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What engine temperature will the cold idle be higher? by LornesGT
Started on: 09-14-2014 09:41 PM
Replies: 3 (102 views)
Last post by: stickboy on 09-19-2014 03:54 PM
LornesGT
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Report this Post09-14-2014 09:41 PM Click Here to See the Profile for LornesGTSend a Private Message to LornesGTEdit/Delete MessageReply w/QuoteDirect Link to This Post
Is there a engine temperature at which the idle will be raised to the 1500 or so that I saw last winter? I start the car now and it goes right to low idle.
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Spoon
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Report this Post09-15-2014 11:19 PM Click Here to See the Profile for SpoonSend a Private Message to SpoonEdit/Delete MessageReply w/QuoteDirect Link to This Post
Don't hold me to this but it could be the air intake temp during open loop startup. The ATS sensor in the air cleaner box on 2.8's. Not sure at what temp the air has to be for a 1500 rpm idle. During warm weather the startup idle seems normal at 900 rpm.

If I'm wrong about this I'm sure the guru's will be along shortly with the tar & feathers.

Spoon

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edfiero
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Report this Post09-16-2014 07:41 AM Click Here to See the Profile for edfieroClick Here to Email edfieroSend a Private Message to edfieroEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'd be curious to know the answer, but my hunch is that it is based on COOLANT temp, not Air temp.
For example, I know for certain my Corvette won't lock up the torque converter until the Transmission fluid temp is about 70 degrees. Air temp doesn't matter on that. But yes I know that is apples and oranges.
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stickboy
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Report this Post09-19-2014 03:54 PM Click Here to See the Profile for stickboySend a Private Message to stickboyEdit/Delete MessageReply w/QuoteDirect Link to This Post
I'm pretty sure the high idle is based on coolant temp. Mine will idle up to near 1500 for at least a few minutes anytime the coolant is below about 80F
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