Car wont start cold! - 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 11-18-2005, 01:30 PM   #1
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Default Car wont start cold!

My friend has a 92 Se and it wont start in the morning when its really cold out. HE just had the crank shaft sensor replaced because it would on the road while in use when i let off the gas... SO thats when they said the crankshaft sensor was bad. The new dilema is that it wont start cold and im trying to figure out what that could be. It has about 181K on it. The car will start after it gets warmer out like during the day. Any feedback is appreciated thanks
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Old 11-18-2005, 01:34 PM   #2
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Can you hear the fuel pump click on when he turns on the key? If so, check the fuel pressure without the car running and see what you have. You should have about 42 lbs. of pressure.

If there'* no pressure then I would start by replacing the fuel pressure regulator. Then, recheck your pressure. Still no pressure at that point, then I would be looking to the pump.
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Old 11-18-2005, 01:39 PM   #3
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Does it crank strongly? Or no crank?
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Old 11-18-2005, 01:44 PM   #4
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HE says it cranks somewhat light i guess almsot a feel of a low battery he told me. I havent seen it myself just yet. Idk about fuel pump though because it will start durign the day just not the cold brisk morning. It will also stay running after he gets it started now...
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Old 11-18-2005, 01:50 PM   #5
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could be many things.

IAT sensor thinking it'* warmed up. Although I think the fail postion would be cold start.
Fuel pressure. Has the filter ever been changed?
Battery..must have enough power to start.

When he gets it started, how does he do it? Does he jump start?
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Old 11-18-2005, 01:54 PM   #6
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IDk about fuel filter or pressure yet and no he doesnt need a jump.... It start in warmer weather without a jump its werid. HE did kinds dria nthe battery cranking it a 1000 tiems this morning tho...
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Old 11-18-2005, 01:58 PM   #7
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I wonder if a wire or something is not making contact when cold. Therefore when it warms up the heat expands and it works fine.
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Old 11-18-2005, 02:21 PM   #8
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Chemical batteries don't like cold. From the info you have provided I would look towards that route first. Especially since you said it cranks differently depending on temperature
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Old 11-18-2005, 04:15 PM   #9
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No it doesnt really crank differently only difference lol is that it will start when cranked afer it gets "warmer" always cranks the same amount i suppose. I am going to look at it for him and then I will have more info for you guys
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Old 11-18-2005, 04:24 PM   #10
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Jay...keep us up to speed. And if possible check fuel pressure, spark, connections of battery cables etc.

All the usuals.
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