will know tomorrow if this solves the problem.

Any suggestions?

Thanks.

Was the crank position sensor one of the "several sensors?" If not I would look at it.

Was the crank position sensor one of the "several sensors?" If not I would look at it.

Yes, the crank sensor was one of the sensors that we replaced. The school auto shop has yet to put in the new computer module, so I'm still waiting to see if this works.

Thanks for the reply.

:mad:
Sorry to here that you have replaced so many things, without success. If you are not getting a spark while starting, you would have a bad ignition switch, ESC module or fried PCM. Of course, they also depend on input from the CPS. :cya:

I had the same problem, minus the shop class. It turns out the ignition switch (which contains the steering column wire harness) had ark deposits on the contact that tuns on the spark system. The car would crank, the injectors would fire but no spark. Once replaced, my car never ran so good.

I had the same problem, minus the shop class. It turns out the ignition switch (which contains the steering column wire harness) had ark deposits on the contact that tuns on the spark system. The car would crank, the injectors would fire but no spark. Once replaced, my car never ran so good.

Thanks for the information. I really appreciate your assistance. The shop class unfortunately is still working on the problem. The shop teacher found a broken wire in the wiring harness. I'll have him check out the ignition switch.

Thanks again. :smile:

I had the same problem, minus the shop class. It turns out the ignition switch (which contains the steering column wire harness) had ark deposits on the contact that tuns on the spark system. The car would crank, the injectors would fire but no spark. Once replaced, my car never ran so good.I have a question for pppppaul. Was the ignition switch replacement a permanent solution? Also, Did rkillion76 drive his car out of the shop class? Thanks, berad