Gas gauge troubles

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.

casey3115

Junior Member
Joined
May 15, 2018
Posts
10
Reaction score
1
Location
Oregon
First Name
Casey
Truck Year
1977
Truck Model
C10
Engine Size
V8
My 1977 c10 gas gauge has been on the fritz. A few weeks ago it pegged itself way past full. It stayed that way for a few days and then one day when I started the truck it just went back down and was reading accurately again. It was fine for the next few weeks until just a few days ago. Again it pegged past full, then the next time I started it it want back to normal. Next day (today) it pegged it self again and after starting the truck a few times it seems stuck. Any ideas what I'm dealing with? I've had sending units stop working but the gauge didn't act this way.
Thanks in advance for the help

Sent from my Pixel 2 using Tapatalk
 

Obwonkonobe

Full Access Member
Joined
Feb 21, 2017
Posts
531
Reaction score
116
Location
AZ
First Name
Ethan
Truck Year
78
Truck Model
C10 custom deluxe
Engine Size
350
Sounds like your sender wire is either grounding or coming disconnected. Be sure it hasn't rubbed through anywhere. The power and ground wires may be bad too but I'd check the sender first since it has to run around the frame. If you aren't afraid to pop open your dash, try running a new temporary wire between the gauge and sending unit on the tank. Try to see over the frame rails and tank when checking the wire. Another option is to drop the tank and check, I replaced both my duals with the bed on, it isn't too hard.
 

Charlie

Mopar by Birth. Chevy by Choice.
Joined
Aug 2, 2017
Posts
1,837
Reaction score
909
Location
Euless, Texas
First Name
Don
Truck Year
1974
Truck Model
Cheyenne 10 LWB
Engine Size
350/TH350/AC/4 BBL Quadrajet
:welcome:

One thing you could do is remove gauge, clean (with sandpaper and cleaner, brake clean or alcohol) contact points on back and also the inside of the contact clips in the cluster. I have had some issues similar too this and cleaning helped a lot.
 
Last edited:

Latest posts

Forum statistics

Threads
41,848
Posts
903,426
Members
33,362
Latest member
Dhatch84
Top