93 Grand AM turns over but won't start

[LordRAB]

I have a 93 Grand AM, when I try to start it it turns over but will not start at all, I've checked spark plugs for firing - ok, checked fuel - gets fuel, checked fuzes - all ok, anything else I should look at????

[xeroinfinity]

What size motor you hav ??

[LordRAB]

6 cylinder 3.3L

[kok328]

Check to see if the timing belt has jumped a tooth or two.
Check ECM or PCM for good connection.
Change your plugs if their fouled by raw gas.
Check for error codes in the computer.

[LordRAB]

I've checked all that
i have no spark from spark plugs, after putting new plugs in
no spark from coil pack, have no way of checking computer codes
I'd change there spark plug module/coil pack but want to make sure that is teh problem first
brand new it cost $230.00 before taxes

any other ideas ro things I might check????

[kok328]

If it's a Tri-Pack coil, I wouldn't expect all three coils to go bad. It could be the ignition module. I believe you might be able to have this tested before replacement.
If that doesn't work for you, I'd go to the computer next. Replace it (keep your prom). Go to a junk yard to keep cost under control on a guess and by golly approach.

[LordRAB]

thats what I was thinking but wasn't too sure, I didn't think all 3 would go at the same time, thanks I appreciate all the advice, I'll let you know how it works out

[xeroinfinity]

An ignition module or the Ecm is most likly why thiers no spark. And If all the fuses for those are good.
The V6 has a timing chain, they can break but the motor would turn over really fast, you would notice the diff.

Both of those parts, Ecm and ignition mod can be test, i'm pretty sure. I'll see if I hav a link with the rundown

heres a pic showing how to test the coils properly.
HEI

Also,thiers two crankshaft position sensors .
Thiers also a camshaft sensor, related connecting wires, and the Electronic Spark Timing Ignition Control portion of the computer control module (ECM or PCM).

Good Luck

[LordRAB]

I found the problem it was the ignition module.

Thanks for the help

I am also having a problem with the car shuddering when I first accelerate, after it hits 2nd gear its fine, I can start in 2nd gear and it goes perfect. Any ideas. I have a mechanic checking it out now. Let me know.

I'll post what the mechanic finds.