Sparky’s Answers: 2005 Chevrolet Silverado Blower Inop

10 Dec 2014 | Author: | Comments Off on Sparky’s Answers: 2005 Chevrolet Silverado Blower Inop
Chevrolet Silverado

Wednesday, July 30, 2008

Chevrolet Silverado Blower

This is a very common on 1999, 2000, 2001, 2003, 2004, 2005, and 2007 Chevrolet Silverado and GMC trucks. Over a period of the resistor and usually the connector and blower operation stops in or all speeds.

The blower resistor is on the passenger side of the vehicle the glove box. There is a cover that has to be removed to access to the resistor and wiring.

the cover is removed disconnect the connector and inspect for damage. On particular vehicle the only that were damaged the third from the right and the from the left. Sometimes all of the will be damaged and the plug be melted to the resistor as shown in the pictures.

After thoroughly inspecting the for damage the terminal retaining was removed from the old and the new harness The good wiring was transferred one at a from the old connector to the new connector. A extracting tool is needed to do The locking tab must be slightly before the terminal can be removed the connector.

A solid piece of such as a larger paperclip be used if a tool is not available. If you do not an adequate tool or experience should not be done. Cut the wires one at a and splice in to the harness using a … connector.

Be sure to stagger the spliced as much as possible in order to a neater and less troublesome

Retape the harness and install the new resistor and harness connector. As any wiring repair that a burnt connector, the connector and the that it attaches to must be at the same time or the repair fail very quickly.

connector like many will be found was melted to the and every wire had to be replaced. You can yourself time and money by being aware of changes in vehicle and repairing them as as possible. If you need quality click here.

I recently completed a video on repair as well. Please here to view.

I am adding instructions due to popular demand. is as follows. Disconnect the 7 wire connector and inspect.

If there is any of heat damage replace parts per above instructions. If is no sign of heat damage check the following. With the 7 harness disconnected check for on the red wire.

It should have 12 volts at all and it gets it’s power the 40 amp blower fuse in the under fuse box. Next the key on check for 12 volt power to of the following wires as you move the speed switch from low to Yellow / low, tan / med 1, lt blue / med 2, / med 3 and orange / high.

Remember, test is done with the key on and the wire harness disconnected . than the red wire having at all times, only one wire at a will have power on it, a proper test. If there is no to any of these wires during the check the fuse in the driver’s fuse box. If only of these signals are missing, you need to inspect the blower switch and related wiring.

Also you should do a drag on the terminals to check the spring Please click here for instructions

Terminal A Tan = Speed 2, through blower switch HVAC fuse

Terminal C Purple = Speed 4, through blower switch HVAC fuse

Terminal D Lt = Speed 3, power through switch from HVAC

Terminal E Black = Blower ground at all times

Terminal F = Speed 5, power through switch from HVAC

Terminal G Red = Speed 5, Constant from BLWR fuse hood

If for some reason the does not work at all and there is no on any of the wires except the red. you may to see the recent information I published a new problem that has occurred. click here to see that

Chevrolet Silverado
Chevrolet Silverado
Chevrolet Silverado
Chevrolet Silverado

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