1994 Pontiac Grand Am stalling

Tiny
SOUTH61
  • MEMBER
  • 1994 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 113,025 MILES
My 94 grand am was running fine until one day it just died tried to start it it cranked started then died this repeats replaced plugs, coils, ing module, coil housing and tried 3 computers it still happens sometimes it will start and run for a few weeks then do it all over again if I let it sit for a day sometimes it will start sometimes it wont checked wiring, fuses, relays among other things. Can you help?
Friday, May 14th, 2010 AT 10:51 AM

10 Replies

Tiny
INTERNETMECHANIC
  • MECHANIC
  • 700 POSTS
I'd have to do testing when the problem occurs. If it cranks good but won't start, have a helper crank it while you visually check for spark at the plugs. If the coil/ignition assembly sits right on top of plugs, a little more awkward but still possible to check for spark. If you have spark everywhere, use a gage and check fuel pressure. Are there any applicable trouble codes? When the problem occurs, Engine cranking, is there an rpm signal? Intermittent issues can be hard to track.
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Friday, May 14th, 2010 AT 11:47 AM
Tiny
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There is spark. It now runs but if you hold the gas pedal down a little, as soon as you let off the pedal it dies possibly tps or idle control?
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Friday, May 14th, 2010 AT 3:27 PM
Tiny
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Yes, It could be an idle control issue. I wouldn't throw parts at it.
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Friday, May 14th, 2010 AT 4:20 PM
Tiny
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Yea I dont want to waste money . This problem is getting very upsetting being this our only transportation need a fix quick all the mechanics in the area are just guessing computer wont throw any codes other than air cond. That hasn't worked in years though
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Saturday, May 15th, 2010 AT 9:29 AM
Tiny
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Ok now its back to not wanting to start at all cramks but wont start
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Saturday, May 15th, 2010 AT 11:34 AM
Tiny
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Well not only will it not start it wont allow me to pull codes dosen't even give me the 12 code acknowlegement arrrrggggg
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Sunday, May 16th, 2010 AT 9:08 AM
Tiny
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On older makes and models, I've seen where the mil wouldn't work for some reason, but, the scanner would show live engine data.
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Sunday, May 16th, 2010 AT 2:37 PM
Tiny
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IM BEING TOLD THERE IS NOT A SCANNER FOR A 94 ONLY 95 AND UPTHIS PIECE OF JUNK WONT START FOR NOTHING NOW I HAVE ABOUT HAD IT TIME TO DRAG IT TO THE BONE YARD
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Monday, May 17th, 2010 AT 4:09 PM
Tiny
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I've never heard of that? I have a low end scanner at home, will work on both obd1 and 2. I know in the cross-over years for obd1 and 2, some systems had hybrid datalink connectors. Don't know if yours is one? I'm talking a scanner that will show live engine data, not a code reader. If your datalink connector is 12 pin, common gm obd1 datalink connector. I don't know why you can't scan it? I double checked at MOD. Don't confuse code readers and scanners, two different animals.
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Tuesday, May 18th, 2010 AT 11:50 AM
Tiny
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WELL IM GOING TO MESS WITH THIA CAR AGAIN TODAY. IT WONT START FOR NOTHING, IT WOULD START LAST WEEK THEN NOTHING
WHEN I HAD IT STARTED IT WOULD STAY RUNNING IF I KEPT MY FOOT ON ACCELETATOR
IF I TRIED TO LET IT IDLE IT DIED
NOW IT CRANKS BUT NO START
WELL CHECKED ALL THE IGNITION COMPONETS AND THEY ARE GOOD STILL NO START WHAT A PIECE OF JUNK PONTIAC SHOULD BE ASHAMED
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Wednesday, May 19th, 2010 AT 7:14 AM

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