97 Dodge Stratus rough idle...help needed!

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cwl - 31 Jul 2007 16:20 GMT

I have a 97 Stratus. When at a stop sign or red light it idles rough.
If you put the transmission in neutral it smooths right out. If you
leave it in drive...let it idle rough...it smooths right out when you
step on the gas and take off.

Any suggestions?

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Comboverfish - 31 Jul 2007 20:12 GMT

> I have a 97 Stratus. When at a stop sign or red light it idles rough.
> If you put the transmission in neutral it smooths right out. If you
> leave it in drive...let it idle rough...it smooths right out when you
> step on the gas and take off.
>
> Any suggestions?

If you are complaining of a vibration you can feel, then it could
possibly be worn, sagging engine mount(s) transmitting excess
vibration through the chassis.

If it truly is a poor idling engine -only in drive- then you may have
a problem with the park/drive input to the PCM or an ISC issue.

Toyota MDT in MO

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scott21230@gmail.com - 02 Aug 2007 16:46 GMT

Check for vacuum leaks. Not just hoses, check everything that uses
vacuum. I use a MityVac for this.
Clean the IAC and throttle body. Clean the MAF sensor.

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