3 sentences not bad for raymond. I wish he'd learn how to take off the caps lock...

I'm thinking if it was the water pump, the OP would have seen leakage.
look over the entire car for white residue on it. as the coolant evaporates it leaves a dry chalky residue.

is the upper radiator hose hard after a drive?

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!