QuestionI have a 1971 Caddi Eldo and the blower motor just wont run. I have replaced the blower, checked the operation of the dash control unit (Compressor turning on and off at the right times, vacuum control system shifting for heat and A/C appropriately) System is charged. From my own experience, and the GM tech manual, the most likly cause at this point is the Blower Relay. There is a problem though, out of 6 extremely similar electrical schematics I have, none of them have just a "blower relay" shown. There is an "auto" and a "low", but no other relays showing. I bought supposedly just the "blower" relay from the autoparts store, and it doesn't fit the plug of the 2 relays I have found under the hood on the firewall.
So the question is: Is there more then 2 relays? Where are they located? And is there just a straight "blower" relay? If so, where is it? Or is the "low" also called the "blower" relay" Lastly, is there anything else that could cause the system to work fully, but just no blower operation?
AnswerLook in the very front of the right engine cylinder head down towards the engine block and see if you see a single , I think it is a black wire< that goes into a recessed hole and has a round screw in switch with a spade terminal on it. This would be the blower temperature switch.
OR look on the left side of the engine block for a small round spade connector with a black wire attcahed to it. This would be the same thing.
It is in either place, I just can't remember which year where they put it.
If you can e-mail me several pictures of these areas I might be able to pick it out for you.
contact me at: onlineautohelp@msn.com
