why does it shut off repeatedly when its hot out? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-16-2010, 07:48 PM   #1
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Talking why does it shut off repeatedly when its hot out?

i dont get it.explain vapor locking.when its hot out it will shut off repeatedly.let it sit for 5 and she fires right up.sooooo frustrateing in traffic.have pulled the thermostat to try and buy sum miles.fresh radiator and coolant.
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Old 07-16-2010, 08:21 PM   #2
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Could also be the fuel pump resistor. When it gets hot it shuts down the fuel pump. Easy way to check that is to override the relay and make the pump run in high mode. If you have a fuel pressure tester, try to monitor the fuel presser and see if it drops off.
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Old 07-17-2010, 02:18 PM   #3
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maybe u could tell me how to do that? : )
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