I recently bought a 1990 Bronco II 4x4 (2.9L V6) for the winter.
One of the problems it came with was a significant oil leak. I had
the engine resealed by a dealer. After that, they told me their tech
thinks the radiator is leaking. I decided to have them leave that
When I drove the vehicle home, the engine still had white smoke
flowing up from around the exhaust manifold. It doesn't smell like
the burned oil smell from before I had it serviced. This only occurs
after the engine has warmed up. It is not characteristic of dew or
condensation that is evaporated as the engine starts.
In a different thread someone suggested that coolant
from a radiator leak that is could be what's burning.
Based on that suggestion and the comment from the dealer about a
radiator leak, I installed a new radiator last night. Since then I've
driven that vehicle only about 12 miles total, but after both short
trips I still saw the smoke from the same area.
I will be monitoring the coolant level over the next couple days to be
sure that the new radiator and the old hoses aren't (still) leaking.
I also wonder if perhaps the smoke is some remaining fluid from the
old radiator's leak that hasn't yet burned or washed off. Is this
possible or reasonable?
Someone else suggested that "[the] modulator valve (external on the
transmission) can leak and suck in tranny fluid to the intake". I
looked through the Ford service manual and can't find mention of any
such valve. Does it make a difference that my vehicle has a 5-speed
manual transmission, not an automatic?
Any suggestions as to the cause and what I should be looking for?
The Consultant's Curse:
When the customer has beaten upon you long enough, give him
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