What is it and how do I fix it?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lewi · 08-09-2003, 05:02 PM

My 12 year old daughter and I started out this mornig to go quad riding, loaded up the trailer and off we were.....until. I started smelling some electrical burning smell so we stopped and checked it out. What I found was a black box under the dash slightly above and to the drivers side of the gas pedal. I'm thinking it is the wiper motor but not sure, I know it was so hot when I touched it, it burnt my finger (then i disconnected the battery). I was towed back home and here i am. how do I fix it and where do I get the parts?

71 chevy lwb 350/350

cdowns · 08-09-2003, 06:19 PM

take it to the dealer

**FRENCHBLUE72** · 08-09-2003, 06:22 PM

Check out your ground's and trace any wire's that may have melted.. Bad ground's are notorius(sp) on older truck's.. If it is the wiper motor they are not too hard to replace..Good luck

lewi · 08-09-2003, 06:31 PM

I found a picture on "Chevy Duty" and it looks like it's the wiper motor that I burnt myself on. Do you need to take off the outside body panel (name of it ??) with the slots in it, or can it be done from the inside? What would be the cause of the heat with it turned off. It started smoking also. Could it be a faulty switch that coused the problem to begin with?

palallin · 08-09-2003, 11:32 PM

R & R on the motor isn't too hard.

First, reach through the slats in the cowl with a flat-bladed screwdriver and pop the clip holding the two wiper arm links to the shaft in the center. Slip the links off the shaft while making note of which one is on top.

Under the dash--and this is the hard part because you have to be a contortionist to do this without pain and strain--there are three cap screws (3/8 heads, IIRC) holding the motor assembly to a sheet metal "cup" welded to the inside of the plenum. Remove the wire connectors and the ubbe hoses from the pump manifold, and then remove the three screws.

The motor assembly will probably remain in place because oif the sticky goo used to cement the fiber gasket to it and the sheet metal. A moderate pull will bring it on down (twist slightly to get the transmission crank through the hole.

Reinstall by reversing the steps.

While you have it out, note that the pump is mounted to the motor base plate. Remove it (unless you luck out and the new one you buy has the pump on it: the pump is an additional $40 or so)). You might want to put a rebuild kit in the pump while the whole thing is on the bench, since your aching back is telling you that you don't want to do this again in the near (or even distant) future.

*Phillip Johnson* · 08-10-2003, 02:39 AM

Pull the fuse before you start a Bar B Q

truckresq · 08-10-2003, 03:37 PM

Hello,
Not mine to sell, but thought about you when I saw it. If its the problem, this may be an option.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2426639156

70 CST 4X4 · 08-10-2003, 04:19 PM

Quote:

Originally posted by truckresq
Hello,
Not mine to sell, but thought about you when I saw it. If its the problem, this may be an option.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2426639156

Think that is a seller who has some bad customer service. Be wary of that guy. Was a thread about him some time ago.

lewi · 08-10-2003, 09:59 PM

thanks for your help on this and I was very worried about a bar-b-q when i pulled over even for a while after I had disconnnected the battery with the smoke coming out..
How about the question as to why would there be power to it without it being turned on?

SWINGSAX68 · 08-10-2003, 10:14 PM

If you need your truck, you should be able to unplug it, and run your truck with out any problems...the fuse to the motor is to the far right below the flasher relay, or the the far left above the flasher relay....I think there are two diff kinds of fuse boxes
Being that it seems to be by itselfs you should be fine until it rains or you get another motor

SWINGSAX68 · 08-10-2003, 10:15 PM

also...find the shorted wires and replace them

SWINGSAX68 · 08-10-2003, 10:16 PM

in other words, just unplug it...not connected, no power to it

lewi · 08-10-2003, 10:21 PM

Thanks again, It's not my daily driver so I don't have rush it. So is flat out a shorted wire that needs to be found outside of the moter itself? Or is it whithin the motor ? I do most of the work on the truck myself but electrical problems freak me out.

SWINGSAX68 · 08-11-2003, 12:01 AM

Well, I can help you find a short if there is one. But you need a test light, and I need to see were the wires disconnect. From my watching a good electrician, i'll try my best to help you from here!!

Longhorn Man · 08-11-2003, 12:20 AM

Is this what you're talking about?

bpmcgee · 08-11-2003, 01:38 AM

Lewi,

It's hard to say exactly what the problem is. Simplest test is to disconnect the motor and see if you still have current flowing.

Brian

tom hand · 08-11-2003, 08:42 AM

The motor has power any time the key is on for the park feature. [Thats what returns the wipers to the same place no matter where you turn them off] If the motor was hot enough to burn you it's a pretty sure bet it's toast.

lewi · 08-11-2003, 01:07 PM

Hey that's what I was wondering, whether it had power all the time. I'll go ahead and check the motor once I have it out and replace it. Longhornmail, that is what it looks like although I can't see it from the angle you've taken this picture, to much junk in the way...

lewi · 08-11-2003, 01:41 PM

One more thought, Why wouldn't I have blown a fuse prior to the motor burning up?

Longhorn Man · 08-11-2003, 03:54 PM

You'r fuse may be coated with foil from a pack of smokes or chewing gum. Very common road side repair. Some times it stops raining and you'd forget the rapair was ever done and then sold like that. A nail or screw is another road side repair for blown fuses. None of these repairs would blow out when the load gets to be too high.
Just a theory.

08-09-2003, 05:02 PM	#1
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	What is it and how do I fix it?? My 12 year old daughter and I started out this mornig to go quad riding, loaded up the trailer and off we were.....until. I started smelling some electrical burning smell so we stopped and checked it out. What I found was a black box under the dash slightly above and to the drivers side of the gas pedal. I'm thinking it is the wiper motor but not sure, I know it was so hot when I touched it, it burnt my finger (then i disconnected the battery). I was towed back home and here i am. how do I fix it and where do I get the parts? 71 chevy lwb 350/350 __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.

08-09-2003, 06:19 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	take it to the dealer __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

08-09-2003, 06:22 PM	#3
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,603	Check out your ground's and trace any wire's that may have melted.. Bad ground's are notorius(sp) on older truck's.. If it is the wiper motor they are not too hard to replace..Good luck __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

08-09-2003, 06:31 PM	#4
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	I found a picture on "Chevy Duty" and it looks like it's the wiper motor that I burnt myself on. Do you need to take off the outside body panel (name of it ??) with the slots in it, or can it be done from the inside? What would be the cause of the heat with it turned off. It started smoking also. Could it be a faulty switch that coused the problem to begin with? __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.

08-09-2003, 11:32 PM	#5
palallin Registered User Join Date: Jul 2002 Location: St. James, MO Posts: 1,239	R & R on the motor isn't too hard. First, reach through the slats in the cowl with a flat-bladed screwdriver and pop the clip holding the two wiper arm links to the shaft in the center. Slip the links off the shaft while making note of which one is on top. Under the dash--and this is the hard part because you have to be a contortionist to do this without pain and strain--there are three cap screws (3/8 heads, IIRC) holding the motor assembly to a sheet metal "cup" welded to the inside of the plenum. Remove the wire connectors and the ubbe hoses from the pump manifold, and then remove the three screws. The motor assembly will probably remain in place because oif the sticky goo used to cement the fiber gasket to it and the sheet metal. A moderate pull will bring it on down (twist slightly to get the transmission crank through the hole. Reinstall by reversing the steps. While you have it out, note that the pump is mounted to the motor base plate. Remove it (unless you luck out and the new one you buy has the pump on it: the pump is an additional $40 or so)). You might want to put a rebuild kit in the pump while the whole thing is on the bench, since your aching back is telling you that you don't want to do this again in the near (or even distant) future. __________________ '69 Longstep K-10: 327/SM465/T-221/Closed Knuckle Dana44/12-bolt.

08-10-2003, 02:39 AM	#6
Phillip Johnson Account Suspended Join Date: Apr 2000 Location: Grants Pass, Oregon Posts: 1,580	Pull the fuse before you start a Bar B Q

08-10-2003, 03:37 PM	#7
truckresq Registered User Join Date: Feb 2003 Location: Sac Valley Posts: 179	If its the motor Hello, Not mine to sell, but thought about you when I saw it. If its the problem, this may be an option. http://cgi.ebay.com/ebaymotors/ws/eB...tem=2426639156 __________________ John Sacramento Area 1969 C10 Fleetside

08-10-2003, 09:59 PM	#9
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	thanks for your help on this and I was very worried about a bar-b-q when i pulled over even for a while after I had disconnnected the battery with the smoke coming out.. How about the question as to why would there be power to it without it being turned on? __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.

08-10-2003, 10:14 PM	#10
SWINGSAX68 Now the others dig........ Join Date: May 2002 Location: San Antonio, TX Posts: 1,520	If you need your truck, you should be able to unplug it, and run your truck with out any problems...the fuse to the motor is to the far right below the flasher relay, or the the far left above the flasher relay....I think there are two diff kinds of fuse boxes Being that it seems to be by itselfs you should be fine until it rains or you get another motor __________________ 68 Chevy C10 Stepside Black Primer 78 GMC Longbed White 09 Chevy Silverado Shortbed Granite Blue *LOOKING FOR A 67 4 DOOR IMPALA!!!Just like Sam and Dean Winchester!! 'Cause Mustangs are for p^#$ and you can fit a body in the trunk of a 67 Impala* MEMBER OF THE DRUM BRAKE CLUB Bachelor of Music in Jazz Studies Texas State University-San Marcos, TX Certified Music Educator I hope Mom is up there watching and being my Guardian Angel "I've got a fever.....and the only prescription.....IS MORE COW BELL" -The Legendary: Bruce Dickenson "F#$@ 'em up!!!!!!" -The Legendary: Rogelio Escobar TRUCKY LINKS** http://67-72chevytrucks.com/vboard/s...d.php?t=457750 http://67-72chevytrucks.com/vboard/s...d.php?t=461184 http://67-72chevytrucks.com/vboard/s...d.php?t=472848 http://67-72chevytrucks.com/vboard/s...d.php?t=417541 http://67-72chevytrucks.com/vboard/s...d.php?t=477788

08-10-2003, 10:15 PM	#11
SWINGSAX68 Now the others dig........ Join Date: May 2002 Location: San Antonio, TX Posts: 1,520	also...find the shorted wires and replace them __________________ 68 Chevy C10 Stepside Black Primer 78 GMC Longbed White 09 Chevy Silverado Shortbed Granite Blue *LOOKING FOR A 67 4 DOOR IMPALA!!!Just like Sam and Dean Winchester!! 'Cause Mustangs are for p^#$ and you can fit a body in the trunk of a 67 Impala* MEMBER OF THE DRUM BRAKE CLUB Bachelor of Music in Jazz Studies Texas State University-San Marcos, TX Certified Music Educator I hope Mom is up there watching and being my Guardian Angel "I've got a fever.....and the only prescription.....IS MORE COW BELL" -The Legendary: Bruce Dickenson "F#$@ 'em up!!!!!!" -The Legendary: Rogelio Escobar TRUCKY LINKS** http://67-72chevytrucks.com/vboard/s...d.php?t=457750 http://67-72chevytrucks.com/vboard/s...d.php?t=461184 http://67-72chevytrucks.com/vboard/s...d.php?t=472848 http://67-72chevytrucks.com/vboard/s...d.php?t=417541 http://67-72chevytrucks.com/vboard/s...d.php?t=477788

08-10-2003, 10:16 PM	#12
SWINGSAX68 Now the others dig........ Join Date: May 2002 Location: San Antonio, TX Posts: 1,520	in other words, just unplug it...not connected, no power to it __________________ 68 Chevy C10 Stepside Black Primer 78 GMC Longbed White 09 Chevy Silverado Shortbed Granite Blue *LOOKING FOR A 67 4 DOOR IMPALA!!!Just like Sam and Dean Winchester!! 'Cause Mustangs are for p^#$ and you can fit a body in the trunk of a 67 Impala* MEMBER OF THE DRUM BRAKE CLUB Bachelor of Music in Jazz Studies Texas State University-San Marcos, TX Certified Music Educator I hope Mom is up there watching and being my Guardian Angel "I've got a fever.....and the only prescription.....IS MORE COW BELL" -The Legendary: Bruce Dickenson "F#$@ 'em up!!!!!!" -The Legendary: Rogelio Escobar TRUCKY LINKS** http://67-72chevytrucks.com/vboard/s...d.php?t=457750 http://67-72chevytrucks.com/vboard/s...d.php?t=461184 http://67-72chevytrucks.com/vboard/s...d.php?t=472848 http://67-72chevytrucks.com/vboard/s...d.php?t=417541 http://67-72chevytrucks.com/vboard/s...d.php?t=477788

08-10-2003, 10:21 PM	#13
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	Thanks again, It's not my daily driver so I don't have rush it. So is flat out a shorted wire that needs to be found outside of the moter itself? Or is it whithin the motor ? I do most of the work on the truck myself but electrical problems freak me out. __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.

08-11-2003, 12:01 AM	#14
SWINGSAX68 Now the others dig........ Join Date: May 2002 Location: San Antonio, TX Posts: 1,520	Well, I can help you find a short if there is one. But you need a test light, and I need to see were the wires disconnect. From my watching a good electrician, i'll try my best to help you from here!! __________________ 68 Chevy C10 Stepside Black Primer 78 GMC Longbed White 09 Chevy Silverado Shortbed Granite Blue *LOOKING FOR A 67 4 DOOR IMPALA!!!Just like Sam and Dean Winchester!! 'Cause Mustangs are for p^#$ and you can fit a body in the trunk of a 67 Impala* MEMBER OF THE DRUM BRAKE CLUB Bachelor of Music in Jazz Studies Texas State University-San Marcos, TX Certified Music Educator I hope Mom is up there watching and being my Guardian Angel "I've got a fever.....and the only prescription.....IS MORE COW BELL" -The Legendary: Bruce Dickenson "F#$@ 'em up!!!!!!" -The Legendary: Rogelio Escobar TRUCKY LINKS** http://67-72chevytrucks.com/vboard/s...d.php?t=457750 http://67-72chevytrucks.com/vboard/s...d.php?t=461184 http://67-72chevytrucks.com/vboard/s...d.php?t=472848 http://67-72chevytrucks.com/vboard/s...d.php?t=417541 http://67-72chevytrucks.com/vboard/s...d.php?t=477788

08-11-2003, 12:20 AM	#15
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Is this what you're talking about? Attached Images

08-11-2003, 01:38 AM	#16
bpmcgee Registered User Join Date: Mar 2003 Location: Northern Illinois Posts: 2,181	Lewi, It's hard to say exactly what the problem is. Simplest test is to disconnect the motor and see if you still have current flowing. Brian



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08-11-2003, 08:42 AM	#17
tom hand CCRider Join Date: Feb 2000 Location: Olive Branch,MS,USA Posts: 2,232	The motor has power any time the key is on for the park feature. [Thats what returns the wipers to the same place no matter where you turn them off] If the motor was hot enough to burn you it's a pretty sure bet it's toast. __________________ 72 GMC Sierra SWB almost finished---- 84 Softail Olive Branch MS

08-11-2003, 01:07 PM	#18
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	Hey that's what I was wondering, whether it had power all the time. I'll go ahead and check the motor once I have it out and replace it. Longhornmail, that is what it looks like although I can't see it from the angle you've taken this picture, to much junk in the way... __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.

08-11-2003, 01:41 PM	#19
lewi Registered User Join Date: Nov 2002 Location: Redding California Posts: 223	One more thought, Why wouldn't I have blown a fuse prior to the motor burning up? __________________ 1971 Chevy Cheyenne 383/350 LWB 2wd Built to use, and look good.

08-11-2003, 03:54 PM	#20
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	You'r fuse may be coated with foil from a pack of smokes or chewing gum. Very common road side repair. Some times it stops raining and you'd forget the rapair was ever done and then sold like that. A nail or screw is another road side repair for blown fuses. None of these repairs would blow out when the load gets to be too high. Just a theory.

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