Question about 2003 Chevrolet TrailBlazer

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2003 trailblazer ac barely works except above 2000 rpm also compressor does not disengage unless over 2000 rpm for about a minute and lowside pressure is also high unless over 2000 rpm for about a min

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  • davidstreble Jun 24, 2009

    Yes fan works fine

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Fan clutch ok?

Posted on Jun 23, 2009

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Posted on Jan 02, 2017

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1 Answer

Can i disengage the ac compressor on my pontiac monatna


you can disengage it by not turning the AC on in the vehicle. the AC is engage by the clutch once you turn the AC on in the vehicle. as far as removing the belt from the AC, you can only do that if there is only one belt going to the AC. If you have 1 continous serpentine belt, then no. unless you go to an auto parts store and get a new serpentine belt, but tell them there is no AC on the vehicle.

Nov 24, 2012 | 2000 Pontiac Montana

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Ac pump noisy, mech says bad bearing, but can't get part


look on ebay and aadvaced auto make sure u cant get bearing ok i neede done paid 25 on ebay 100 labor install it new ac on advced auto u can see cheaper find local guy install it ok

Oct 11, 2008 | 2003 Chevrolet TrailBlazer

1 Answer

AC cycles on and off when car idles low.


The compressor should cycle on and off. Sounds like the idle needs to be set. There is a pressure sw. on the dryer that might be going bad but the plugs and wires will not cause your problem unless they are just really bad.

May 06, 2017 | 2003 Toyota Camry

2 Answers

2003 trailblazer, ac not working (compressor not coming on nor the belts turning). The outside temp gauge says it is 3 degrees F when it is actually 90+. Is this a sensor switch problem?


Mine did this once. The entire AC control panel was dead as if it was disconnected.
I made it start work again by reseating the AC fuse in the fuse box under the back seat.
Go figure...

Jun 23, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

Engine reving at low speeds when weather is hot


is the rpm changing or the sound of the engine changes,if is the sound of the engine this is normal is you're electric fan clutch. or if you're a/c temp is set to 70 or 75,then is cause by you're a/c compressor engaging and disengaging

Aug 27, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

How do I charge the ac on 2000 jaguar S-type 3.0? or better, where is the lowside located


The low side is located under the car by the A\C compressor, on the drivers side toward front of motor.

Sep 02, 2009 | 2000 Jaguar S-Type

1 Answer

Were is lowside A/C valve to add feon


It is on the right side of the firewall under the heater box in the larger of the two ac lines from the ac compressor.

Aug 05, 2009 | 2000 Ford Expedition

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Engine almost stalling when ac is turned on


you may have a faulyt IAC sensor not idling up enging when a/c is on

Jul 22, 2009 | 2003 Chevrolet TrailBlazer

1 Answer

Where is the low side service port on a 2003 grand am (6cyl)


If your talking about the low side sevice port to charge your ac, its easy to find. With your recharge kit, it comes with a nozzle to attach to this lowside port. Each port, (lowside and highside), are different diameters. The charging nozzle will ONLY fit onto the lowside port. Just run the length of your ac lines from the compressor and trace them back to the firewall. You should find both ports before you hit the firewall.

Jul 10, 2009 | 2003 Pontiac Grand Am

1 Answer

A/c rpm problem


I had the same the same problem last year took it to a AC shop everthing was fine. He said take it to the Dealership. I took it, come to find out the throttle body needed to be cleaned. It cost around $100.00. Hope this helps.

Apr 27, 2009 | 2002 Chevrolet TrailBlazer

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