1992 Pontiac Bonneville stalls while driving

Tiny
MARYB
  • MEMBER
  • 1992 PONTIAC BONNEVILLE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 196,000 MILES
The national chain repair shop told me it was the TPS causing my car to stall while drving. I had the new TPS installed it still has the same problem. What else can I try without spending money to troupleshoot? Some say MAF, some say vacuum leak, others say feul system cleaned, some say fuel filter replace; how do I know for sure. The national rapair shop said they put it on computer and it said YES it's the TPS.
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Tuesday, February 12th, 2008 AT 4:06 PM

12 Replies

Tiny
MASTERTECHTIM
  • MEMBER
Is the check engine light still on?
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Tuesday, February 12th, 2008 AT 4:20 PM
Tiny
MASTERTECHTIM
  • MEMBER
When it stalls while driving does it start right up? Or does it take a few minutes to start? Reply to this post so the other moderators can watch and give their input.
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Tuesday, February 12th, 2008 AT 4:40 PM
Tiny
MARYB
  • MEMBER
Sometimes it starts right back up couple times it was long cranking then started.
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Tuesday, February 12th, 2008 AT 4:49 PM
Tiny
DWILHELM
  • MEMBER
I have a 1998 bonneville that has been stalling once a week for 3 weeks now. Imine won't re-start right away, usually after about 20 min. No codes. I'm trying to figure out problem too. We have already replaced fuel filter and my cat converter was replaced couple of months ago. I think I may have in bad gasket at my intake manifold but don't know if that would cause the stalling.
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Sunday, March 2nd, 2008 AT 12:38 PM
Tiny
MASTERTECHTIM
  • MEMBER
D your problem is probably the crank sensor. When stalls and wont restart check to see if you have spark, if you dont then replace the crank sensor
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Sunday, March 2nd, 2008 AT 12:52 PM
Tiny
MARYB
  • MEMBER
After all the "guess work" of 4 techs, my problem is solved. It was the computer that needed to be replaced. So far so good no more stalling and starts right up! I had so many techs tell me their "findings" and none of them were right. The computer was putting out wrong codes which told the first tech TPS, WRONG! The reason the codes were wrong is because the ecm was bad. Finally, a tech, who I guess shows he knows what he is doing found it was the computer under the dash that was bad and replaced it. I think it is called the ecm. Well hooray for him. I sure have learned and I hope all you techs learn from this. I still stand by my philosophy, that if an auto tech really knows his stuff he does not have to go through all the false guess work diagnosis but rather find the real problem. My story is living proof that my theory is correct. I found the man.
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Sunday, March 2nd, 2008 AT 8:56 PM
Tiny
MARYB
  • MEMBER
One more thing, I am a woman and not an auto tech. However, I think a lot of diagnosing a car repair problem, is good listening, good communication, in addition to knowing what you are doing. Also a great deal of common sense is involved, as is living proof with my problem being solved. It is dumb to keep putting parts into a car costing money and time just to find the problem by process of elimination. Does that make sense? One guy even told me it could be my ignition switch. I cannot deal with "could be" as I do not have money to replace parts that are not needed in the first place. Now if I add up all these false diagnosis from all these auto techs by putting in all these parts, I would have put in a fortune that I do not have. It was not the ignition either. That is plain nonproductive. Auto diagnosis should not be guess work. I could not believe it when he said the computer was bad after I had my car towed to 4 auto tech places. It is just stupid to keep putting money and parts into a car and it does not fix the problem. One more thing, he showed me on the bad computer when he tapped it with a screwdriver the car stalled, so it was an intermittent problem, FYI anyone that is interested. So, common sense and good listening, and skill prevail. Thank you and Amen.
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Sunday, March 2nd, 2008 AT 9:10 PM
Tiny
DWILHELM
  • MEMBER
Thanks Tim. I tried to leave feedback but apparenlty have no points to give. I will try crank sensor next time car stalls. I have had my 1998 Bonneville for almost 3 years. In that time had hydro-lock twice then the cat converter was plugged and I had absolutely no power. Thought I was going to have to push it up hill. Now this random stalling.I got this car 'cause it had 3800 motor which is what is in the '91 Parke Avenue we bought my daughter when she was 16. She is now almost 22 and the car has over 220,000 mi, she's still driving it and we've had very few problems w/ that car. And minor to boot.
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Sunday, March 2nd, 2008 AT 9:57 PM
Tiny
MARYB
  • MEMBER
Did you read my post? Try your ecm
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Monday, March 3rd, 2008 AT 11:28 AM
Tiny
MASTERTECHTIM
  • MEMBER
Mary im surprised at your suggestion to try a ecm. Havent we learned proper diagnostics need to be followed. Lol
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Monday, March 3rd, 2008 AT 12:59 PM
Tiny
MARYB
  • MEMBER
Well it fixed my problem. Oh, you mean spend more money to the tech unnecessarily by trying this fix and that, and spending on parts and labor till you find the real problem? Hehehehe
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Tuesday, March 4th, 2008 AT 12:04 AM
Tiny
MASTERTECHTIM
  • MEMBER
Exactly
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Tuesday, March 4th, 2008 AT 6:10 AM

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