1995 Saturn SL1

Tiny
LADAGE22
  • MEMBER
  • 1995 SATURN SL1
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
I have a 1995 saturn sl1 and I just did a head job on it and it went great car runs good. But when I turn on my air conditioner its works fine until I put the car in gear and then it starts kocking until I give the car some gas and then it gos away until I stop. Why would this happien. Thanks james
Friday, July 30th, 2010 AT 7:50 PM

6 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
What's knocking the A/c compressor or the engine?
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Friday, July 30th, 2010 AT 7:58 PM
Tiny
LADAGE22
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  • 5 POSTS
I dontknow I think its the engine could it be the comperssor
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Friday, July 30th, 2010 AT 8:44 PM
Tiny
LADAGE22
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  • 5 POSTS
I dont know I think is the engine the ideling speed drops from 700 rpm to 500 rpms when I put the car in drive
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Friday, July 30th, 2010 AT 8:46 PM
Tiny
SATURNTECH9
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So if the a/c isn't on does it knock in gear?Also can you hear any squealing noise like the belt squealing when you hear the knocking and hit the gas and it goes away?
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Friday, July 30th, 2010 AT 9:50 PM
Tiny
LADAGE22
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  • 5 POSTS
The belt is new and its like a knock from the engine or
transaxle. No if the ac is not on it does not make the nosie in gear.
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Friday, July 30th, 2010 AT 10:37 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Your going to have to be under the hood and listen for the knocking noise while someone start's the car and put's it in gear with the a/c on. It sound's like it's the belt tenisor or the a/c compressor knocking.
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Saturday, July 31st, 2010 AT 7:55 PM

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