Question about 1986 Ford Bronco

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Ford transmission 86 4wd will not shift to high gear

I have an 86 ford bronco 4wd will not shift to high gear fluid level is ok

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  • demonrazgriz Dec 19, 2008

    tranny wont stay in gear at all. when in third and doing over 35 i have to ease the gas up to the correct rpm level and the tranny will catch and i can continue. however if i let off the gas it fall's right out of gear agian and i can't use the engine to break or any thing shifting down doesn't help either. the fluid is full.

  • avshirley Mar 04, 2009

    Is 4000 rpm's considered too high at 55 mph?

  • truckerhank6 Apr 05, 2009

    My 1986 Ford Bronco has the same problem after 35 mile an hour it won't go into the next gear and I believe it actually slips out of gear and drops back into nuetral. The rpms will jump up like it's in nuetral. Could it be an adjustment? Also the passing gear cable that hooks onto the throttle pops off. It was fine earlier and then on my way home from a trip today this started happening. I checked the level which was showed to much fluid and noticed the cable had popped off how ever I put it back on and it didn't make a difference also I had the same problem in both overdrive and drive. Also we had changed the tranny screens and put two bottles of Lucas in with the transmission fluid change two days ago. I should mention four days ago I had some back yard mechanic put a used motor in it I notice a lot of vacum lines were broken. I tried putting them back together may be incorrectly. One I actually plugged with a screw.

  • Anonymous Mar 13, 2014


  • Anonymous Mar 16, 2014

    checking the transmission fluid level on 95 bronco



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It is hard to say from your description what the problem is ... could be linkage issue ... could be trans is going as is with the other poster ...
Losing overdrive. Clutches (bands/clutches) have had it. Be careful driving without that top gear ... doing too high a speed without the appropriate gear causes extra stress on your engine that could accelerate further problems. Try to do only driving at a low enough speed that the top gear is not missed ... will help the vehical last as long as possible.

Posted on Dec 19, 2008


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Hi. Before you do anything, check the transmission fluid level with engine running and in park. If the fluid is at the right level, there are 2 levels, a cold and a hot level. If the fluid is low then simply add fluid to correct level and check for leaks in hoses,transmission pan, external oil cooler if installed and axel seals. Normally fluid levels will not go down except if there is a leak somewhere. If the fluid smells burned, then you have most likely will need an overhaul as the tranmission has overheated due to high loads (pulling a trailer in hot temps, or simply because of age and the resultant excessive slippage of the friction plates.
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