CAR KNOCKS OFF GOING DOWN THE ROAD

1994 Oldsmobile Regency

Tiny

Spencer

December, 30, 2011 AT 8:30 AM

After it knocks off, it will not turn over when attempting to restart. Car still has full electrical power, ie, horn, lights etc, but usually it will restart and run again with no problems until the next time it repeats the pattern. Have installed new battery and all terminals are tight and secure. I am at a loss.

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3 Answers

Tiny

rivermikerat

December, 30, 2011 AT 8:36 AM

Not turning over could be a starter solenoid going bad.
Check spark and fuel pressure when the problem occurs.

Tiny

Spencer

December, 31, 2011 AT 12:04 AM

Per two other mechanics, a starter solenoid will not cause a car to knock off going down the road. I am not pleased with the response.

Tiny

rivermikerat

December, 31, 2011 AT 12:32 AM

You're right. BUT, AS MY RESPONSE STATED it will cause the engine to not turn over.

When the problem occurs, is the coil getting power? Is it generating a spark? Have you checked timing and compression? Constant oil pressure? Fuel pressure proper? Vacuum leaks? Scanned for codes? Verified codes? Checked ignition switch?

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