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Old 04-02-2014, 08:48 AM
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Default 96 Bronco engine problem

Hey guys we have a 96 full size bronco with a 351 EFI. It acts like it is shifting between drive and overdrive going down the road. My mechanic says it is in the engine but can't pull a code off of it as only happens at highway speeds. Any ideas what it might be as my mechanic is stuck and it's my sons birthday tomorrow.

Thanks

Steve
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Old 04-03-2014, 06:24 AM
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I actually had this same issue with my 97', by chance have you had headers installed ? Check the transmission wires around the pan and area where the headers (or exhaust come near.) Mine were all melted together and crossing the signals to the tranny.
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Old 04-03-2014, 08:15 AM
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Thanks Slim will check that. No headers though.

Steve
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Old 04-04-2014, 10:44 PM
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tow haul switch short?
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Old 04-04-2014, 11:47 PM
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Can try unseating the electrical connection harness on the tranny, cleaning both sides with compressed air, adding some dielectric grease & reseat it back together. May have some corrosion up in there crossing signals.
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Old 11-02-2015, 11:50 PM
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little late but if anyone needs good Bronco Tech or even Ford pickup info for anything 78-96, I admin over at this place: www.FullSizeBronco.com
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