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Question

sonoma heater blower


Sent to Car Experts July 23, 2005 12:30 p.m.
Hi, I have a 1995 gmc sonoma w/o ac. The heater blower
fuse has no power to the hot side with ignition on. Blower works fine when the load side of the fuse is jumped directly to the battery. Could this be an ignition switch problem?
Customer (name blocked for privacy)
Status: Closed   Value: $20   
Answer
July 23, 2005 1:07 p.m. (37 minutes and 49 seconds later) 		REPLIED Check Mark
Yes it could be the switch but you should check the power distribution fuses under the hood and see if the fusible links at the starter are OK first.

Edited by enginboy on July 23 2005 at 1:08pm
PictureMarc  -- Technician,Auto -- 98% Positive Feedback on 1017 Car Accepts
32 years exp. automotive repair NYS emisisions repair cert.
Reply to Marc
Sent July 23, 2005 1:10 p.m. (2 minutes and 52 seconds later)
Where would the power distribution fuses be located?
Customer (name blocked for privacy)
Answer
July 23, 2005 1:14 p.m. (3 minutes and 16 seconds later) 		ACCEPTED Check Mark
There is a black plastic box under the hood it usually says power distribution center on it.It has the big maxie fuses and the relays in it.
PictureMarc  -- Technician,Auto -- 98% Positive Feedback on 1017 Car Accepts
32 years exp. automotive repair NYS emisisions repair cert.
Reply to Marc
Sent July 23, 2005 1:25 p.m. (11 minutes and 47 seconds later)
Thanks Marc,I hope it's as simple as that. I
assume the fusable links are right by the starter.
Also if everything checks out ok, should I suspect
the ignition switch?

Customer (name blocked for privacy)
Answer
July 23, 2005 1:31 p.m. (5 minutes and 53 seconds later) 		ACCEPTED Check Mark

The fusible links if your truck has any will be on the large stud of the starter (positive stud where the battery cable connects).

If all the circuit protection is good yes suspect the Ign. switch, Use a 12 volt test light to check it you will have one or more dead leads in the on position Power that lead up and the blower should work.



Edited by enginboy on July 23 2005 at 1:32pm
PictureMarc  -- Technician,Auto -- 98% Positive Feedback on 1017 Car Accepts
32 years exp. automotive repair NYS emisisions repair cert.

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