High idle
02-18-2006, 10:53 AM
#1
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Car: 83 Trans-Am (Recarro)
Engine: 305 4bbl
Transmission: 5 speed manual
High idle
When my car is cold, when I start it the idle is around 2000 rpm's which is normal when cold, but it takes for ever for it to drop to normal (700rpm's)when the engine is warm (220+degrees). Thats a good 15 minutes for a high idle. It wasnt always like this. It used to take a few minutes to warm up enough for the idle to drop and it didn't need to be as warm. Any suggestions?
02-19-2006, 12:47 AM
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Car: 83 Trans-Am (Recarro)
Engine: 305 4bbl
Transmission: 5 speed manual
My carb dosent have a element, it never need it.
I think its involved with the Choke themostat or the pull-off, but I don't know. Another thing I forgot about but it may or may not be related to my problem is after I shut off my car after running up to normal temp when it was cold, it backfires once. If I started it again while its warm then shut it off it won't backfire anymore. Only after it was cold.
I think its involved with the Choke themostat or the pull-off, but I don't know. Another thing I forgot about but it may or may not be related to my problem is after I shut off my car after running up to normal temp when it was cold, it backfires once. If I started it again while its warm then shut it off it won't backfire anymore. Only after it was cold.
Last edited by magadith; 02-21-2006 at 10:31 AM.
02-21-2006, 01:48 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I'd say you should check the choke heater element, it's power supply, and ground.
(The heater element is built into the choke thermostat - in fact, it is the same thing as the choke thermostat.)
(The heater element is built into the choke thermostat - in fact, it is the same thing as the choke thermostat.)
02-23-2006, 12:47 PM
#6
Originally posted by magadith
My carb dosent have a element, it never need it.
I think its involved with the Choke themostat or the pull-off, but I don't know. Another thing I forgot about but it may or may not be related to my problem is after I shut off my car after running up to normal temp when it was cold, it backfires once. If I started it again while its warm then shut it off it won't backfire anymore. Only after it was cold.
My carb dosent have a element, it never need it.
I think its involved with the Choke themostat or the pull-off, but I don't know. Another thing I forgot about but it may or may not be related to my problem is after I shut off my car after running up to normal temp when it was cold, it backfires once. If I started it again while its warm then shut it off it won't backfire anymore. Only after it was cold.
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