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CAR STARTS UP AND RUNS FINE IN PARK FOR ABOUT 30 SECONDS

Tiny
JERRYMB9
  • MEMBER
  • 1993 PONTIAC TRANSPORT
  • 165,000 MILES
THEN CUTS OFF AND THEN JUST CRANKS NO SPARK, AFTER 20 SECONDS CAR WILL START AGAIN. THE ABOVE PROBLEM WILL KEEP REPEATING SAME CYCLE UNLESS AFTER YOU START CAR AND HAVE IT IN GEAR IT WILL RUN FOR ABOUT 2 MINUTES AND THEN DIE OUT. WHEN YOU TRY TO START IT AFTER IT CUTS OFF IT JUST CRANKS /NO SPARK. IF YOU WAIT ABOUT 20 SECONDS IT WILL START BACK UP. NO CHECK ENGINE LIGHT ON. CAM AND CRANK SENSOR BOTH HAVE BIN CHANGED. PLEASE HELP.
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Friday, August 2nd, 2013 AT 11:45 AM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Have you tried jumping terminal A to B in ADLC see if there are stored codes?
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Friday, August 2nd, 2013 AT 12:06 PM
Tiny
JERRYMB9
  • MEMBER
  • 2 POSTS
YES THAT WAS FIRST THING I DID. CODE 18 REPLACED CAM AND CRANK SENSOR BUT CONDITION OF CAR HAS NOT CHANGED. WHAT WOULD YOU DO NEXT? I'M LOST
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Friday, August 2nd, 2013 AT 12:41 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Code 18 means circuit to cam/crank sensor fault not the sensor itself. Maybe connector, wirirng, fuel pump circuit, damaged sensor on harmanic balancer. Inspect sensor ring on balancer see if teeth bent/damaged and look closely at connector see if a pin is bent connector fit loose
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Friday, August 2nd, 2013 AT 12:54 PM

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