hard to start below 50F
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Joined: Mar 2009
Posts: 133
Likes: 2
From: 10K miles away from home (SF, CA)
Car: 1991 CHEVROLET CAMARO Z28
Engine: 6 LITER after rebuilding :)
Transmission: 700 R4
Axle/Gears: 3.23 / 9:7:1
hard to start below 50F
It only starts when I press the accelerator when the weather is below 50F or so... Above that temp, no problem whatsoever. If I don't throttle slightly for a few seconds, it stops but once I throttle slightly for 15-20 seconds, it picks up and if I drive it immediately, it idles perfectly OK within 100 yards. Odd as it gets (to me anyway)... ALL sensors/switches have been changed within the last two years and I am suspecting a failing IAC. Any ideas from those of you who had the same problem? Thanks in advance...
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iTrader: (1)
Joined: Jul 2009
Posts: 65
Likes: 0
From: Portsmouth, NH
Car: 1990 Camaro Irocz
Engine: 350ci
Transmission: 700r4
Axle/Gears: 3.23
Re: hard to start below 50F
Im having the same problem except I have an '88 L98. I'm thinking its the MAF but yours is speed density, so not sure on your end. Map sensor maybe?
Joined: Jan 2009
Posts: 139
Likes: 7
From: Howell, NJ
Car: 94 Camaro
Engine: 3.5 turbo
Transmission: Performabuilt 4l60E
Axle/Gears: Strange rear, 3.42
Re: hard to start below 50F
Pull the spark plugs. They're probably carbon fouled from all the cold starts.
Might be time to replace. A good throttle body cleaning, idle control motor and check all the plug wires and air filter.
Might be time to replace. A good throttle body cleaning, idle control motor and check all the plug wires and air filter.
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92camaroJoe
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Aug 13, 2015 06:07 AM





