Topic: Engine suddenly stopping/stalling
in Forum: C3 Engines
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Hello,
My name is Raymond Rodriguez and I have a 1982 Corvette. Last year I used a concentrated formula of injector cleaner on my car. Needless to say it started stalling and stopping at the most inopportune times.
I placed a second application at it helped a little. However, this year it seems to have gotten worse. Has anyone had a problem of this type before? If so what did you have to do to rectify the problem? At this point I am ready to pull the throttle bodies and see if they are clogged.
Any guidance will be appreciated. Thank you for your time.
My name is Raymond Rodriguez and I have a 1982 Corvette. Last year I used a concentrated formula of injector cleaner on my car. Needless to say it started stalling and stopping at the most inopportune times.
I placed a second application at it helped a little. However, this year it seems to have gotten worse. Has anyone had a problem of this type before? If so what did you have to do to rectify the problem? At this point I am ready to pull the throttle bodies and see if they are clogged.
Any guidance will be appreciated. Thank you for your time.

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Raymond
I also have an 82 coupe. It runs rough when first starting. My mechanic says I need to rebuild the throttle bodies, I use 93 octane Mobil fuel and have used injeector cleaners that seemed to help. Take off your air cleaners and run some carb cleaner through the system while the engine is warm and at idle. I found that that help out quite a bit. Also check your air filters as thaLet met chokes out the air going in.
Let me know how you make out.
I also have an 82 coupe. It runs rough when first starting. My mechanic says I need to rebuild the throttle bodies, I use 93 octane Mobil fuel and have used injeector cleaners that seemed to help. Take off your air cleaners and run some carb cleaner through the system while the engine is warm and at idle. I found that that help out quite a bit. Also check your air filters as thaLet met chokes out the air going in.

Thank you Jim for your reply. As you know the 1982 was the first car that had fuel injection (since the last ones in the 60's). This was the "new" electronic fuel injection that GM was placing in Corvettes. Not only were the 82's the first to be built at Bowling Green they now had a new system called "cross fire injection". The electronics was the culprit in my case.
The first sensor to go was the coolant. It actually had a bare wire and was shorting out against the water pump. You couldn't see the bare wire as it was underneath. Removal was necessary to see it. This condition in turn started a domino effect on all the sensors. The worse one was the O2. It was totally carboned up. The ECU (Electronic Control Unit) didn't know what to signal to the injectors. One minute a rich mixture the next a lean mixture, and at times no mixture. I also had wiring problems and arcing within the ignition system. I am most fortunate that the car even ran!
Everything has been repaired now (at a VERY RELIABLE) Corvette shop and the car is running better then ever. The vehicle was thoroughly inspected and everything is good - including my throttle bodies. I did loosen some crud in my fuel system when I used the concentrated cleaners, so my fuel filter was a little clogged up. However that wasn't my real problem. So if you or anyone else should encounter this type of problem, have a diagnostic check made on your car especially if the "check engine" light comes on. The computer is flashing the codes (fault) at that time. The ECU may be old technology but a good technician will still obtain the codes.
I really can't complain too much about this situation as the sensors replaced in my car were ALL OEM. Not bad for a 21 year old vehicle. Now I have all the latest electronics. Like I said the car runs SUPER. Again thank you very much for responsing to my original inquiry.
Regards
Raymond J. Rodriguez

The first sensor to go was the coolant. It actually had a bare wire and was shorting out against the water pump. You couldn't see the bare wire as it was underneath. Removal was necessary to see it. This condition in turn started a domino effect on all the sensors. The worse one was the O2. It was totally carboned up. The ECU (Electronic Control Unit) didn't know what to signal to the injectors. One minute a rich mixture the next a lean mixture, and at times no mixture. I also had wiring problems and arcing within the ignition system. I am most fortunate that the car even ran!
Everything has been repaired now (at a VERY RELIABLE) Corvette shop and the car is running better then ever. The vehicle was thoroughly inspected and everything is good - including my throttle bodies. I did loosen some crud in my fuel system when I used the concentrated cleaners, so my fuel filter was a little clogged up. However that wasn't my real problem. So if you or anyone else should encounter this type of problem, have a diagnostic check made on your car especially if the "check engine" light comes on. The computer is flashing the codes (fault) at that time. The ECU may be old technology but a good technician will still obtain the codes.
I really can't complain too much about this situation as the sensors replaced in my car were ALL OEM. Not bad for a 21 year old vehicle. Now I have all the latest electronics. Like I said the car runs SUPER. Again thank you very much for responsing to my original inquiry.
Regards
Raymond J. Rodriguez



in Forum: C3 Engines
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