Overheating, water pump, etc. Problem Found!!!!!!
j8k3sp00n at gmail.com
Sat Sep 30 01:10:27 EDT 2006
I'm choosing this way to respond to those that offered suggestions rather
than reply to each one.
I did this morning what I should have done about $250 and 2 weeks ago. I
went to Radiator Specialties, the radiator shop that rodded out the used
radiator I installed, and got their wrench to diagnose the overheating
problem. Result: Cooling is normal; problem is in the gauge.
I suspected the gauge at first but thought I eliminated it as a problem
early on. I rigged the instrument cluster with some jumpers so I could
measure the supply voltage and reference voltage with the car running. The
TCA700Y that I put in there recently was providing about 20% too much
voltage. I found the lowest voltage TCA700Y that I had in my parts stash
and put it in. I got 10V reference voltage, the spec is 9.5 - 10.5 V. At
first blush that solved the problem.
Lesson learned. Go to a wrench familiar with cooling systems that has a
laser temp gun; they can do wonders toward deciding what's awry.
Thanks again for the help.
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