HELP idk what to do

[97ranger19]

ill be driving at like 20 then my temp gauge will go to hot then when i give it gas and speed up it will go back down it just keeps doing this randomly depending on my speed or rpms... someone told me my thermostat is bad idk help

 

[caveman_joey]

have you checked the obvious like coolant level to make sure there isn't an air pocket or that there is enough coolant to be circulated if the level is low the water pump won't move it around until you hit higher rpms, is the radiator core plugged or blocked up keeping it from releasing heat until you force more air through by going faster. i had an issue once in the winter where my water temp gauge showed the engine still cold after warming up for 10-15 minutes but as soon as i increased rpms the temp came right up to where it should be. of course your thermostat could be sticking and isn't opening until more pressure forces it open when you increase speed. i hope some of this helps to solve the problem and hope you get to root of the problem. good luck.
i wouldn't think it would be too likely but there is the possibility that the clutch on the cooling fan could be acting up not engaging as it should therefore not pulling air through the radiator to cool the engine.

 

[nitrofan1]

I'm callin fan clutch on this one.

 

[H munster]

^^^^ Im going with fan clutch also.

 

[97ranger19]

now it doesn't do it anymore and i changed nothing idk what to do should i even worry about it

 

[sholzy]

now it doesn't do it anymore and i changed nothing idk what to do should i even worry about it

Have you checked your coolant level? Let it warm up with the cap off and the climate control temp selector set to hot.