Question about 1990 Ford F350
I replaced both batteries in a 1990 f350 diesel and now it acts like it doesn't want to pull. Is my transmission now messed up?
It shouldn't be,however.....when replacing batteries,or simply disconnecting and reconnecting to clear a code for example,always hook up the positive terminal first and the negative terminal last,and,with the ignition OFF.Infrequently,if a battery is hooked up with the key in the ON position,it can damage the vehicles computer....(PCM,TCM,BCM,etc etc)And the reason for hooking up the negative terminal LAST is to avoid arky sparky's off of your wrench which can also damage the vehicle's computer (s).Try disconnecting both negative terminals of both batteries and let sit for minimum 20 minutes,then reconnect,and see what you have.
Posted on Jul 08, 2008
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Posted on Jan 02, 2017
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