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Discussion Starter #1
I just bought this 97 taurus with 130K on it as a fixer upper.
I have had 4 gen 1/2 3.0s before this and never had a engine failure.

This car had bad head gasket, and was blowing back out the degasser tank.
Got another 3.0 out of a car with bad trannie.

got it together, and it ran throwing O2 codes but running.
it would creep up to just about the top of the normal heat range.
It seemed also the fans would not kick in until it was dangerously close to the
top. The fans would come right on if you turned the air on.
(AC is empty, but turning it on made the fans kick in).

Tore it down and removed the water pump. It had a factory ford on it
and the blades were intact. It did look like it might have been scrapping on the
casting due to water pump bearing worn eccentric (i had that problem before).
It also has some corrosion on the pump. Hard to tell if it was leaking, or just spill over
from the prior motors bad head gasket blowing water out the degasser.

For good measure, i put a new aftermarket water pump on it.
It was flushed before this suposedly. While i had the water pump off, i flushed it
with a garden house through the two water pump openings to the block.
Ran the water until it was perfectly clear. Its was never dirty brown, only
a light haze or such. I also back fed water from the heater pump return hose
and tried to back flush it also.

During this, I also had the fans off and hosed the radiator off and blew compressed air
through it trying to get any debris off of it.

I also put in a new themostat with giggle valve (fail safe)


Put it all back together. its runs smooth. but the results are the same. It seems
to get very close to the top of normal and the fans don't kick on unti its very hot.
Is this normal for a gen 3? What else do i need to check on this?

I have not changed the O2 sensors yet. I think one or more got contaiminated when
the last engine blew its head gasket.

What are the symptoms when the cats are getting plugged up on these?

All this convoluted cooling plumbing makes me want to go back to a 93 or so.

bob
 

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Discussion Starter #3
Sounds like the gage sender needs replaced. Normal low speed fan turn on temp is 215F.
[/b]
I have run a cross a lot of posts about therse cars running hot. Assuming a normal
engine and good senders, where should the temp gauge be once its warmed up
in summer?


Since this car had issues before, i am suspicious of having another problem of some sort
like a partially clogged cat or such.

bob
 

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<div class='quotemain'>
Sounds like the gage sender needs replaced. Normal low speed fan turn on temp is 215F.
[/b]
where should the temp gauge be once its warmed up in summer?


[/b][/quote]

mine stays about a 3rd of the way up... but it kinda wiggles between that and a 4th in stop n go traffic...
 
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