Is the fan speed set or intermittent on a Silverado Sierra?

Just the blower is intermittent, not the compressor. Fan speed does not have set speeds, it’s more like a rheostat. It has the rotary control.

Why is my blower not working on my GMC Sierra 1500?

The connector that plugs into the blower motor under the glove box became too hot and melted the plastic resulting in the a/c and heat not to work (this includes the windshield defroster).

When did my GMC Sierra air conditioner stop working?

I had a 2001 GMC Sierra that did this when truck was less the one year old (summer of 2001 is when it was). The dealer had the truck in the shop idling for a long time and the A/C worked perfectly. I told them to take it for a ride and see. So the service manager in an effort to convince me nothing was wrong went for a ride with me driving.

Where does the air come from in a GMC Sierra?

This 2005 GMC Sierra came in with the complaint that the air will only flow from the defroster vents, regardless of where it is commanded to. This Sierra has auto a/c controls and no floor mounted center console.

Why does my Silverado fan only work on 3 + 4?

I have an 01 Silverado and the fan only works on 3+4, so a solution would be very helpful if anyone knows one, thanks It’s probably a bad blower motor resistor. I would replace the blower motor as well. Usually what happens is the blower motor gets worn bearings/bushings and pulls too many amps, which in turn burns the resistor out.

The connector that plugs into the blower motor under the glove box became too hot and melted the plastic resulting in the a/c and heat not to work (this includes the windshield defroster).

Are there any problems with my GMC Sierra 1500?

See all problems of the 2004 GMC Sierra 1500 . The contact owns a 2006 GMC sierra. While driving approximately 45 mph, the contact noticed a burning odor. She then noticed that the blower motor on the wiring harness melted, causing the vehicle to smoke.

What to do if your Silverado blower won’t work?

Head under the hood and check the blower motor wiring to make sure it is getting power to it. If it is, then your only option is to remove the blower motor and have it tested or replaced. You can do so yourself if you have the equipment, or have it done at the dealership or parts store. Figure 3. Silverado blower motor and fan assembly.

What’s the problem with my blower motor fan speeds?

Probably a bad blower motor resistor you have there, or possibly a faulty blower motor or switch. The most common thing would be the resistor assembly, as that goes out more often than the other parts. A quick check with a test light can determine failure. No Heat In My 2000 Chevrolet Malibu – Blower Not…

Why is my Silverado Sierra blowing cold air?

After fiddling with the controls a bit I gave up and rolled the windows down. About five minutes later it was eating at me so I switched the control from off to max and the fan kicked on like it was supposed to and was blowing cold air.

Why is my blower not working on speed 5?

If your blower is not working on speed 5 then the blow motor resistor (I think its called that) is burnt and you need a new one. It is a 5 minute fix.

Why does the a / C blower slow down when the RPMs go up?

Why does the a/c blower slower down when the rpms go up c… When the truck sits and idles the blower works fine but when your driving and start to pull a hill the blower slows down when the truck is at about 3000 rpms nothing really is coming out of the vents as soon as you let off the accelerator it picks back up to normal

When do you need a new blower motor switch?

Touch device users, explore by touch or with swipe gestures. You use your A/C and heater a lot during the year, straining your blower motor switch. Signs you need a new blower motor switch include the fan only working on certain settings, the switch getting stuck, or the fan failing to turn on when you flip the switch.

How to check autocomplete results on blower motor switch?

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures. You use your A/C and heater a lot during the year, straining your blower motor switch.

Is the Chevy Silverado 1500 a / C heater blower motor?

Shop AutoZone for Chevrolet Silverado 1500 A/C Heater Blower Motor. 10% OFF $75. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only

Just the blower is intermittent, not the compressor. Fan speed does not have set speeds, it’s more like a rheostat. It has the rotary control.

Why is my blower not working on my Chevy Silverado?

Another common problem will be the blower motor will stick in the ON position and never shut off. You can access the resistor module behind the fuse box located on the driver’s side lower dash compartment. You must visually inspect the resistor, and make sure it isn’t melted or burnt. If it is, then replace it.

What does it mean when your lawn mower engine is sputtering?

Sputtering of the engine while mowing is often an indication of bad mower maintenance, not a fault with the machine. Most repairs to stop sputter are cheap and part of your regular mower maintenance. A sputtering lawnmower may need cleaning.

What causes intermittent operation on a Silverado Sierra?

Rockauto has them for like 30 bucks so it isnt a huge parts cannon projectile to try. The electrical schematic indicated it has a rheostat for fan speed control I just wanted to be sure that is what you have. Rheostats can get bad spots (worn or dirty) that will cause intermittent operation when you stop the control at one of these spots.

When to shut off O2 sensor heater circuit?

Some computer systems will shut the O 2 heater circuit off until the codes are cleared. Now, with the ignition switch off, plug the test harness with the light into the vehicle’s O 2 sensor harness connection. The light should remain off until the engine is started. Once the engine is running, the light should come on steady or blink.

Why does my right bank heater keep popping?

There are two codes that are popping, one says that the right bank is running lean and the other says the O2 sensor heater coil is bad. I don’t think the O2 sensor has anything to do with it because it’s been throwing that code off and on for the last while.

Why does my O2 sensor heater keep popping?

If you try to accelerate more it backfires a few times and then takes off like there’s nothing wrong. There are two codes that are popping, one says that the right bank is running lean and the other says the O2 sensor heater coil is bad.

Why does my truck sputter and backfire when I accelerate?

Hey I’m new here and desperate for answers! I’m in the middle of PCSing with the Air Force to Japan and was getting my truck ready to sell, when it started acting up when I accelerated after right after starting the engine. een The engine starts and runs fine, when I leave for or from work.

Why is my engine popping and backfiring during acceleration?

anytime an engine is popping and backfiring and carrying on its usually out of time or is mis firing A lean code usually indicates an intake manifold leak. It might just have gotten worse. Here we go again. acceleration Sputtering and popping was the first indication of trouble with mine (see: Another one not running ).

What kind of engine does GMC Sierra have?

The weight of passengers, cargo and options or accessories may reduce the amount you can tow. Sierra’s 12,500-lb rating requires Sierra Double Cab or Crew Cab Short box 2wd with 6.2L EcoTec3 V8 engine and NHT Max Trailering Package.