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2001 Chevrolet S-10 A/C compressor

Tiny
MDRITTER
  • MEMBER
  • 2001 CHEVROLET S-10
  • 4.3L
  • V6
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
The a/c compressor on my truck cycles off and on. Even when my air conditioner is not turned on. Is this normal and if it is not, what is the possible problem?
Tuesday, September 30th, 2014 AT 7:40 PM

5 Replies

Tiny
CJ MEDEVAC II
  • MEMBER
  • 222 POSTS
ANY HEAT SETTING THAT HAS "DEFROST" IN THE MIX WILL MAKE THE COMPRESSOR COME ON TO REMOVE MOISTURE FROM THE AIR THAT IS BLOWN ONTO THE WINDSHIELD

DOES IT DO IT WITH EVERYTHING TURNED OFF?

ARE YOU SURE IT'S CYCLING AND THE CLUTCH IS (MESSED UP) DRAGGING THE COMPRESSOR TO TURN HERE AND THERE? (NOT AN ACTUAL "ON" AND "OFF" ACTUATION)

THE MEDIC
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Tuesday, September 30th, 2014 AT 8:34 PM
Tiny
CJ MEDEVAC II
  • MEMBER
  • 222 POSTS
WOW!

DEJA VU!

THE MEDIC
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Tuesday, September 30th, 2014 AT 8:38 PM
Tiny
CJ MEDEVAC II
  • MEMBER
  • 222 POSTS
DISREGARD THAT LAST ONE, I WAS ON THE WRONG QUESTION!

THE MEDIC
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Tuesday, September 30th, 2014 AT 8:39 PM
Tiny
MDRITTER
  • MEMBER
  • 2 POSTS
Here's what the pulley on the compessor is doing. With everything turned off and the truck running. You can see and hear the clutch on the the compessor pulley engage. It will turn with the pulley a minute or so and then disengage.
It does this as long as the engine is running. Off for a minute or so and then on for a minute or so.
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+1
Wednesday, October 1st, 2014 AT 4:40 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If it cuts off and on then it may be the relay is stuck check the fuse box undrhood it's marked.
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Wednesday, October 1st, 2014 AT 6:45 AM

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