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02-05-2016, 06:32 PM
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#1 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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02 silverado,heater motor/relay
I have been seeing the fan speed does not work in the lower ranges, & figured that the relay was going.....well, she quit,(no fan @ any speed) with cloud of smoke under the dash & out the vents! The question that I need to ask, is did I smoke some wiring also? Electrical, is not my best subject....any help, would be very helpful.
 Longhorn
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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02-06-2016, 11:04 AM
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#2 |
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Registered User
Join Date: Mar 2008
Location: williamsport,pa
Posts: 329
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Re: 02 silverado,heater motor/relay
more than likely the resistor burnt up. that is a own problem with those. the harness probably is burnt as well. you can get the new resistor and plug from your local dealer. the plug is a pigtail with about 12 inches of wire to get rid of the burnt part. the fuse might have blown as well.
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02-06-2016, 07:10 PM
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#3 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: 02 silverado,heater motor/relay
Many thanks bro trucker....the resistor, is fryed. The plug looks, but I will unwrap the wires to check for the melt down
Longhorn
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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02-08-2016, 04:25 PM
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#4 |
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Registered User
Join Date: Mar 2008
Location: williamsport,pa
Posts: 329
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Re: 02 silverado,heater motor/relay
I wouldn't trust the plug. just change it and be done with it.
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02-10-2016, 12:12 AM
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#5 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: 02 silverado,heater motor/relay
Thanks again
I thought I had the resistor, from a parts truck....got the blower motor, & the end of the harness. yes , a couple wires close to the plug have been heated! Orilleys offers a Dorman resistor & plug pigtail for about 42 bones.....good deal, or would you go AC delco? longhorn
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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02-10-2016, 06:23 PM
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#6 |
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blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: 02 silverado,heater motor/relay
F*** Dorman!!! If it's metal, rubber or plastic it is junk.
I find the blower starts drawing high current loads (not high enough to blow fuse) and takes out resistors and pigtails.
__________________
Man rule #77...if you own a 67 stepside with a caddy 472 you will never be in danger of loosing you man card |
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02-11-2016, 07:13 PM
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#7 |
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Registered User
Join Date: Aug 2015
Location: Starbase 4
Posts: 118
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Re: 02 silverado,heater motor/relay
Dorman resistor and pigtail will work, IF you get the right one. There are several different configurations.
G.M. put the resistors in the case so airflow will cool them, but they are at the low spot in the blower case. Water build-up in the case will destroy the resistor. Also, the plug is where everyone on the passenger side can kick it... Makes me wonder of they were hiring cast-off Ford engineers... |
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02-11-2016, 10:09 PM
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#8 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: 02 silverado,heater motor/relay
Show me the right confirguation, on the dorman resistor? I do not want to spend 3 times on the Delco part....if I do not need to
Longhorn
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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02-14-2016, 11:31 AM
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#9 |
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Registered User
Join Date: Aug 2015
Location: Starbase 4
Posts: 118
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Re: 02 silverado,heater motor/relay
There are different applications depending on wether it's got climate control, Manual control, and stuff like that. If you go to autozone's website, you should be able to get the right part#. (then buy it on amazon for 1/3 the cost!)
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02-19-2016, 04:07 AM
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#10 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: 02 silverado,heater motor/relay
Thanks again guys....I got the delco parts from the dealer (sons discount)
 longhorn
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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02-23-2016, 12:45 AM
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#11 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: 02 silverado,heater motor/relay
Update guys....the blower was also smoked! I had a spare,from a parts truck, that just keeps giving
crazy L
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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