Blower stopped working

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Sep 22, 2008 | 05:06 PM

dnoonkeste

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Blower stopped working

I have a 1986 Dodge Truck 150. The blower to the heater and AC stopped working. When it started giving me a problem, I could start to turn on the ignition switch, but not start the truck and it would work. Now that doesn't work either. I unhooked the blower and ran a wire to from the battery and it works. So, what could be the problem now?
Thanks.

Sep 22, 2008 | 06:22 PM

Commando

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From: New Jersey

Are there relays in the truck? I know in my truck I would check the relays, but mine is about 10 years newer.

Sep 22, 2008 | 08:54 PM

challenger

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From: MICHIGAN

im pretty sure commando is correct and i would also make sure the blower switch is not burnt out as dodge had the problem with them getting extremly hot and melt the inside of the switch / just check it to be sure ok ... let us no what you find out

Sep 23, 2008 | 07:36 AM

Commando

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Do you have a manual, as it should have a chart of the relays and their positions.

Sep 24, 2008 | 07:00 PM

dnoonkeste

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Manuel

My manuel just shows the fuses. Where can I get a manuel or a diagram of the relays, since the truck is so old?

Sep 24, 2008 | 07:46 PM

Commando

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Do you have a box under your hood, with things that look like this in it (but with a black cover over the top part):

As I do not know when they started putting them in autos, from the article that I grabbed the picture from it was invented in 1835. Will see if I can find something for you.

Sep 24, 2008 | 07:58 PM

Commando

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From: New Jersey

I was looking at Rockauto to see if they listed a relay for the blower, but they didn't, however there are some switches for it, which could also be the problem.

Do you have a circuit tester? I would check to see if it is getting electricity or not, and backtrace the wiring from there.

Sep 25, 2008 | 05:00 AM

richinny

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Quote:

Originally Posted by dnoonkeste

the blower power is cut off when you crank the engine. since you indicate a problem at the switch, you might want to check the thick output wires from the ignition switch and see if you have power on all of them when the key is on.

Jan 14, 2009 | 05:02 PM

Seg1955

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I had that problem too and it turned out to be the ground wire from the blower motor that attached to the firewall was bad, fixed that and had no more problems.

Apr 14, 2009 | 12:40 AM

#10

8287rams

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lol my truck was doing the same thing, alright if you look at the a/c controls it has the temperature level at the top the speed to the right and at the bottom the push type buttons, if you remove the whole thing you will have to replace the bottom part, they always overheat and burn.