Hello everybody , I've been noticing my temperature gauge reading high , but not reaching the "red" area. Warning light works and the fan kicks on when it's needs too.
When constant city / stop and go driving in first and second gear , this tends to happen.
While on the expressway in 4th gear , the temp gauge is perfectly fine just below 220.
I believe my thermostat was replaced , my radiator cap appears to be original , and my coolant reservoir is clean. No visual dents in the under-body coolant tubing.

So what could it be , air in the system? Funky gauge? Water pump belt tension?
I want to know what you guy's think , thanks a bunch.
-Joe.

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1985 Pontiac Fiero GT.
1987 Merkur XR4Ti.
1986 SAAB 900 Turbo.
1994 Ford Taurus SHO ( Sold )
Subaru Justy , SAAB 9000 , Honda CRX , Isuzu Impulse , or a Pontiac Sunbird Turbo wanted.

When the car is cold is there still coolant in the overflow reservoir? Is the water pump original? Do you get hot air from the heater?

quote Originally posted by Gall757: When the car is cold is there still coolant in the overflow reservoir? Is the water pump original? Do you get hot air from the heater?

Yup there's coolant in the reservoir cold , not sure if the pump is original , yup heat works swell.
-Joe.

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1985 Pontiac Fiero GT.
1987 Merkur XR4Ti.
1986 SAAB 900 Turbo.
1994 Ford Taurus SHO ( Sold )
Subaru Justy , SAAB 9000 , Honda CRX , Isuzu Impulse , or a Pontiac Sunbird Turbo wanted.

Some replacement water pumps had plastic impellers. They often got loose on the shaft and did not spin very fast. The only way to be sure you don't have one is to replace the pump, so it's not the first thing you do.