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First check af level (when cold) then if ok, start and check for operation of thermostat by squeezing upper hose. Once it warms up, thermo will open and hose will become hot and hard. You should be able to feel circulation. Next watch all hoses and turn on heater to allow water to go through core. You have 4, upper, lower rad and 2 for heater, look for leaks. If no leaks let it run and see if temp will hold or if it continues to increase. If it holds test af w.hydrometer, if not confirm fan operation and you may consider flushing rad. Also look for pinhole leaks on rad while hot and running. Check dipstick for signs of water in oil.
What else can I help you with?
Why is your truck running hot without a thermostat?
Could be a bad water pump.
Do you need to have your truck running when you bleed the brakes?
No - you do not need to have the truck running.
Why would truck spark knock under load with premium gas in use?
Running hot or timing too far advanced
Why is your 1991 F-150 running hot when it sit running?
If the truck only runs hot when it's not moving, then its most likely an issue with the fan clutch. Especially if the air conditioning is performing poorly as well. Start with the fan clutch.
How can a truck not have gas in it?
By running out of it.
Why are running boards used on trucks?
A running board is a narrow step under the side door of a truck. Running boards are used for easier entry into a truck, especially a truck with a high entrance. Running boards are also used as a fashion statement.
Do you leave truck plugged in after truck is running?
No. You unplug the block heater BEFORE you start the truck.
Why does my windshield shake when my truck AC is running?
The truck needs a tune up.
Why does the transmission fluid only leak when the truck is running?
The pump is only on when running.
Why is your 95 Buick Roadmaster running hot?
why is my 1995 buick roadmaster running hot
Do you have to have the truck running when you refill the ac?
yes
What is the lightest truck?
hot wheels
