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Re: cooling system on 1994 ford thunderbird
Does it run hot while driving or in traffic?
if running hot at idle could be water pump not circulating enough try revving engine some and see if temp comes down. also check your fan clutch.
if running hot going down road probably radiator
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Holts Wondarweld Flush engine. EXTERNAL CRACKS 1 Run engine until hot,drain off enough coolant to remove thermostat. 2 Remove thermostat. 3 Mix contents of can thoughoughly! and pour contents into thermostat opening. 4 Replace thermostat cover.& fill radiator with hot water,replace radiator cap. 5 Run engine at a fast idle for 15 mins,dont allow to boil.Top up if necessary. 6 Leave Wondarweld in system for 2-3 days then drain off,flush system replace thermostat and refill. HAIRLINE CRACKS 1 MIX thoroughly and pour into cold engine (radiator if it has a cap) 2 Run engine until hot. 3 Allow engine to cool then run again until hot. 4 Follow procedure 6 above. INTERNAL CRACKS 1 Follow external crack instructions except after pouring Wondarweld into engine remove spark plug from affected cylinder and run engine for 20 mins. If more than one cylinder affected run for 5 minute intervals. 2 Allow engine to cool then drain cooling system and refill with clean water. 3 Drain sump & flush,refill with fresh oil. Note:- 1/2 pint of Wondarweld for every 6 pints of water,DO NOT add antifreeze for at least 3 days after process.
Try with the small stuff first. Replace the thermostat. Before you do that, you should flush and refill your system with just water after the flush process. The bottle of solution that you put into your radiator to flush it and clean it has instructions, follow those. Then let the car cool down and drain the system and refill it with fresh water only. Run this water for a bit and then do it once more. Once cooled back down , replace thermostat and replace the 50/50 mix of antifreeze and water.
Check engine oil level as well, low oil will overheat engines quickly.
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !!
NEVER REMOVE THE RADIATOR CAP ON A HOT ENGINE. !!!
If it only is overheating when going slow, then one of three problems exist; One, there is not enough coolant in the engine. Check the level of anti-freeze in the truck, and top off as neccessary.
the coolant is not circulating through the radiator and engine properly. Check the Thermostat, and replace as neccessary. The Thermostat should be changed every couple of years or so, anyway.
the air flow over the radiator is impeded somehow. Does this truck have a elcrtic Radiator fan? Or is it mechanical, being ran off the motor with a belt? If it is electric, then check the fans RELAY to see that it is working properly, and check the fan motor too. Check that there is no debris in the radiator fins.
Hello! The heater core is partially blocked...I would suggest flushing the cooling system with the temperature control on high...NOTE...The type of anti-freeze used in your vehicle is DexCool...If another type is used it may damage the cooling system...To flush...Drain radiator...Fill with plain water...Run engine until thermostat opens...Turn engine off...Let cool then drain...Do this at least three times or until water drains clear...Install new thermostat...Refill with 50/50 DexCool...Leave the radiator cap off as engine warms...Allow all air bubbles to escape...Then install cap...
The down side of DexCool is electrolysis...Electrical current flowing in the cooling system which can cause the anti-freeze to "clump" blocking its flow...Periodic flushing eliminates the problem...
IF COOLING FAN STAYS ON WHILE CAR IDLING AND DONT TURN OFF YOUR ENGINE IS RUNNING A LITTLE HOT.YOU COULD PARTIALLY CLOGGED RADIATOR OR ENGINE BLOCK PARTIALLY STOPPED UP ALSO THE THERMOSTAT NOT OPEN ALL THE WAY.HAVE VECHICLE SCANNED TO SEE WHAT COOLANT TEMPERATURE IS IF HOT.HAVE RADIATOR SHOP PRESSURE TEST COOLANT SYSTEM AND FLUSH OUT RADIATOR AND ENGINE BLOCK CHANGE THERMOSTAT.