Question about 2008 Chrysler 300 Limited

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My 2008 Chrysler 300 Limited has rough idle on cold starts

When cold outside it idles very rough until engine warms up. A year ago I had the water pump and Timing Belt repalced at 60,000 km and it was making the same rough idle sound before it died then. What is the probable causes now?

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  • 23 Answers

#1 - do you change your antifreeze every year? #2 - let your vehicle competely warm up before putting your engine under load. If you've got kids, go through starting the car safely step-by-step and send them out to start it - that's how my grandpa got me interested in cars!

Posted on Jan 15, 2013

  • dodgeman
    dodgeman Jan 17, 2013

    Antifreeze was changed a year ago when the water pump went...what other causes could there be?

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SOURCE: rough idle and check engine light concord

Check your EGR valve and your IAC Idle Air Control valve make sure both are functioning correctly

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SOURCE: 2001 town and country speedometer jumping/engine irratic on idle

Change speed sensor located near the gearbox.

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Check your oil dipstick for coolant, or a mucky substance. Your symptoms sound like a blown head gasket.

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SOURCE: 2000 Chrysler 300M. No start tIminig BElt???

youre probably looking at 600 to 800 dollars to have the car repaired

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fischmilch
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SOURCE: 1999 Chrysler Cirrus Lxi 2.5l high rpm

The throttle position sensor may be misaligned. This tells the computer how much throttle is being applied, and when they go bad, or come out of alignment, the idle tends to get up there. If that's not the issue, remove your air cleaner, the housing and everything until you get to the MAP sensor. Give it a good spray with carb cleaner, let it dry and replace the air cleaner with a new one. If the MAP sensor detects minimal air flow, the computer jacks up the idle to compensate.

Posted on Nov 07, 2008

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