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Idle Rough When A/C Turns On??

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Old 24 Nov 2010, 07:33 pm
Fresh Cruiser
Join Date: Jul 2009
Posts: 17
Default Idle Rough When A/C Turns On??

When I turn on my A/c it seems to idle a bit rougher and hesitates when I step on the gas. I have a 2003 with 96K miles on it. What can I do to fix this??
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Old 24 Nov 2010, 08:07 pm
CREWZIN's Avatar
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Join Date: Sep 2001
Location: West Central Florida
Posts: 27,734
Default Re: Idle Rough When A/C Turns On??

Rather than go over this another time, here's a few posts to read:

Rough Idle, hesitation

Rough idle while AC's on?

A/C and idle problem (hopefully the last time)

2004 Rough Idle A/C problems

Rough idle with A/C or defroster

Chrysler Repair: rough idle when stopped and air conditoner on, air conditoner, pt cruiser

2001 PT Cruiser A/C @ idle Problem
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Old 25 Nov 2010, 01:14 am
ProDigit's Avatar
Cool Cruiser
Join Date: Oct 2010
Location: Travel between Belgium and USA
Posts: 265
Default Re: Idle Rough When A/C Turns On??

Man, when it's cold in FL (winter time, below 60 outside), and I'm standing stationary, with the engine and AC on, there's smoke coming out of my AC!

At first I freaked out like crazy!
But then I remembered that sometimes the same thing happens in airplanes, where the smoke is just a cooled semi condensed water cloud.

I have no issues with my AC/engine @ idle though. Works fine, except for on hot summerdays where it barely is able to keep up!
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Old 25 Nov 2010, 11:38 am
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Join Date: Jul 2009
Posts: 17
Default Re: Idle Rough When A/C Turns On??

I tested everything and it is the fan. Does this mean the fan does not work at all or just the high speed? I have to drive it about 500 miles on a trip but will not use the A/C. Should I be worried???
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Old 25 Nov 2010, 12:21 pm
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Join Date: Jun 2009
Location: Glendale, AZ
Posts: 489
Default Re: Idle Rough When A/C Turns On??

Probably you'll be OK. Keep an eye on the coolant temperature. Bear in mind that the defroster-defogger will also turn on the air conditioner. You should be OK with that running when at road speeds.

Where do you live to use the air conditioning in Winter? OK, I admit it. I use it here, sometimes in what we call Winter.
1996 Dodge diesel 4X4, 2001 PT Cruiser Touring with rear disc brakes, [Now gone 2004 PT Cruiser Base 5 speed], 2007 Chrysler T&C Touring
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