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I would say the thermostat is not operating correctly. When I bought my truck, I got 170 ECT readings at operating temp. I changed to a new Ford thermostat, and it went to 192. Now, 30,000 kms later, my regular ECT is 189.
I'm considering trying to get a 195 or 200 thermostat soon, to see if t will increase my MPG.
Check your top Rad hose during the warm up cycle. It should stay cool (realtively) until the thermostat opens, and then it would feel much warmer. If the therm is partly stuck open, then the hose would just warm up progressively with the engine.
2006 F250 ext cab, short box, 4x4 auto
ARP studs, BPD EGR cooler, Ford oil cooler, HPOP and turbo line updates (by Bernhausen @ 219K Kms)
BPD billet water pump, AFE CAC pipe
Eng. strategy VXCF9H7; TW Extreme tune
4" SS Magnaflow turbo back w/ muff & hi flow cat.
Edge CTS monitor w/ EGT
CAT EC-1 coolant w/ bypass filter
stock air intake w/ shielded Zoodad
3.73 axles, 275/70R18 BFG A/Ts
To do: injectors, Snow Stage 2 water injection, blue spring, fuel press sensor
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