Last serviced at 183,665 miles in Johnstown, PA on 06/09/21 Mileage: 85,773 miles Body Type: Pickup Color: White Engine: 8 Cyl 6.0 L No accident or damage reported to CARFAX. Where was the 2005 GMC Sierra 2500HD last serviced? Alternate fire, custom ground camshafts – such as this 6480 unit from SoCal Diesel – are all the rage these days. Thanks to its high-flowing (for a diesel) aluminum heads, the right camshaft can complement the Duramax’s advantageous head flow considerably. What kind of camshaft does a Duramax diesel use? In stock form and even when substantially modified, GM’s legendary V8 diesel can provide hundreds of thousands of miles of trouble-free use. It’s been said before, but that doesn’t make it any less true: The 6.6L Duramax is one heck of an engine. What kind of engine does a GM Duramax have? The failure is most common in higher horsepower engines, but can still occur in moderately modified and even stock power plants. Not only does this mean game-over for the engine, but it results in a truck that’s down for weeks (if not months) and a huge chunk of change missing from your wallet. What happens when a Duramax engine goes down? So, I would look to see if the relay is ok. When you switch to high,the blower motor relay coil circuit is grounded and voltage is now applied directly through the relay to the blower motor bypassing the resistors. Top 2004 GMC Envoy Problems 1 Air Compressor for Rear Air Springs May Fail 470 people have reported this 227 2 Fuel Level Sensor Failure 378 people have reported this 214 3 AC Blower Inop Due to Failed Resistor 272 people have reported this 121 4 CD Player In Radio May Fail 175 people have reported this 85 What happens to the relay on a blower? What are the problems with a 2004 GMC Envoy? Usually what happens is the blower motor gets worn bearings/bushings and pulls too many amps, which in turn burns the resistor out. I would replace the blower motor as well. 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. The usual failure of the resistor pack is if it works in HI (5) but not in any other mode or just a few modes.
Why does my Silverado fan only work on 3 + 4? Why is my blower not working in Hi ( 5 )? Think of these coils like a filament in a light bulb. The resistor block contains three different high resistance coils. The blower motor resistor is what’s responsible for giving you three blower speeds. Older style blower motor resistor with exposed resistor elements. Why is my blower not working on my GMC Sierra? How does a blower work on a Chevy Silverado?.What can I do about my 2000 GMC Sierra heater?.What should I do if my GM fan won’t turn on?.Is there a high speed blower motor relay?.What happens if the blower motor only works on high speed?.Is the fan speed set or intermittent on a Silverado Sierra?.Why is my blower motor resistor not working?.
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