Question about 1990 Ford Thunderbird
There is a starter solenoid on the starter and another one on the firewall or inner fender.Follow the positive cable from the battery to the solenoid.Remove any covers that may be hiding it.Now,with the car in park or neutral and the park break set on you should be able to get it to crank by crossing the two large copper posts with a screw driver.If it cranks over now then you need to check for power to the small post with the black an red wire going to it.If you have power with the key in the start position then you need to replace that solenoid.If the is no power in that wire then you could either need a neutral safety switch or an ignition switch.If nothing happened when you crossed the posts on the solenoid then you either need a starter,the cables need to be cleaned or replaced,the nut on the starter solenoid could have loosened off,the small wire on the starter solenoid may have a bad connection or your battery does not have enough amperage in it to turn over the engine.Hope this helps.
Posted on Sep 12, 2010
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Posted on Jan 02, 2017
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