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2003 Ram 1500 Blower Motor Not Working


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mrbilliard
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Jan 18, 2007, 9:19 AM

Post #1 of 3 (5056 views)
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post icon 2003 Ram 1500 Blower Motor Not Working Sign In

I have a 2003 Dodge Ram 1500 quad 2wd and the blower motor quit working. I checked the fuses, pulled the blower motor and hooked it directly to the battery and everything was fine. I also purchased a new blower motor resistor and installed, but still nothing. I checked for power at the motor and the resistor and I get nothing. I had my brother who is an electrician check the switch and he says it seems to be fine. I am running out of things to check and Chrysler wants $80 just to look at it. If anyone can help with this it would be much appreciated, by the way this ram has the 5.9 V8, thanks again.


steve01832
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Jan 19, 2007, 6:35 AM

Post #2 of 3 (5045 views)
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Re: 2003 Ram 1500 Blower Motor Not Working [In reply to] Sign In

The next thing you should check is the blower motor relay.

Steve


DanD
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Jan 19, 2007, 8:28 AM

Post #3 of 3 (5043 views)
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Re: 2003 Ram 1500 Blower Motor Not Working [In reply to] Sign In

Because I don’t know what a quad is; a ram pick up, ram van or ram wagon? I’ll talk generically because the one thing that I see in all three is that the blower motor is fed power directly from the ignition switch when its in the run position. The resistor and switch are on the ground side of the circuit. So with the motor unplugged you should have power on one of the wires (either blue or green) with the ignition on. With out having power at this wire you’re going to have to chase it back to the ignition switch to find out where it has gone open.
The blower motor circuit is fused before the ignition switch; with you not saying anything about other things not working it likely isn’t a fuse. But recheck them any way it’ll be of a higher amperage 40 or 50 amp in the under hood fuse panel.
Also with the blower motor unplugged you won’t see any power at the switch or resistor because like I said they are on the ground side of the circuit.
Not to insult anyone but tell your brother to remember that this is a DC (direct current) system not AC. I’ve seen electricians work on automotive wiring before and they keep looking for a neutral wire; there isn’t one. LOL
Dan.

Canadian "EH"








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