Instrument Voltage Regulator
Senior User
Joined: Dec 2001
Posts: 396
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From: Ohio
Instrument Voltage Regulator
Does anyone know how to test to see if this is broken, and if it is, would that cause my gas gauge not to work? Also, if it does need replaced, can I buy it at a parts store?
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Instrument Voltage Regulator
Go to the Temperature sending unit.
Take the wire off and attach a test light to it.
If the light PULSES on and Off.
The VR is working.
This VR runs both the Temp gauge and the Fuel gauge.
Dennis
Oh....Please Don't Ask Me Any Tough Questions As:
"I'm Saving Up MY Memory For When I Develop Alzheimer's"
78 F-150 429CJ C6 ,Silver w/Explorer Pkge
641/2 Mustang,Pre-World's Fair Car #8092
64 Fairlane S/C waiting for a 390-4spd.
68-Mustang.Sunlit Gold 80,000 miles
Take the wire off and attach a test light to it.
If the light PULSES on and Off.
The VR is working.
This VR runs both the Temp gauge and the Fuel gauge.
Dennis
Oh....Please Don't Ask Me Any Tough Questions As:
"I'm Saving Up MY Memory For When I Develop Alzheimer's"
78 F-150 429CJ C6 ,Silver w/Explorer Pkge
641/2 Mustang,Pre-World's Fair Car #8092
64 Fairlane S/C waiting for a 390-4spd.
68-Mustang.Sunlit Gold 80,000 miles
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Instrument Voltage Regulator
You can do a quick check to isolate whether the problem is on the tank side or gauge side. Turn the ignition key to acc, pull the orange wire on the tank sending unit and ground it. The fuel gauge should peg out. Do this just long enough to see if the gauge pegs, a few seconds. If it pegs, the problem is in the tank sending unit. If it does nothing, the problem is in the fuel gauge or wiring.
Barry
Barry
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