Having problems with your 1986 Cadillac DeVille ?
Two problems 86 cadillac devile v8 my vents dont blow out but hear the blower motor. trans slipping with lucas thinking bands what to do
I had the same problem with my 86 cadi, Its the power module to the blower motor you need to replace it. Get a manual to locate it. But it should be against the fire wall under the hood on the passanger side and will have two white clips and some bolts holing it in. My transmission was slipping and to the point that i kept driving it and lost second gear. I replaced the tranny myself that may be what your gunna have to do or take it in.. not cheap tho. I also am replacing my head gaskets cause the head bolts tend to stretch cause they are so long on that model.
Repair Help & Product Troubleshooting for 1986 Cadillac DeVille
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