1994 suburban fuse question

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

78C10BigTen

Full Access Member
Joined
Apr 12, 2017
Posts
15,601
Reaction score
24,045
Location
pennsylvannia
First Name
Ted
Truck Year
1978
Truck Model
C10 BIG TEN
Engine Size
350
I know not square but theres someone here that would know. Can anyone tell me what this fuse holder goes to?

You must be registered for see images attach
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,192
Reaction score
16,055
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350
I believe that goes to the HI speed heater fan relay.

That wire turns on the relay from the interior switch which then sends 12v to the fan.
Clean the contacts, dab them with some di-electric grease, and install a 25 amp fuse.

As shown in the pic, they do tend to dry out and fall apart. It's best to replace with a weather-proof fuse holder.

See that little thingy to the left of the 12v buss?
I'll bet there's a fuse in there.

Get another thingy like it and replace your broken one with it.
Plenty of them in the boneyard.
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,192
Reaction score
16,055
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350
There's a little thingy with 2 wires just to the left of the buss (with the 5 bolts).

Pull (slightly) the tab, pull down and pull the 2 wire connector out.
 

78C10BigTen

Full Access Member
Joined
Apr 12, 2017
Posts
15,601
Reaction score
24,045
Location
pennsylvannia
First Name
Ted
Truck Year
1978
Truck Model
C10 BIG TEN
Engine Size
350
There's a little thingy with 2 wires just to the left of the buss (with the 5 bolts).

Pull (slightly) the tab, pull down and pull the 2 wire connector out.
Think theres a fuse in there?
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,192
Reaction score
16,055
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350
Could be. Or monsters.
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,192
Reaction score
16,055
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350
Be brave Grasshopper. Let us know what you find.
 

78C10BigTen

Full Access Member
Joined
Apr 12, 2017
Posts
15,601
Reaction score
24,045
Location
pennsylvannia
First Name
Ted
Truck Year
1978
Truck Model
C10 BIG TEN
Engine Size
350
Be brave Grasshopper. Let us know what you find.
May be awhile..... this is the first ive played with my burb in months... shes in need of a motor so it just sits.
 

Forum statistics

Threads
42,168
Posts
910,549
Members
33,663
Latest member
eatfood
Top