How To Replace the AC Compressor on a GMC 1500

I recent times swapped the AC compressor on my 1995 GMC K1500 Suburban. The compressor and course of action are the same for quite a few  other Chevy and GMC trucks including the 2500 and 3500.

Replacing the AC compressor on the GM 350 motor isn't practically as tough as it seems. The compressor is held on the engine by an aluminum cradle. The cradle does not need to be taken away  to switch the compressor. You will discover simply 3 bolts that maintain the compressor to the cradle which have for being taken out.

Note that this process only covers the physical swap of your compressor, not he affiliated duties connected to servicing the AC method after a compressor failure.

Commence by eliminating the freon from your procedure. If you wish to have it reclaimed, consider it into a shop that does this.

Remove the 2 electrical connections towards the compressor.

Subsequent take away the freon lines type the again of your compressor. The manifold is held in spot by one single bolt. Mine was 15 MM.

Use a pry bar to maneuver the belt tensioner and slide the belt off. I discovered the simplest pulley to obtain the belt off of was the smooth idler beneath the compressor.

With the freon lines outside of the best way, the bolts are considerably simpler to accessibility. You will find nuts within the again and also the bolt heads are held in area by a boss on the entrance. Mine have been 9/16".

Along with the nuts eliminated the bolts might be pushed out the entrance. Nonetheless, it appears that they'll not apparent the clutch. Nonetheless, there is a flat lower on every single bolt. Rotate the flat to get next to the clutch as well as bolts will slide out. A pry bar might be made use of to receive just a trifle further clearance in case the bolt doesn't slide past easily.

On mine, one particular bolt also interfered when using the enthusiast shroud. I discovered that by taking away the bolts that maintain the shroud to your entrance header, the shroud could be moved sufficient to obtain the bolt out.

With all the bolts all out, the compressor only lifts away from the cradle.

Using the compressor out, I had to swap a strain swap that didn't have my substitute compressor. This change is held in site having a snap ring.

Before making an attempt to slide the new compressor back again to the cradle, take time to tap the bolt hole inserts all of the method to the back of your cradle. This can make inserting the completely new compressor a great deal easier. They will press again in to the appropriate  site once the nuts are tightened.

Slide the bolts back in by yet again aligning the flat place on just about every bolt along with the clutch and slide it in. Area the nuts on just about every bolt and tighten.

Reconnect the electrical connections for the compressor.

Safe the fan shroud.

Be sure the belt is routed the right way and utilize a pry bar to move the tensioner and slip the belt again in location.

Include the correct amount of oil and reattach the freon lines for the compressor.

You can now possess the technique serviced as well as the freon changed. Resource : Dodge Ram Diesel AC Compressor