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cold start?

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Old 12-30-2004 | 12:20 PM
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cold start?

do our cars have cold start valves?.
Old 12-30-2004 | 12:39 PM
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Within our idle air control valve is a section for cold start, its a pellet that contracts when its cold and allows for more air flow and a higher idle. The car warms up and the pellet expands allowing the idle to drop to normal.


The IACV can get some carbon build up restricting the normal air flow, it can be cleaned out.
Old 12-30-2004 | 01:00 PM
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Originally Posted by 4thgradedropout
do our cars have cold start valves?.
Idle assy opened: http://www.cardomain.com/memberpage/748507/4

Old 12-30-2004 | 01:03 PM
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we don't have a "cold start valve" like some cars do.
some cars have a cold start valve that is really like an extra injector
Old 12-30-2004 | 01:28 PM
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hmm ok..my car has been dying 4-5 times in the morning now that it has been like 18 degrees here and my dad said it could be a bad cold start valve but he was not sure if the car has one or not
Old 12-30-2004 | 01:33 PM
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what is your idle when you first start the car in the morning (cold engine)
Old 12-30-2004 | 02:17 PM
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um ide say like 1500 or so
Old 12-30-2004 | 02:25 PM
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that's the right speed to start off with on a cold start, so your IAC is fine.
I'd check the Coolant temp sensor to proper functioning and to make sure it isn't corroded as my next step assuming you've already checked fuel pressure
Old 12-30-2004 | 03:11 PM
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Originally Posted by 4thgradedropout
hmm ok..my car has been dying 4-5 times in the morning now that it has been like 18 degrees here and my dad said it could be a bad cold start valve but he was not sure if the car has one or not
Try adding a bottle of isopropyl alcohol additive (aka water remover) (from a parts store, not from the pharmacy ).
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