How can I get my GM blower motor to stop squeaking?

Spin the fan half a turn and spray a little more WD-40 to get the other side. Give it a few minutes to work in while spinning the fan a few times. Now you should be able to spin the fan without the motor making any noise.

Why does my Chevy Silverado make a squeaking noise?

Repetitive squeaking indicates the belt is not running true, and prolonged squealing means that the belt is overheating. This noise is typically caused by a mechanical problem, either a worn auto-tensioner or idler pulley.

What does cold start knock sound like on Chevy Silverado?

Be aware that the radiator cooling fans may operate at any time. Cold start knock is generically called “piston slap,” which is common in Vortec engines. For the first 30 to 60 seconds after a cold start, the short-skirted pistons rock inside the cylinders and slap against the cylinder walls, sounding rather like a diesel engine.

Why does my GM blower make a screeching noise?

Now you should be able to spin the fan without the motor making any noise. If the screeching noise is still happening from your blower motor, either the noise is coming from a different part of the motor, in which case I’m little help, or you just haven’t gotten the bearing loosened from the motor shaft.

When does the GM belt Squeak go away?

For the past month or so, the squeaking is back and its getting worse, especially if there is any moisture in the air. After about 10 minutes and the engine getting up to full operating temp, the noise goes away. Its still pretty annoying. From doing some more research it seems like this is a common problem with GMs.

Why does my blower make a screeching noise?

If the screeching noise is still happening from your blower motor, either the noise is coming from a different part of the motor, in which case I’m little help, or you just haven’t gotten the bearing loosened from the motor shaft. If the later is the case, read on. If not, you may want to get yourself a new blower motor.

What are the symptoms of a bad blower motor relay?

3. Melted relay. Another more serious symptom of a problem with the blower motor relay is a burned or melted relay. Relays are exposed to high current loads and can sometimes get hot when they develop problems.

What causes a fuse to blow on a blower motor?

If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.

What does WD40 do to a GM blower motor?

Inside that nipple is a bearing that the shaft is spinning inside of and those are the two parts that seized up from drying out. By spraying WD-40 in there you may be able to free them up without having to remove the blower motor. And Here is a closer view: 3.

Is there a way to remove the blower motor?

By spraying WD-40 in there you may be able to free them up without having to remove the blower motor. And Here is a closer view: 3. If that doesn’t work, follow the steps on page one of the instructions to completely remove the blower motor. Note: use a 5.5mm socket to remove the three screws.

How can I get my GM blower motor to stop squeaking?