1982 Gmc electrical mystery-Really dumb question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gregg72340 · 09-15-2010, 03:28 PM

Ok, this one is going to sound really stupid but here goes. This truck has been sitting for the good part f 10 years and we are going to try and get her running again. Everytime somebody needed a part for their other trucks we would steal it off of ths truck. Now we cant remember what one part was that we took. It was bolted on the firewall and it was a small square black box. This is the last piece we need to throw back on her to give her a shot at life again. Definitly electrical part we remember that much, could it have been a voltage regulator??????? any help would be appreciated

c10sport · 09-15-2010, 03:34 PM

Nope, not voltage reg. Those were internally regulated.

Engine size may help.

Pics of the connector would really help. Or even wire color and number of wires.

Only black boxes I can think of on the firewall are the wiper motor and junction block (which really isn't a "box").

Adams74Chevy · 09-15-2010, 03:43 PM

Is it the electrical part in the upper right of this picture?

http://67-72chevytrucks.com/vboard/s...6&postcount=29

gregg72340 · 09-15-2010, 04:30 PM

Quote:

Originally Posted by c10sport

Nope, not voltage reg. Those were internally regulated.

Engine size may help.

Pics of the connector would really help. Or even wire color and number of wires.

Only black boxes I can think of on the firewall are the wiper motor and junction block (which really isn't a "box").

305/auto, cant get a picture right yet the truck is 3 hrs away, will try and get this weekend

GM72K10 · 09-15-2010, 04:59 PM

Are you missing the Engine Wiring harness block?

gregg72340 · 09-15-2010, 05:04 PM

Quote:

Originally Posted by Adams74Chevy

Is it the electrical part in the upper right of this picture?

http://67-72chevytrucks.com/vboard/s...6&postcount=29

Im starting to think that is it, my Brother is an idiot and he is the one that took it off and couldnt remember what it was, Im starting to think its the junction block because by the way its being described there really is nothing else except the wiring block and thats there. Will have to check this weekend in person I guess

09-15-2010, 03:28 PM	#1
gregg72340 Registered User Join Date: May 2010 Location: ambler, pa Posts: 325	1982 Gmc electrical mystery-Really dumb question Ok, this one is going to sound really stupid but here goes. This truck has been sitting for the good part f 10 years and we are going to try and get her running again. Everytime somebody needed a part for their other trucks we would steal it off of ths truck. Now we cant remember what one part was that we took. It was bolted on the firewall and it was a small square black box. This is the last piece we need to throw back on her to give her a shot at life again. Definitly electrical part we remember that much, could it have been a voltage regulator??????? any help would be appreciated __________________ Just would like the snow to stop so I can actually work on my truck!!!!!!!!!!!

09-15-2010, 03:34 PM	#2
c10sport Registered User Join Date: Sep 2010 Location: state of denial Posts: 271	Re: 1982 Gmc electrical mystery-Really dumb question Nope, not voltage reg. Those were internally regulated. Engine size may help. Pics of the connector would really help. Or even wire color and number of wires. Only black boxes I can think of on the firewall are the wiper motor and junction block (which really isn't a "box"). __________________ Jay 2001 Pontiac Aztek GT

09-15-2010, 03:43 PM	#3
Adams74Chevy Registered User Join Date: Mar 2009 Location: MD Posts: 417	Re: 1982 Gmc electrical mystery-Really dumb question Is it the electrical part in the upper right of this picture? http://67-72chevytrucks.com/vboard/s...6&postcount=29 __________________ 2006 Silverado Crew Cab 1500 4x4 5.3L automatic 1986 M1008 CUCV 6.2L Detroit Diesel TH400 4.56 Detroit Locker rear NP208 1973 K20 "Silverado" 350ci, HEI, TH350, NP203 with 2wd conversion, A/C, power windows,tilt wheel, dual tanks. My '73ish K20 thread My 5yo son claims it as his. 1987 V20 Custom Deluxe 350 TH400 NP208 "farm truck" getting parted out. 2016 Nissan Altima grocery getter/commuter

09-15-2010, 04:59 PM	#5
GM72K10 Next! Join Date: Jan 2003 Location: Eastern Pa. Posts: 2,483	Re: 1982 Gmc electrical mystery-Really dumb question Are you missing the Engine Wiring harness block? __________________ 86 K30 CUCV M1028A1 86 K30 CUCV M1028a2 dually 86 K30 C&C 6.2 4:56s, 4M, 11,000 gvw, ex fire truck, now lowboy dump More square bodies and CUCVs than I care to admit to 2020 Silverado K3500HD Work truck

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