Question about 1991 GMC Sierra

1 Answer

1999 GMC Sierra a/c clutch replacement

Is it possible to replace a/c on this pick-up without having to remove a/c compressor? Looks possible...not sure though. Compressor is working great, hate to remove it if not needed. I know that I need the special removal/install tool, just wasn't sure if I could do it with compressor installed. thanks

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 21 Answers

You can buy a puller for this,and i think it can be done in truck

Posted on Jul 12, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1999 GMC air cond. AC clutch wont engage. system is charged. relay, fuze,and low pressure switch are replaced.

ac compressor clutch coil open or short. wire cut or open to ac clutch.2 wires one is ground the other power, remove connector ac compressor then probe with test light between the two wire

Aug 05, 2013 | 2003 GMC Sierra 1500

1 Answer

My GMC Sierra's air conditioning works great but the driver side vents will spontaneousely start blasting out hot air. The passenger side continuse to blow cold air. If iI turn the truck off and...

  1. Air conditioner system is discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
  2. Air conditioner compressor clutch not engaging. Check compressor clutch wiring, electrical connections and compressor clutch, and repair or replace as necessary.

May 24, 2011 | 2005 GMC Sierra

2 Answers

How to remove the a/c clutch from a 1998 gmc sierra 1500 5.7 l

I believe this AC compressor is the same as my '95 Astro. The clutch is pressed on to the compressor shaft. You should see a threaded hole in the center of the clutch and a threaded screw in the center of that hole. To get this off you have to have the proper puller. It threads into the clutch and has a screw that you tighten against the end of the screw in the clutch. This pulls the clutch off the compressor (maybe, if it isn't frozen to the shaft). FYI, I just replaced my AC compressor and found that a new compressor with a new clutch was only about $40 more than the clutch alone. The puller cost $30.) Of course, if you replace the compressor you have the work of some parts in the AC system and recharging it. There are some good web sites with good pictures and instructions you may want to look into before you decide. I found that when I replaced the compressor, I had to replace the accumulator and compressor oil and there is some question about flushing the AC system when you install a new compressor. Hope all this helpful. Good luck.

Apr 22, 2011 | 1998 GMC Sierra

1 Answer

I have a 1998 GMC Sierra. v-6 vortex. I get a real loud noise which seems to come from the a/c come from the compressor. It doesn't change when the a/c is on or off. The sound sounds like bearings on a...

The noise is your A/C pump clutch bearings. You can have the clutch replaced or possibly buy the belt for the truck that didn't come with A/C and it may fit without routing it around the pump pulley. If you leave it, the bearing will eventually fail and the belt will shred. You'll lose power stearing, cooling and charging...not good.

Sep 14, 2010 | 1998 GMC Sierra

1 Answer

"How to remove and replace a AC Clutch on a 1994 GMC Sierra 5.7?"

depending on witch compressor you have they all are very straight forward , just remove the screws that hold the out side plate to the electric clutch and find the screw that holds everything together in the center ,remove it and it should slide out with no problem. get a replacement and install it the reversed way

Aug 05, 2010 | 1994 GMC Sierra

1 Answer

The electrical connector on the a/c unit broke off. Do I need to replace the entire a/c unit or the clutch assembly or what?


Jun 18, 2010 | 1993 GMC Sierra

1 Answer

1999 gmc sierra 2500, transmission slipping, no 2nd, 3rd or reverse

1st and 3rd only, no 2,4 or R; sun shell is fractured or splines are sheared off. Transmission must be removed to fix the problem and may have to be rebuilt or replaced.. Try not to run or drive the car or further damage could result.

Slow, slipping or no reverse: “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sun-shell. It is possible to remedy a fluid problem by removing the check-ball from its cage in the case in the rear of the trans may help (must remove valve body), or adding a high-viscosity additive such as Lucas Transmission additive or other seal restorer product. May also have worn boost valve (can replace in the pan).

Jan 10, 2010 | 1999 GMC Sierra

1 Answer

I have a 1999 GMC 3/4 ton truck. My air conditioning doesn't work

if it is low on freon the compressor will have 0 volts becuase the low pressure switch on the evaporator isn't triggering...if you have freon then replace the low pressure switch...take a small piece of wire and disconnect the low pressure switch and jump the two sides of the plug together...compressor should come on

Jun 04, 2009 | 1999 GMC Sierra

1 Answer

Need to get information on how to install an air conditioing clutch on 1996 gmc pickup

you will need a feeler guage a clutch removal and installer tool 1rst measure with guage the space between the pulley and front of compressor then with removal tool available at napa carquest ect,, remove carefull not to lose little spacers behind clutch reinstall spacers and measure after tightening i think i can walk you through it via live support

Mar 13, 2009 | 1999 GMC Sierra

1 Answer

1999 GMC Sierra a/c clutch replacement

Sounds like it is more likely the high pressure switch on the accumulator acting up (a common issue with older vehicles). To verify this, try putting 12v on the clutch with a jumper (but only for a few seconds each time) to see if it engages. If it is the pressure switch, you may have to replace it and the schrader valves as well.
If the problem is an electrical connection in the clutch, yes, it can be replaced without removing the compressor but that must be done very carefully.

Jun 13, 2017 | GMC Sierra 1500 Cars & Trucks

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

225 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77939 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides