My fiance' had a remote start put on her car several years ago. It has not worked since I have been with her. The tach and fuel gauge are both operating incorrectly. The tach usually reads 5000 rpms and the fuel gauge always reads empty. Once in a while the fuel gauge will work for a little while but the tach is always out of whack. I scanned the light and it says fuel input circuit voltage problem. I am thinking when the remote start was installed the hack who did it tapped into something behind the cluster and that is my problem. Anyone have anything like this going on or has any advice please let me know.
Ford 150 Van No Start No Crank Same problem aftermarket remote start problem !
Watch the second part too . Do you know what a wiring diagram is ? Look under dash or the hood an see where the remote start is hooked up , what wires ! You can find a wiring diagram here at http://www.bbbind.com/free_tsb.html Enter the vehicle info. year , make , model an engine size . Under system click on engine , then under subsystem click on starting . Click the search button , then on blue link . You'll see all the componets in the starter circuit .
Don't know about your '04 Taurus, but here is how the fuel gauge worked on older cars, like cars in the 80's and '90's: you have a power wire that goes into the cluster and to a small voltage regulator, then reduced power (about 5 volts)from it goes to the temp gauge and to the fuel gauge, and I think to the tach but not positive on that last. Anyway, so the wire from the fuel gauge with low power goes into the gas tank to the "variable resistor" that the sending unit is. Power goes through the variable resistor, and then to ground. What the fuel gauge is actually measuring is the resistance to ground that the sending unit conveys. As the float arm of the sender moves up or down it changes the resistance to ground, and the gauge simply shows that resistance.
So if there is a input voltage problem, try measuring the voltage on the sender unit wire at the gas tank. If I am correct, there should be about 5 volts on the fuel gauge wire at the tank-with the key in on.
SOURCE: Tach needle buried at park
Purchase a new keyless remote FOB. The signal from the remote is weak and loses contact with the anti-theft module in the instrument cluster. We have 2 sets of keys and 1 worked while the other caused the instrument cluster needles to jump and jam the gear selector. The problem is not the car's battery, alternator, wiring or instrument cluster.
SOURCE: 2004 Ford Taurus. Installed after market Prestige
If this problem started just by changing the starter, either there is a wire unhooked or somehow switched, I do not think the starter would cause that as long as it was the right starter. It should have been identical to the old starter.
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