How To Change the AC Compressor on the GMC 1500

I fairly recently swapped the AC compressor on my 1995 GMC K1500 Suburban. The compressor and course of action are the very same for lots of other Chevy and GMC trucks which includes the 2500 and 3500.

Replacing the AC compressor on a GM 350 engine isn't just about as hard as it looks. The compressor is held on the motor by an aluminum cradle. The cradle does not need to be eradicated to switch the compressor. You'll find basically three bolts that hold the compressor to your cradle that have to be eradicated.

Be aware that this process only handles the physical swap of the compressor, not he involved duties relevant to servicing the AC method following a compressor failure.

Start out by removing the freon in the technique. If you want to have it reclaimed, have it to some shop that does this.

Remove the 2 electrical connections for the compressor.

Following take away the freon lines sort the back again from the compressor. The manifold is held in place by one single bolt. Mine was 15 MM.

Make use of a pry bar to move the belt tensioner and slide the belt off. I found the easiest pulley to obtain the belt from was the smooth idler underneath the compressor.

Together with the freon lines from the way, the bolts are substantially much easier to access. There are nuts to the back as well as the bolt heads are held in spot by a boss over the entrance. Mine have been 9/16".

Together with the nuts taken away  the bolts can be pushed out the front. However, it appears that they'll not clear the clutch. However, there's a flat reduce on each and every bolt. Rotate the flat to become near the clutch and also the bolts will slide out. A pry bar can be employed to acquire just a trifle more clearance should the bolt doesn't slide past quickly.

On mine, one particular bolt also interfered using the fan shroud. I found that by eliminating the bolts that keep the shroud towards the front header, the shroud could be moved enough to obtain the bolt out.

Using the bolts all out, the compressor just lifts out of the cradle.

With the compressor out, I'd to swap a strain switch that did not feature my substitution compressor. This change is held in site which has a snap ring.

Before making an attempt to slide the new compressor back again into the cradle, take some time to faucet the bolt hole inserts all the way to the back again in the cradle. This will likely make inserting the new compressor a lot easier. They will press again into the appropriate  area if the nuts are tightened.

Slide the bolts back in by once again aligning the flat spot on each individual bolt with all the clutch and slide it in. Site the nuts on each bolt and tighten.

Reconnect the electrical connections into the compressor.

Secure the fan shroud.

Make sure the belt is routed effectively and make use of a pry bar to move the tensioner and slip the belt back in area.

Add the right  quantity of oil and reattach the freon lines into the compressor.

Now you can get the procedure serviced as well as the freon changed. Resource : Chevrolet Silverado AC Compressor