possible electrical problem? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

84lwb · 10-17-2009, 02:00 PM

The other night I was showing off my truck to a freind of ours son.All the sudden the gas guage and the blower motor started working.The gas guage only worked the fist time I fired up the truck,since then it's been pegged past full,and the blower has never worked,but when I flipped the switch it came on,but only on high speed and to be honest it doesnt feel like its blowing as fast as it should but it is blowing.any ideas as to what I should look into so this thing doesn't catch fire,thats the last thing I need right now!

cableguy0 · 10-17-2009, 02:27 PM

sounds like you have some ground issues under the dash. check and make sure there arent any crappy looking connections frayed or exposed wires etc etc etc. theres not a whole lot of wiring under there the problem should be fairly obvious

84lwb · 10-17-2009, 03:27 PM

good a ground issue makes me feel alot better about fire anyway.what about the single speed on the blower,new blower motor or fan switch.my thoughts say switch but not not sure about my thoughts!

Prong · 10-17-2009, 08:50 PM

Most likely the blower resistor is the cause of the fan problem. It's about $12 to cure that.

84lwb · 10-18-2009, 08:07 PM

thanks for all the help. anyone know the location of that resistor?

10-17-2009, 02:00 PM	#1
84lwb Registered User Join Date: Apr 2007 Location: Southern Maryland Posts: 209	possible electrical problem? The other night I was showing off my truck to a freind of ours son.All the sudden the gas guage and the blower motor started working.The gas guage only worked the fist time I fired up the truck,since then it's been pegged past full,and the blower has never worked,but when I flipped the switch it came on,but only on high speed and to be honest it doesnt feel like its blowing as fast as it should but it is blowing.any ideas as to what I should look into so this thing doesn't catch fire,thats the last thing I need right now!

10-17-2009, 02:27 PM	#2
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	Re: possible electrical problem? sounds like you have some ground issues under the dash. check and make sure there arent any crappy looking connections frayed or exposed wires etc etc etc. theres not a whole lot of wiring under there the problem should be fairly obvious __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

10-17-2009, 03:27 PM	#3
84lwb Registered User Join Date: Apr 2007 Location: Southern Maryland Posts: 209	Re: possible electrical problem? good a ground issue makes me feel alot better about fire anyway.what about the single speed on the blower,new blower motor or fan switch.my thoughts say switch but not not sure about my thoughts!

10-17-2009, 08:50 PM	#4
Prong Registered User Join Date: May 2007 Location: CO Posts: 475	Re: possible electrical problem? Most likely the blower resistor is the cause of the fan problem. It's about $12 to cure that.

10-18-2009, 08:07 PM	#5
84lwb Registered User Join Date: Apr 2007 Location: Southern Maryland Posts: 209	Re: possible electrical problem? thanks for all the help. anyone know the location of that resistor?



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