Question about 2000 Ford Contour
Car is a 2000 Ford Contour SE with 2.5L V6
My alternator is good, battery is good, voltages check out with car off, idle, and when driving. The thing is, my lights pulse, not all the time, but only when I am on the gas. I've even gone so far as to replace the cable terminals in case somehow they were corrupted. I know the alternator is fine, it is rated at 130 amps, and a clamp ammeter checks that out, and the voltage goes up to around 14.5 or so when the alternator kicks in, and stays very consistent. I have no idea what the problem could be, and I've seen a few posts about similar issues, but no solutions. HELP!
It is extremely annoying and distracting, and would like to get it fixed before I hand this car over to my younger brother.
If you have a aftermarket radio system I would double check that first,
If not I would check the wire harnesses in the engine compartment,
When you're on the gas the engine tweaks and puts stress on some of the harnesses, if there is a short in the wire harness it will drop the voltage, this will confuse the alternator's voltage regulator and cause it to kick on and off.
Posted on Mar 08, 2009
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