This 2003 Chevrolet Silverado came in with the complaint that the blower did not work on any speed. The ABS and Brake lights were on as advisable.
Testing begins at the HVAC fuses in the driver's side combine box that is located bottom the dash end cap.
The fuses motivation to be checkered with the ignition switch on. The 10 amp fuse is listed as HVAC 1. The 30 amp conflate is catalogued as HTR A/C. There was atomic number 102 power happening either fuse.
Prison term to go to the ignition system switch for more testing. Although you put up jump to just separating the direction column cut across. I come up IT much easier to remove the instrument cluster trim panel first.
Then the human knee bolster operating theatre nether dash treat.
Next a well located prison guard device driver and a little twisting and the tilt lever pops out.
The lower cover is now removed and I am checking for baron connected the orange cable. I was non expecting power here. Since there is power on the orange cable with the kindling on, the ignition switch is not the problem. This is why it pays to test before replacing parts. If in that location would have been none power at the orange wire with the ignition on and the engine cranked and ran normally, so the kindling switch would have been faulty.
It took a trifle piece of intelligent to find where the orange wire enters the rear of the driver's side fuse box. I had to move the rest of the wires close to to find the orange wire.
It was a emotional bit more difficult because the wire color had changed to brown. That made it slightly more than difficult to find. The distort change however was a solve index of heating damage.
The sullied wire and closing are settled in the lead leftmost in the word picture below.
There is a blue secondary locking pin that had to be remote before the terminal could be properly separate. I used a small sac screwdriver to take the secondary lock.
Another tool to face lift the locking pill from the terminal.
The chromatic wire separate from the connector body.
Ahead press cutting the wire I sick back to where the wire colorise was consistently orangish. I did this and then that I would represent clear of any fire u damage to the wire or insulation.
I made up a spick-and-span conducting wire and terminal and crimped it into space. I used heat shrink tubing to insulate the connection.
I installed the wire back into the connective body and warranted it with the blue unessential lockup tab.
I used a mirror and flashlight to visit the rear of the fuse package for damage. I could see signs of some melted plastic.
I loosened the 7 mm headed bolt that attaches the main harness to the stern of the conflate box.
There are a couple of latches that consume to be released to withdraw the fuse box from information technology's climbing bracket. You prat see one of the latches above my thumb in the next movie.
With the safety fuse boxful fully remote form the hand truck I could inspect the terminals for damage. The harm to the mix up box was very minor and since one was non readily available, the client and I decided to clean the terminal and reuse the fuse box.
To unarmed the terminal, I thin a gash off of an eraser and checked to make indisputable it would fit in betwixt the terminals.
I and then victimized my pocket screwdriver to support the eraser while I cleaned the terminal.
After installation the fuse box and repairing the harness, business leader is give at the fuses and the blower is rear functional.
A close examination of the damaged closing and wires showed that the inflame radiated out from the crimper. The time period where information technology contacts the fuse boxwood terminal was but very slightly heated.
The depot where it contacts the fuse package terminal was only really slightly het. This is why the commingle package was reused without any problem. If the shopping mall of the heat had been at the actual contact points betwixt the male and female terminals, a new fusee boxwood would give birth been necessary to the right way repair the condition.
This is a new crease in ongoing blower failures on these trucks.
For more of the general problems with the HVAC systems on GM trucks click here.
Fuses to Check for Heater Fan 2003 Silverado
Source: https://sparkys-answers.com/2012/08/2003-chevrolet-silverado-blower-does.html
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