Idle surging when cold
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Joined: Aug 2013
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From: IA
Idle surging when cold
Now that it's getting colder in the Midwest have any of you experienced your idle bouncing on cold starts for the IS250? It does not do it immediately when you start the car but after 2-3 minutes the idle will actually go up just slightly and bounce up and down within a range of about 100 RPMS. Car drives fine and as it warms up the behavior subsides...any thoughts on this??
Rookie
Joined: Nov 2013
Posts: 65
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From: WI
Now that it's getting colder in the Midwest have any of you experienced your idle bouncing on cold starts for the IS250? It does not do it immediately when you start the car but after 2-3 minutes the idle will actually go up just slightly and bounce up and down within a range of about 100 RPMS. Car drives fine and as it warms up the behavior subsides...any thoughts on this??
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Rookie
Joined: Aug 2013
Posts: 69
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From: IA
I just thought it was odd...we have had quite a few cold days and some days the idle will actually go up and start bouncing for awhile before it begins to go down and some days it will start high and lower as it should once the car begins to warm up...maybe I should just move to a warmer climate
Driver School Candidate
Joined: Oct 2013
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From: Mb
I just thought it was odd...we have had quite a few cold days and some days the idle will actually go up and start bouncing for awhile before it begins to go down and some days it will start high and lower as it should once the car begins to warm up...maybe I should just move to a warmer climate
it's - 22 degrees up here in Canada. rpm jumps usually for a minute or so. once car starting to warm engine is fine. it usually happen once in awhile if temperature drops. also notice digital gauge slow to response on start up.
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The pursuit of F
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From: Toronto, Canada
Test the effects of having your HVAC on and off. I noticed when on, RPMs go up about 100 whether the AC is on or not. I only turn it on when the engine is at least a quarter warmed up.
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