I have a 1998 ford truck that keeps getting hot on me. I have changed thermostat, coolant. What can it be?

My truck runs fine on highway, when i get into stop and go traffic it begins to get hot. Sometimes the engines shuts off on the highway.
I have a 1998 ford truck that keeps getting hot on me. I have changed thermostat, coolant. What can it be?
Have you tried checking your radiator? Make sure there is the proper amount of water and coolant. Also, check your oil. Make sure all your fluids are at their proper levels.
I have a 1998 ford truck that keeps getting hot on me. I have changed thermostat, coolant. What can it be?
how does the radiator look? is it clean or does it have a ton of dirt clogging the fins on the radiatior? also check your waterpump
the radiator might be clogged... after you drive it for a couple days and if the fluid is a darker color then your radiator is dirty,,



another one could be that your fan might be malfunctioning..



or their might be a glitch on the computer that tells the thermostat to open and close .. which wont give the engine enough water that it needs...



plust the water pump might be leaking water...or not circulationt he water



just take it to the mechanic..
1 Inspect ANTIFREEZE NEEDED Coolant level low or flow is restricted.



2 Inspect BELT Incorrectly routed, adjusted, tensioned, missing, or worn water pump belt(s).



4 Inspect RADIATOR CAP Worn or damaged radiator cap



5 Inspect THERMOSTAT Thermostat stuck closed



6 Inspect FAN BLADE Broken, missing, or defective fan blade(s).



8 Inspect WATER PUMP Damaged, worn or leaking water pump.



10 Inspect COOLING FAN CONTROL Faulty cooling fan control or circuit.



11 Inspect COOLING FAN SWITCH - RADIATOR Faulty radiator cooling fan switch or circuit.



12 Inspect ENGINE TEMPERATURE SENSOR Faulty engine temperature sensor or circuit.



13 Inspect TEMPERATURE SWITCH Damaged or faulty temperature switch or temperature switch circuit.



14 Inspect FAN CLUTCH Worn, loose or faulty fan clutch.



15 Inspect PORTED VACUUM SWITCH Damaged, leaking, or faulty ported vacuum switch.



16 Inspect RADIATOR Obstructed radiator core or radiator cooling fins.
Your Clutch on your fan could be bad. Also if your fan shroud is gone it can do that. The radiator could need flushed. You timing could be advanced too much. You might have to go with a hotter thermostat ( doing this gives the antifreeze in the radiator more time to cool down ). Your water pump could be getting weak. As far as the shutting down on the road, It might be getting your coil too hot and shorting it out or something like that. Post again with more symptoms on the shut down for a better answer.



I would start by getting a good radiator flush from the local parts store. Check to see if the fan blades on your truck seem loose, and then spin it too see how much resistance it has. It should be hard to spin but not turn the pulleys. If it spins too easy or does not spin it is bad. Also make sure the belt(s) are tight enough. Next I would check the timing to make sure it is ok. This is less likely but I have seen it cause overheating before.



I hope that I have been helpful. Good Luck
I have a 1997 F-150. I had the same problem. It turned out that I had to get the radiator replaced. Runs like a champ now.
radiator flush at parts store

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