2001 Cadillac El Dorado Hestiation/cuts out

Tiny
TORCH1
  • MEMBER
  • 2001 CADILLAC EL DORADO
Engine Mechanical problem
2001 Cadillac El Dorado V8 Two Wheel Drive 19000 miles

Occasionaly, the engine cuts out and usually restarts itself. It happens at 40-50 mph and sometimes while idling (when it stalls at idle it needs to be restarted.) All other times it runs great. On hightway at hwy speeds it iis powerful and smooth.

Related or not? When I try to race the engine, it hesitates or pulsates. I've been told this is intentional to prevent over racing the engine.
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Thursday, December 10th, 2009 AT 12:27 PM

3 Replies

Tiny
FACTORYJACK
  • EXPERT
There is a rev limiter that kicks in around 4000 rpm. Do you have a check engine light? Regardless, have it checked for codes, and when checking, also look in freeze frame. I am suspecting you have crank sensor faults, 2001 was prime for these. P0335, 336, 385 or 386 are some possibilities for indicating a need to replace. It could be possible that this fault is random, and intermittent enough that the code(s) get dumped out of history, but will lie in freeze frame and often go unnoticed.
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Thursday, December 10th, 2009 AT 9:44 PM
Tiny
TORCH1
  • MEMBER
Thanks for prompt reply. No, the engine light does not come on.
WHat kiind of auto shop can check codes? (Other than dealer).
I assume the rev limiter is what does the pulsation when the enngine is raced while in partk?
Thanks,
Torch1
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Friday, December 11th, 2009 AT 2:38 PM
Tiny
FACTORYJACK
  • EXPERT
I have seen others post that independent parts stores(autozone, pep boys, etc.) Will check codes for free. You can check them through the on-board feature by pressing and holding 'off' and the passenger warmer rocker switch on your climate panel. The segments will light and it will display codes. As I was saying, this will not give you access to freeze frame files, nor am I sure that the parts stores can access that file either. I am a dealer technician, and I know the GM scan tool can. It is worth checking first, to see if they are in code history.

If your racing in park gets up around 4000 rpm, then yes, it is the rev limiter.
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Friday, December 11th, 2009 AT 10:44 PM

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