so i got this truck a few months ago flushed radiator droped to a lower thermostate but if i drive over 60mph for more than 2 or 3 mins my temp starts going up fairly quick from just under half way on gauge to around 3/4 of the way i always slow down or pull over cause its not in the red zone but dont wana crack a head or anything you can see and hear it boiling back in the resovoir when this happens i have to drive a lot but im on a budget so i dont wana do things i dont need my fan clutch seems to be working i dont know what is wrong with it any ideas since flush fluid is normal color no sedement put 180 thermostat in place of 190 thought making it cycle sooner would fix it

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92' 4cyl straight drive 2.3 liter 2wd

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Did you bench test the thermostat? If you did and everything else (radiator/gauge/pump) is good.....something is plugged up.

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2011 XLT 4.0 , Supercab 4 door, 2WD, 6 ft Bed. Extang Fulltilt Tonneau Cover, Gibson Dual Exhaust Split Side Exit, Air Box Mod, K&N Air Filter.

it never goes past half sitting in beach traffic or around the town driving only when im on hwy at hwy speeds could be stoped up dont even know where to begin to find a blockage tho im hopeing its not the pump but since it only happens at high speed im perplexed

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92' 4cyl straight drive 2.3 liter 2wd

At that speed, I'm thinking your fan belt is slipping .
If it's stretched out or the the tensioner is weak that may happen .

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2011 Ranger XLT 2x4,4.0 SOHC, 5 Speed Auto, 3.55 Rear. Oxford White.

Simplicity is the ultimate sophistication.

Torque it down till it breaks off, then back it off 1/4 turn.

welcome to FRF, Georgette!

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2001 Ranger Edge 4x4 (sold)
2006 F150 Lariat 4x4 (sold)
2007 Explorer XLT (Destroyed by Deer on highway)
2014 Explorer XLT (inherited from parents)

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White 2011 XL Reg Cab | Tint | 2.3L | Daily

2001 Ford F250 4x4 lariat 7.3L | Tint | 5" turbo back exhaust | Riff Raff 6637 intake | Hydra | Glowshift gauges | 6.5 lift | 20x14 | 36x15.50's