Cold Engine + Cold Tires = Runs like crap! - Pontiac GTO Forum
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post #1 of 15 (permalink) Old 12-26-2005, 04:09 PM Thread Starter
 
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Cold Engine + Cold Tires = Runs like crap!

Wanted to see if others are experiencing this with their LS2 M6's. I normally let the engine warm for 2-3 minutes before driving then when I go, engine says "no". The temp guage still shows cold until I drive another 2-3 minutes. I'm not trying to punch it either, just normal steady acceleration. I did not notice this in warm weather (above 60F) as much but seem to be noticing it with 35-50F outside temps. There is just no power and acceleration is not smooth. It seems like the engine is holding back. (Note, i do not have an air intake, etc yet).

An additional issue I am having is with the BFG T/A tires. When the car sits overnight and until I drive 2-3 miles to get the tires warmed, the car feels like a truck with unbalanced tires.

Between the engine and tires, the first 5 minutes of my commute are rather unpleasant.

Any input or suggestions? Thx in advance.
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post #2 of 15 (permalink) Old 12-26-2005, 04:14 PM
 
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ya i have had same thing with my auto sometimes when its like 50-60 degrees in the morning it seems slower and the tires just plain suck!!!
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post #3 of 15 (permalink) Old 12-26-2005, 04:35 PM Thread Starter
 
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Hey GoatMan. Well, I would say that I'm glad to hear you are having the problem too...but. I guess the LS2 just needs more warmup time. For the tires, maybe I will get some heated little pink tire booties to keep the rubber warm and tires from thumping. *gag*. For the record GM...BFG 400 treadwear tires on my GTO SUCK! Please put some real tires on future goat owners cars. At least it is a fixable problem.
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post #4 of 15 (permalink) Old 12-26-2005, 04:43 PM
 
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Quote:
Originally Posted by Russ2005
Wanted to see if others are experiencing this with their LS2 M6's. I normally let the engine warm for 2-3 minutes before driving then when I go, engine says "no". The temp guage still shows cold until I drive another 2-3 minutes. I'm not trying to punch it either, just normal steady acceleration. I did not notice this in warm weather (above 60F) as much but seem to be noticing it with 35-50F outside temps. There is just no power and acceleration is not smooth. It seems like the engine is holding back. (Note, i do not have an air intake, etc yet).

An additional issue I am having is with the BFG T/A tires. When the car sits overnight and until I drive 2-3 miles to get the tires warmed, the car feels like a truck with unbalanced tires.

Between the engine and tires, the first 5 minutes of my commute are rather unpleasant.

Any input or suggestions? Thx in advance.
I've never had that problem with my LS2
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post #5 of 15 (permalink) Old 12-26-2005, 04:55 PM
 
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My car does what sounds like dieseling when cold. Not quite knocking, but like a diesel driven at very light throttle. After a very short time, it sounds normal, but I wait for the temp guage to read normal operating temp before getting on it. Eventually, I'm getting an oil pressure or temperature guage, and a volt guage.
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post #6 of 15 (permalink) Old 12-26-2005, 05:10 PM Thread Starter
 
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Good 2 Go. I agree. That sounds like what I experience also.
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post #7 of 15 (permalink) Old 12-26-2005, 05:12 PM
 
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Quote:
Originally Posted by Good 2 go
My car does what sounds like dieseling when cold. Not quite knocking, but like a diesel driven at very light throttle. After a very short time, it sounds normal, but I wait for the temp guage to read normal operating temp before getting on it. Eventually, I'm getting an oil pressure or temperature guage, and a volt guage.
Mine sounds exactly like you describe until it warms up. I think it is piston slap, my LT1s do the same thing but sound different maybe the difference is that the block is aluminum on LS2

2005 GTO, M6, Quicksilver / Black
2003 GTP, Silver / Black, 3.4" Pulley
1994 Z-28, Red, M6, Hotcam, SLPs, Tune
1994 Z-28, Red, M6, stock
1994 Cadillac STS
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post #8 of 15 (permalink) Old 12-27-2005, 06:32 AM
 
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My LT1 used to have a slight knock when cold. I always thought that was piston slap. My LS1 didn't do any of that, but it made different sounds. Prolly had a spun bearing, I could hear metal-to-metal thrashing from right around the front of the block. Wasn't super loud, but enough that I was aware of it. At that point, it had over 100,000 miles on it, so I didn't worry 'bout it. She still ran stout!
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post #9 of 15 (permalink) Old 12-27-2005, 07:17 AM
 
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no problems like that with my ls2 or tires
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post #10 of 15 (permalink) Old 12-28-2005, 01:00 PM
 
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I havn't had either of those problems, and here in Germany, they have a law that you aren't allowed to leave your car idle for more than 30 seconds. Otherwise, you could get a ticket.
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