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#1 |
Registered User
Join Date: Oct 2011
Location: Corinth, Ms
Posts: 7
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Speedometer problems n fuel gage help!!
I just got a 69 c10 for the first time but speedometer doesnt work or ether the fuel gauge any tips thanks!!!!
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#2 |
Restoration Virgin!
Join Date: Jan 2008
Location: Huntersville, NC
Posts: 8,298
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Re: Speedometer problems n fuel gage help!!
ttt
__________________
Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present |
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#3 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Speedometer problems n fuel gage help!!
One of three things. Bad fuel gauge, wire going to sender or bed sender in the tank.
A way to check the gauge is to ground the wire to the sending unit to see if the fuel gauge moves towards empty. If it does then more than likely it's the sending unit in the tank that's bad. |
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#4 |
Registered User
Join Date: Jan 2011
Location: Redmond, OR
Posts: 759
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Re: Speedometer problems n fuel gage help!!
Speedo - probably the cable (they are around $15 at NAPA). The cable just threads onto the back of the speedo and the side of the trans. If you unthread them from each end, you can turn the inner drive cable by hand and see if the other end turns. If not, the drive cable is sheared off. If it turns, then either the speedo drive on the trans is bad or the speedo itself is bad. Generally, it is just the cable.
On the fuel sender - if the gauge is stuck at 3 o'clock, then pull the wire off the sending unit and ground it out. If the gauge goes to 9 o'clock, then the sending unit is bad. You can also put an ohmmeter on the gauge stud to ground. If it is good, it should read between 0-90 ohms. If it is open (infinite resistance, then you need a new sending unit (about 30-50 dollars, depending on who you go through). Also, check to make sure the sending unit wire is connected. It runs from the sending unit to a terminal on the fuse block.
__________________
68 Chev C20- son has it now 83 K20 - bought from son 70 C20 - in progress |
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#5 |
Registered User
Join Date: Oct 2011
Location: Corinth, Ms
Posts: 7
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Re: Speedometer problems n fuel gage help!!
Thanks guys for the help I will get all that check this weeken!!!
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