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A/C or cooling fan causes low idle

Tiny
RENOOPS97
  • MEMBER
  • HONDA ACCORD
My '94 accord ex has 97k mi. And the A/C blows cold now since I had it charged. They found no leaks, but the frion was low. Since then, with A/C on and when the cooling fan turns on, idle drops from 700 to 4-500 and is rough. Also, occasionally while driving and during idle, there is a growling/low vibration for brief periods which seems to be coming off of the right side of the engine (glove box). I realize these may be separate issues, but what should I check first? I don't think the car has had a tune up in a while. Should I start with that?

Thanks,
Alan
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Thursday, May 3rd, 2007 AT 9:06 AM

3 Replies

Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
First of all there is a leak of the freon but it might be small. Second, the sensor that senses the kick on of the A/C might be failing as it is supposed to tell the computer to raise the idle speed to compensate for the draw by the A/C.
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Thursday, May 3rd, 2007 AT 11:57 AM
Tiny
GARGI45
  • MEMBER
  • 7 POSTS
I have the same problem, where is that sensor located
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Sunday, May 6th, 2007 AT 10:19 PM
Tiny
GARGI45
  • MEMBER
  • 7 POSTS
The sensor that senses the kick on of the A/C where can I find
it
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Saturday, June 16th, 2007 AT 2:34 PM

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