Gas Gauge Issue
August 14th, 2016 | 05:56 PM
#3
Registered User
Joined: May 2009
Posts: 1,009
From: Woodland WA
Fuel Gauge reads full
Universal Fuel Sender Questions and Troubleshooting
Which sender should I choose?
The resistance of your fuel sender should match that of your gauge. For instance the resistance of the stock gauge in a 55 Chevy has a value of zero ohms when empty and 30 ohms when full. The following list is for stock gauges and some popular aftermarket brands:
The resistance of your fuel sender should match that of your gauge. For instance the resistance of the stock gauge in a 55 Chevy has a value of zero ohms when empty and 30 ohms when full. The following list is for stock gauges and some popular aftermarket brands:
- Ford up to 1986 - 73-10 Ohms
- Ford 1987 & up - 16-158 Ohms
- GM up to 1964 - 0-30 Ohms
- GM 1965-1997 - 0-90 Ohms
- GM 1998 & up - 40-250 Ohms
- Mopar up to 1986 - 73-10 Ohms
- AMC 1950-1977 - 73-10 Ohms
- Autometer -240-33 Ohms is the most common however other ohm ranges are made
- Classic Instruments - 240-33 Ohms (excluding vehicle specific gauge kits which use factory ohm range)
- Dolphin - 0-90 Ohms
- Dakota Digital - Programmable to work with most Ohm range senders
- VDO - 10-180 Ohms
My fuel gauge only reads empty.
If you cannot make your gauge read anything but empty then depending on your ohm range you may have one of the following problems:
If you have a 0-30, 0-90, and 10-180 Ohm sender then most likely your sender lead wire is grounding out somewhere. Or possibly the center terminal on the sending unit itself is grounding out against the body of the car.
If you have a 240-33 or 73-10 Ohm sender then the sender may not have a proper ground or there is a break in the sender lead wire.
If you cannot make your gauge read anything but empty then depending on your ohm range you may have one of the following problems:
If you have a 0-30, 0-90, and 10-180 Ohm sender then most likely your sender lead wire is grounding out somewhere. Or possibly the center terminal on the sending unit itself is grounding out against the body of the car.
If you have a 240-33 or 73-10 Ohm sender then the sender may not have a proper ground or there is a break in the sender lead wire.
My fuel gauge only reads full.
If you cannot make your gauge read anything but full then depending on your ohm range you may have one of the following problems:
If you have a 0-30, 0-90 or 10-180 Ohm sender then the sender may not have a proper ground or there is a break in the sender lead wire.
If you have a 240-33 or 73-10 Ohm sender then most likely your sender lead wire is grounding out somewhere. Or possibly the center terminal on the sending unit itself is grounding out against the body of the car.
If you cannot make your gauge read anything but full then depending on your ohm range you may have one of the following problems:
If you have a 0-30, 0-90 or 10-180 Ohm sender then the sender may not have a proper ground or there is a break in the sender lead wire.
If you have a 240-33 or 73-10 Ohm sender then most likely your sender lead wire is grounding out somewhere. Or possibly the center terminal on the sending unit itself is grounding out against the body of the car.
Jerry
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