Doesn't get hot or overheat.. no bubbles in rad or oil. Goes from the 1/8
to half and down then back up.. not like every second but about every min or
2 while driving..Seen a TSB on it about erratic gauge so I thought I would
ask here.. Car has 145k and has sat 1 year.. I thought mayube the thermostat
was sticky but it has good heat ?.. Kinda stumped.. Any advice would be
cool.. I was planning on changing the t stat.. I don't know how to get air
out as the thing doesnt have a rad cap.. It has the bottle with lid type
Most cars I have had a bleeder valve but his don't I was going to run the
car with the rad lid off and see if that helps but we'll see.. Thanx for the
You should also check all the hose connections. Years ago I had a
Sable that developed an erratic temperature gauge. It also lost some
coolant over time. Eventually I figured out I had a high pressure
leak. Whenever the car got to a certain water temperature (and
therefore water pressure) some coolant would force its way past a hose
clamp connection. This would effectively lower the pressure in the
system, allowing more coolant to boil off, which immediately (but
briefly) lowered the temperature in the system. I finally located the
leak by the white residue the leak left at the leaky connection. In my
case it was at the radiator. The original spring clamp on the radiator
had been replaced with a worm gear clamp. This had been over torqued
and warped the plastic radiator fitting.
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