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full electronic gauges, you confirmed it moves with power so its prob not the servo motor, if it was fine before it would seem odd that the fuel level sender would be bad?
I have heard and experienced our cars doing some weird things when its cold, Ive had issues, turn it off then on again and it goes away, other times reflashing your tune can solve problems (I had weird idle and seemed to be running off, reflash and bam-I blame it on crappy bama tunes)
I wouldn't worry until you take it out in the spring
Well we found the issue. This also resulted in a drained battery while car was just sitting.
There is something called a smart junction box, located on the passenger side under the dash. Some connections were full of corrosion, causing a short.
The obvious question I now have is corrosion is caused by water......so where did it come from?
The gauge was not operating properly because of low voltage from the battery.
Why do I feel that I'm going to be the guinea pig here....as I have 255,000 kms on the car I'm sure I will run into problems sooner than most....hooray!
Smart junction box corroded is very common, Google search will bring up a bunch threads.
Best to track down and repair the water leak before replacing.
Recent thread on the same issue here.
http://www.torontomustangclub.ca/for...ght=water+leak
I experienced same problem with water at the sjb , I let dealer do their tsb , cowl plugs , pinch seams , they did not do the gaskets over the windows .
Was there any resistance at the dealers end due to TSB being so old?
No resistance just pay the fkrs they're happy