Car knocks off going down the road

Tiny
SPENCER
  • 1994 OLDSMOBILE REGENCY
  • 150,000 MILES

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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Friday, December 30th, 2011 AT 8:30 AM

3 Replies

Tiny
RIVERMIKERAT
  • MEMBER

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

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Friday, December 30th, 2011 AT 8:36 AM
Tiny
SPENCER
  • MEMBER

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.

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Saturday, December 31st, 2011 AT 12:04 AM
Tiny
RIVERMIKERAT
  • MEMBER

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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Saturday, December 31st, 2011 AT 12:32 AM

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