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  #1  
Old 04-12-2009, 07:29 PM
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Default Air Conditioner/Heater only works on high

Like title says, it only works on high. Everything works fine except it only works when it is on highest. I have a 2000 silverado.
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  #2  
Old 04-12-2009, 10:27 PM
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Sounds like a blower resistor gone bad. Here is a link to one on eBay

http://cgi.ebay.com/ebaymotors/2000-...Q5fAccessories
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  #3  
Old 04-12-2009, 11:15 PM
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think so? i had a guy tell me it had to be some type of air conditioner switch, because i have options 1-5 from low- high and it only works on 5. im not saying your wrong i just want to be sure before i go by the part i need.
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Old 04-12-2009, 11:27 PM
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well never mind, i did some researching and i believe you are absolutely correct. thanks
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  #5  
Old 09-11-2009, 04:13 PM
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I'm having the same problem. Do you have the part number for the resistor? The ebay link is dead.

Many thanks!!
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  #6  
Old 09-12-2009, 02:51 AM
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no doubt. on high it bypasses the resistor, so if it only works there you know the problem.
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rip: 2002 silverado 2wd 4.8, , airaid mit, trans dapt tbs, redneck ram-air, ravin muffler, no cats, dual 4" tips, 265/75/r16 cooper discoverer s/t

gone: 1989 GMC Jimmy fullsize, carb 350, TH350, NP203, 33x12.50x15 BFG All Terrains, front and rear lockers

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  #7  
Old 09-14-2009, 10:36 AM
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Definately the resistor, I had the same problem twice on the 2001 I used to have. Dont' have the part number, sorry.
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  #8  
Old 09-14-2009, 02:25 PM
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Part number from Advance Auto is RU1064. Price is $28.99. Takes about 5 min total. 2 min to change the part, 3 more minutes to finish your beer.
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  #9  
Old 09-14-2009, 03:57 PM
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Quote:
Originally Posted by bfg112 View Post
Part number from Advance Auto is RU1064. Price is $28.99. Takes about 5 min total. 2 min to change the part, 3 more minutes to finish your beer.
i like your style haha
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rip: 2002 silverado 2wd 4.8, , airaid mit, trans dapt tbs, redneck ram-air, ravin muffler, no cats, dual 4" tips, 265/75/r16 cooper discoverer s/t

gone: 1989 GMC Jimmy fullsize, carb 350, TH350, NP203, 33x12.50x15 BFG All Terrains, front and rear lockers

Current: 1997 Chevy z71 ext cab and 05 gto a/t
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  #10  
Old 09-15-2009, 07:03 PM
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Default resistor

After reading another post on this I found the location of the resistor. It's located below the glove box by the fan motor. You have to remove the plastic panel cover to access it. Bought a new AC-Delco resistor (made in SLOVENIA) part #15-81087. Cost me $36 bucks at KOI parts store. Took about an hour. Remember...I'm kinda old. Blower works fine now. After removal of resistor it was easy to see it was a little cooked. Thanks for all the inof on the forum! Next job is fuel pump Since I have a fifth-wheel rig in my bed I think we'll try removing the tank instead of the bed...
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Old 09-15-2009, 07:03 PM
 
 
 
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99, ac, air, air conditioner, chevy, conditioner, f150, ford, heater, high, low, nissan, titan, truck, works

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