carychip@hotmail.com wrote:
> Help me please, its hot out there. My 89 DAK 3.9L needs a little help. The
> heat/AC blower stopped working on high setting this morning. The lower switch
> settings still work. I looked into the archives here and it seems that usually
> the problem is with the lower settings not working and the high working. I
> checked the fuse. I hope its the blower resistor block because that sounds
> easy to fix, but if the high setting doesn’t work and the lower settings do,
> wouldn’t that indicate the prob is somewhere else?
> Thanks for any help.
The blower motor bypasses the resistor elements on high... however the
power still flows through that resistor harness. If you look at the
back of it - you'll see the coiled wire of the resistor elements - and
one straight wire. That straight through non coiled wire is the "high"
circuit.
Take the resistor off the firewall - easier to clean it up if ya do.
Best bet is to take a stiff wire brush to the electrical connector
contacts and brush em up. Slather some dielectric grease on them and
slap the connector back on - should fix it right up.
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