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1999 Buick Skylark Car suddenly stalled and continues to do so

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1999 BUICK SKYLARK
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 48,000 MILES
1999 Buick Skylark mileage: 48,000. Car suddenly stalled and continues to do so. The service engine soon light is now on. I checked the code and got code 4, 2. Parts store won't even tell me what that indicates. Said it could be lots of things. Can you help? I thought it could be the MAP sensor or the computer.
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Tuesday, October 19th, 2010 AT 11:22 PM

1 Reply

Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,542 POSTS
Code 42 has to do with the electronic spark timing circuit. There are a number of things included in that starting with the knock sensor, the ignition coil, the pick-up coil and the ignition module. One or more of these may be faulty. Being a mechanic is never easy. Sometimes you just need to practice the old trial and error method.
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Tuesday, October 19th, 2010 AT 11:24 PM

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