List,
Related on overheating...
My son has a Mercury Sable and it would overheat, tranny shift
funny, etc. So they took it to a shop and a $1,000+ later the shop
declared all was well. Head job, tranny flush, etc, etc. It seemed
to be somewhat better but over time it resumed its bad overheating
from time to time.
So when I got to the heat/ac course in my education at technical
school, I volunteered their car for a project. Long story short, my
instructor (a Ford master mechanic) watched it idle and watched the
water in the radiator reservoir and said it thought we should look at
the water pump. So off it came and guess what...the vanes were
totally gone and it looked like thin blades turning in the water and
you know how effective that was. So that got replaced but I figured
if all that metal was gone it had to be somewhere and I guessed the
heater core and radiator. SO the radiator came out and I'd estimate
that 20-25% of the lower cores were totally filled with shrapnel! So
I put a new radiator on, back flushed the cooling system (block and
heater core), exchanged tranny fluid and its been good as gold
since. They can even run the ac now!
My point is that id there is a bunch of "stuff" in the cooling
system, I'd darn sure flush the heater core and radiator. When I had
my TR4 motor rebuilt I had the radiator professionally cleaned and it
would sit in the summer heat and idle all day with out any
fluctuations in the guage.
Doug
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