Your tip is was most timely. I am having problems with my heating system.

Front heater:  Blower motor runs fine on "High", but on the other settings, the motor runs in fits and starts. Very erratic.  Is this symptom solid for a relay problem? And you say I can get to it somehow through the dash, without having to remove it. That would be terrific.

Rear Heater: Blower runs fine, but I have a leak. I think the valve is leaking. Anyone with experience in changing it out. Are the valves expensive. Is it difficult. If I tackle the task, is there anything else I deed to address while I have it apart?

Thanks,

John Rodgers
88 GL Driver

WoodyHalsey2@CS.COM wrote:

Dear List,

A few days ago someone wrote asking for suggestions on how to approach a
heater blower problem, wondering whether it was hard to get at etc.

My *strong* suggestion is to try replacing the large relay above the fuse box
that controls the blower motor. It is a quick, easy and cheap fix. Don't
start dismantling the dash (a day's work) until your sure the relay is not
the source of the problem.

On two occasions this year aging relays have caused weird electrical problems
in my 83.5. First it was the blower motor, then it was the windshield wiper
motor. Since replacing the relays I have had no problems.  (Except that the
blower doesn't blow much air, but that's another story!)

Woody