Hard Starting When Hot - Page 2 - 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 03-24-2004, 10:34 PM   #11
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I had a good spray of gas comming from the reg....didn't notice any fuel vapors coming from the vac line.........it is still hard to start when it warms up for 5 min........but runs fine no hesitation or stalling, when it finally starts...can run it and accelerate hard.....no problems
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Old 03-25-2004, 12:02 AM   #12
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Quote:
Originally Posted by Jim W
No...open up the gas cap, located the schrader valive on your fuel rail, remove that cap, get a rag and a sharp tip instrument or tool. I used a mini Philips head screwdriver and push down on the nozzle. Cover it up with a cloth, fuel comes out of there at 35-40 psi
Thanks Jim
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Old 03-25-2004, 05:17 PM   #13
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Hmmm, this is a good one. Question, is it an extended crank first thing in the morning? or how long do you have to let it cool down before it starts normally? (this is important)
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Old 03-25-2004, 07:28 PM   #14
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I had a cold start problem on a Lesabre and it was the coil packs, but yours is hot so I'm not sure if the coil packs would be an issue?
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Old 03-25-2004, 07:40 PM   #15
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It starts right away when I first start it in the morning.....I even had someone stand behind the car and look when I started it when it was warmed up, after a few extended cranks, it fires........no black smoke from flooding and no white smoke from internal coolant leak......a little worried after reading the forum about upper intakes.....

I have tried it 1 hour after shutting it off.....engine semi-cooled off and it still hard to start. Turn it off for 1 min ........it starts right away
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Old 03-26-2004, 12:03 PM   #16
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Quote:
Originally Posted by Harborcity
I have tried it 1 hour after shutting it off.....engine semi-cooled off and it still hard to start. Turn it off for 1 min ........it starts right away
Jeez... those are the exact symptoms of a leaking pressure regulator -- the restart after 1 minute is easy because it hasn't had time to really pump the vacuum line full of gasoline -- so if you've already verified that the vacuum line at the regulator is dry, then I'm stumped.
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