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1997 Geo Prizm belt noise and cutting off

Tiny
USCAMBER3486
  • MEMBER
  • 1997 GEO PRIZM
  • 220,000 MILES
On Friday evening when I crank my car up it started making a squealing noise like a loose belt. I was trying to get home so I drove it. When I slowed down to see if a car was coming it cut off on me. I put the car in park and it crunk right back up. It showed no more signs of problems until today, Monday. I crunk my car up and it started making the noise again like a belt but not as loud this time. I again slowed down to see if a car was coming and it wanted to cut off. I gave the car gas and it took off without cutting off however black smoke came out of the tail pipe. Any ideas on what it could be?
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Monday, June 24th, 2013 AT 3:54 PM

4 Replies

Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
First, vsually inspect the belts to see if there is any damage.

Was the a/c on when you started the vehicle and heard the noise? If so, start the car again to see if the noise is there, if it is turn the a/c off an see if it has an effect on the noise.

If the noise stops when the a/c is off, suspect a loose a/c belt or a failing a/c compressor clutch.
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Monday, June 24th, 2013 AT 5:26 PM
Tiny
USCAMBER3486
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  • 2 POSTS
But what would that have to do with the car wanting to cut off? I have checked my belts and they look fine
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Monday, June 24th, 2013 AT 6:08 PM
Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
If the a/c compressor clutch goes bad it places a hugh strain on the engine as it is trying to turn a part (compressor clucth) which is stuck. If the engine is small enough, this strain usually causes the engine to lose rpm's or stall.
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Wednesday, June 26th, 2013 AT 7:52 AM
Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
In addition to my previous response; you may well have two seperate problems.

If the a/c compressor clutch is OK check the idler pulley and other pulleys for the source of the noise.
Check the tension on the longest length of the belt; there should be no more than one-half to one inch (1.25 centimeters to 2.5 centimeters) of give.

The stalling could also be atributed to a dirty throttle body. It should be cleaner using carb/throttle body cleaner [once the air snorkle is removed].
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Wednesday, June 26th, 2013 AT 8:09 AM

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