Buick Rendezvous no start condition
70

Asked by Zebra May 03, 2018 at 05:21 PM about the 2002 Buick Rendezvous CX FWD

Question type: Maintenance & Repair

Cranking no start. Once this began, I scanned the car for codes and the only
one that showed up was P1189 Oil pressure switch fault. After finding that
there is no spark, I did some basic tests on the 7x crankshaft position sensor
and it showed it to be defective. I then replaced both the 7x sensor and the
24x sensor at the same time. After doing so, the coils were sparking as they
should but the car would still refuse to start. I had a shop check the fuel
pressure and they said it was good (KOEO 55psi). The shop also performed
compression and leak down tests and it passed. Just looking for a direction
to go from here. Thanks.

3 Answers
9,725

brotherben answered 6 years ago

If the coil works and there's no spark at the plugs, the problem's the distributor or in the distributor.

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70

Zebra answered 6 years ago

Thank you brotherben for the suggestion but this car does not have a distributor. I looked more into the issue and found that there was no injector pulse. After searching around, I found this video https://www.youtube.com/watch?v=apCuVMsS73U which helped me find that the camshaft position sensor was not working by repeatedly grounding the brown/white signal wire from the pcm and the car starting. After replacing the camshaft position sensor, the car starts and runs just fine.

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