Question about 2008 Buick LaCrosse CXL

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Cranking but won't start? - 2008 Buick LaCrosse CXL

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GM issued two service bulletins addressing this. One is the reluctor for the crankshaft sensor may have moved. The other is replacing high feature timing chain kits and guides.

Posted on May 03, 2015

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Lots of causes possible:
1- No sparks - Pull out
one of sparks wire and keep it close to the body of the car and see if it sparks while starting?
2- Gas pump: rotate the start switch but do not start the car. Let lights on dash board turn on. Do you hear some noises from fuel tank side? No? Maybe pump is dead.
3- Gas-Air mixture not normal. Mostly in old cars, but can temporarily cause new cars not iginite.
4- Timing Belt: If broken inside, valves wont open and close. In some engines starting will damage engine if timing belt is broken. Be careful.
5- Water in a fuel tank.

Good luck

Posted on Mar 22, 2015

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Posted on Jan 02, 2017

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