Winter coming, another cold start idle problem. - Page 6 - 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 01-26-2005, 12:33 PM   #51
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Someone must have complained to GM service on this issue.
There must be something written up on this for techs.
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Old 01-26-2005, 12:49 PM   #52
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Why is cold idling @ 1500RPM a problem or issue? Do you not like it that high when idling, i don't know if i would call 1500 RPM free racing.

I still maintain my belief that, it'* idling like that to protect the engine incase a few things go wrong. It'* harder to kill, keeps oil pressure up on cold starts, and helps warm up the engine. Any extended idling past an open loop is pointless, and can only cause uneccessary wear.
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Old 01-26-2005, 01:26 PM   #53
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Quote:
Originally Posted by BonneMeMN
Why is cold idling @ 1500RPM a problem or issue? Do you not like it that high when idling, i don't know if i would call 1500 RPM free racing.

I still maintain my belief that, it'* idling like that to protect the engine incase a few things go wrong. It'* harder to kill, keeps oil pressure up on cold starts, and helps warm up the engine. Any extended idling past an open loop is pointless, and can only cause uneccessary wear.
The point is that it'll do it indefinitely. The temp guage can be at 195 degrees and it'* still racing at 1500 RPMs...for no reason.

I can understand it reving when cold to protect the engine. But when it'* been running for 15 minutes, warmed up and sitting at 1500 RPMs, I'm not convinced that'* normal.
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Old 01-26-2005, 09:15 PM   #54
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Since the temps. here in Northern Va was hovering around 0* F Just this past weekend the car has been hard to start. Not only that but, after having a snowstorm come through the car just started acting funny. Normally the car will automatically slow down in RPM'* and stay at a decent idle, but here lately the car after it warms up the Service Engine light comes on and doesn't idle right. The RPM'* will drop down and then it will correct itself and after about three times of trying to keep itself running it shuts off. When it restarts it starts up fine. What might be the problem here?
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Old 01-26-2005, 09:41 PM   #55
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Quote:
Originally Posted by Taylora
Since the temps. here in Northern Va was hovering around 0* F Just this past weekend the car has been hard to start. Not only that but, after having a snowstorm come through the car just started acting funny. Normally the car will automatically slow down in RPM'* and stay at a decent idle, but here lately the car after it warms up the Service Engine light comes on and doesn't idle right. The RPM'* will drop down and then it will correct itself and after about three times of trying to keep itself running it shuts off. When it restarts it starts up fine. What might be the problem here?
You should have started your own thread for this.

But, get your codes read, first. There'* a procedure in Tech Info to retreive the codes.
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Old 01-29-2005, 10:21 AM   #56
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Spent some time at the dealer yesterday looking up TSB'* on this problem
and came up blank. My tech friend there said to try heating up the front
temp sensor in front of the radiator before starting it and see if that solves it.
If it works its probably in the design of the car. and 1500 isnt that high of RPM
to just pop in gear and go.
My problem is its TOO Cold to do anything on the car in this sub zero weather.
I think I'll just drive..............
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Old 01-31-2005, 08:30 PM   #57
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I actually found out the problem. Come to find out it was the Oxygen Sensor had gone bad. If any of you guys out there have any problems with the car (warmed up) and your RPM'* are jumping around and then shuts off you might want to check the Oxygen sensor first before the Idle Air Contoller which is about $90.00 while the O2 sensor is only $20.00
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