Hard to start on 1st try, 2nd try almost always works - 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 09-14-2009, 11:33 PM   #11
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alright let us know.
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Old 09-17-2009, 06:18 PM   #12
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love to know the result. I went through few used regulators, didnt make any difference. Id try tapping the relay when shes off and then see if it engages will the key is in the on position
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Old 09-18-2009, 03:40 PM   #13
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The final verdict. It was the fuel pressure regulator. Once I got the correct one(there are 2 sizes and the OEM number in alldata.com doesn't fit my engine), the immediate loss of pressure is solved and she starts very quickly.

Many thanks to all for the help,

John
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Old 07-06-2011, 07:17 PM   #14
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Same problem, same fix. I was also noticing less power going up hills. My car did stall out on me once when I was in start stop traffic as well. To recap my problem: a cold start would always turn over, a warm start if left for more than five minutes would turn over hard and then die, second start on warm start would almost always work, there would also be quite a bit of engine surging on warm starts. Replaced Fuel Pressure Regulator and this resolved my issue.

Make sure you bleed off all the pressure before you take it out (or wear goggles) as I got a nice eye full of gasoline.
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Old 07-07-2011, 03:23 PM   #15
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Another possible explaination. Your car should keep fuel pressure after you turn the key off. There is a check valve either in the fuel pump or sending unit that is not closing. I think it is the sending unit. Try turning key on then wait 15 seconds . See if it starts on first try..
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