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92 BUICK 350 WILL NOT RUN WARM

Hi.......What could the problem be?

92 BUICK 350 WILL NOT RUN WARM

1992 BUICK Roadmaster Limited Sedan 350 TBI

Will not operate when warm. No prior problems.

1.) Started while warm, died when put in gear.

2.) Restarted, died in gear, restarted, died in gear,

restarted, kept rpms high to drive home while

it tried to quit if rpms were allowed to drop.

3.) After parking at home would not start at all.

4.) After disconnecting battery for one minute car

started (cold) and idled properly for five minutes.

5.) After shutdown warm, would not restart.

6.) After disconnecting battery for one minute car

started (cold) and idled properly for four minutes

until beginning to warm up, then quit.

7.) The only diagnostic code is 12.

Thanks, Wendy Ardans

Reply to
Shaherah
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Sounds like a bad crank trigger/magnetic pick up. Over time the magnets get weak, and will not always read correctly. Really there isn't a good test for it. It's a low cost part that is better to replace. Charles

Reply to
Charles Bendig

Sounds like something with the electrical system.

B.C.

Reply to
Black Cars

Ignition: could be coil.

Or could be crank/cam sensors.

This one is a job for a dealer diagnostic machine.

Ted

Reply to
Ted Mittelstaedt

It's more than likely the ignition module under the distributer cap failing when hot. When replacing the new one make sure to clean away the old thermal grease and install fresh grease. HTH

Reply to
Sean

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