86 bronco transmission modular

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Jul 7, 2011 | 03:25 PM

roxxiiee1324

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86 bronco transmission modular

would a bad transmission modular cause white smoke to come out tail pipe?

Jul 8, 2011 | 01:47 AM

greystreak92

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From: Gateway to the West

Welcome to FTE and the Big Bronco Forum. We will do our best to get you the most accurate info we can.

In short, no. White smoke out the tailpipe indicates water/coolant entering the combustion chambers. This happens most frequently when either a head gasket fails or a head cracks. Neither is an inexpensive thing to fix. Hope for the head gasket to be the issue that way you may be able to re-use the block and heads.

A failed transmission regulator would show up as the transmission not shifting properly or not at all.

Jul 8, 2011 | 02:07 AM

StuntmanFyke

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From: Central Illinois

Not to disagree, but on old carbed models with the vacuum modulator, i've seen em throw tranny fluid through the intake... though very rare

Jul 8, 2011 | 02:17 AM

greystreak92

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That'd be one seriously @#$%'d regulator but I can see how it might happen. Smoke should be more blue than white burning ATF or oil but if there isn't much, it could be hard to tell.

Jul 8, 2011 | 02:23 AM

StuntmanFyke

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I saw it on an old Granada a friend had years ago... But it was the cause

Jul 12, 2011 | 10:23 PM

roxxiiee1324

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thank you , not to sure about the info im recieving else where, maybe i can find it here. Is there even a transmission modular on a 86 bronco 5.0 ?

Jul 12, 2011 | 11:40 PM

greystreak92

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Depends upon which transmission you have. Is it a three-speed automatic or four-speed automatic? The four-speed (AOD) has a fourth gear overdrive and no modulator. It uses a cable system to control shift points. The three-speed (C6) has a vacuum actuated shift modulator.