Re: heater problems
Quote:
Originally Posted by oltronj
Got onto it last night and found a few rotten vacuum hoses and it's working now. All I have left is to figure out why the blower won't go to high. Thinking a bad relay or something, if anyone has ideas on that I would appreciate some guidance.
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There is a silver, rectangle relay mounted on the heater box (or next to it) inside the engine bay. A lot of times this goes bad making the high fan not work. You could try a junkyard one or get a new one at Autozone or Napa.
http://www.autozone.com/autozone/par...er=946055_0_0_
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- Jeff
89' K5 Blazer, 2.5" lift, 35" tires 
04' GMC Yukon XL, 3/4 ton, 8.1L
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