coolant temps?

[njmudrat]

Got my insight hooked up checking my deltas....86 outside and cruising on the highway for around 30min at 60-70mph,no load and my coolant stood around 210-216 and oil was 210-218.The oil and coolant stood pretty close to eachother with oil being around 1-4 degrees higher..But than sometimes the coolant would rise 1-4 degrees higher than the oil...Is that normal?...At one point doing around 65-70 the coolant temp shot up to 223 with the oil around 221-224 but than the fan kicks on and brings the temps down to around 212-216..Honestly I had my truck for 5yrs now and to me it always ran hot because I would always hear the fan kick on......But now that I can check the temps I wonder what my temps will be on like a 95-100 degree day..And i'm not even pulling a trailer..........

[bismic]

That seems a little hot to me for a stock truck without towing.

I don't think it is hurting anything though since the fan brings it down.

Things you might check:
loose belt
plugged radiator fins (or something reducing the normal air flow)
extra heat from sticking turbo
sticking thermostat

[lenzhotrod]

I agree that does seem high on the coolant temp. How does the insite take readings? Does it use factory sensors or are they installed. If installed , where are they installed? If factory is used I would verify that the reading is correct. Easiest way to verify is look at all temp sensors after a cold soak and the readings should all be close to the same(within a couple degrees).

[ExtremeFord4x4]

That does seem a little hot. I know mine was at 190* and that was high 90* weather today.

[njmudrat]

Thx guys..Bismic I will check all those things...How would I know if thermostat is sticking or not working?....And how do I find it?...thx

[bismic]

The thermostat is cheap, I would just replace it.

Thermostat (doesn't include the o-ring): 3C3Z-8575-AA
Thermostat Housing O-ring: 3C3Z-8255-AA

[lenzhotrod]

I totally agree.

[2003kingranch]

Thats hot. when its 100+ degrees outside my truck runs ECT-190-192 EOT-195-200 at 70 mph, cooler at 55.
When its -20 - mid 70's ECT- 188-190 EOT 191-195.

Towing 10k+ my truck runs those temps yours does. id start by replacing the t-stat. im not sure on the condition of your cooling system but your rad could be getting plugged up. externally your rad might be full of stuff. washing it out couldn't hurt

[lenzhotrod]

Yours look perfect.I just noticed the icon I picked is named liar.

[njmudrat]

Is the thermostat easy to change out?...And where do I locate on the engine...thx