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Jan 5, 2018 | 08:47 PM

#16

Ferguson65

Logistics Pro

Joined: Mar 2005

Posts: 2,536

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From: southeast PA

Quote:

Originally Posted by Dance

@Ferguson65 If you don't mind me asking, where are you from? I'm in the Reading area, Exeter township.

I'm in Pennsburg. Not to far southeast of you.

Jan 6, 2018 | 07:17 PM

#17

jfritz_drfritz

Mountain Pass

Joined: Dec 2009

Posts: 224

Likes: 7

From: Regina, Saskatchewan

Something is wrong if you can drive 15 miles at 60 mph and not get significant heat. Mine has the supplemental heater but not withstanding that the oil temperature is above 30 degrees Celsius within 3 km of leaving the house at 50 km/hr and not plugged in (5w-40 T6). Mine would be at 90 Celsius (pretty much full operating temp) irregardless of ambient if I drove 15 miles at highway speeds. I live in Saskatchewan

Jan 7, 2018 | 06:54 AM

#18

Deuce40s

Posting Guru

Joined: Oct 2013

Posts: 1,039

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From: NC

Quote:

Originally Posted by BOHAWG175

Your oil is 100? Heater heats the coolant not the oil. Do you have an aftermarket heater? When I start mine after being plugged in all night the coolant is always 81 degrees on the button then drops immediately as it flows through the block the coolant temp drops right away then comes back up. When I started it at 10 below this morning, my oil read 6 degrees.

The display says the oil is around 90-100°. Trans is generally at ambient temp. I don't have anything aftermarket. I'll check on my EZ-lynk to see what my coolant temps are next time.

Jan 7, 2018 | 12:40 PM

#19

otnot

Freshman User

Joined: Oct 2016

Posts: 49

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When it gets cold up here in Alaska I just put a piece of cardboard in front of the radiator. Oil temp stays at 190 and my mileage goes up.

Jan 8, 2018 | 05:56 AM

#20

Deuce40s

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Joined: Oct 2013

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From: NC

Quote:

Originally Posted by BOHAWG175

Quote:

Originally Posted by Deuce40s

The display says the oil is around 90-100°. Trans is generally at ambient temp. I don't have anything aftermarket. I'll check on my EZ-lynk to see what my coolant temps are next time.

I was wrong about my temps. I almost exclusively remote start in the morning while packing up the truck and have it plugged in all night. Today I didn't remote start and had the EZ-Lynk running before starting to check the temps. Ambient temp was 9°F this morning. Coolant was right at 100.4° before starting, 82° after starting. Engine oil and trans were around 40°.

I watched the engine oil climb quickly after starting which must be why I thought the oil was receiving some sort of conduction/convection heating from the coolant and block. It was up to 90° in about a minute.

Jan 8, 2018 | 08:26 AM

#21

Dance

Thread Starter

Freshman User

Joined: May 2006

Posts: 32

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From: Reading, PA

Quote:

Originally Posted by jfritz_drfritz

This is why I asked if I could have a bad thermostat.

3.73 gears @ 60 MPH is about 1650RPM, flat road very little load on the engine, water temp very slow to rise. Does Ford put in different thermostats depending upon on where you live?? When I ordered this truck, the block heater was an option because of where I live (I did order it). From my OP I did not have the truck plugged in,it was 4 degrees outside.

Again my observation has been that the (my) 6.7L takes longer to heat up compared to my old 7.3L. I am also assuming that the 6.7L would heat up quicker because of emissions and EPA regs. Again these are observations, I'm no expert at all, just comparing the 2 trucks.

Jan 8, 2018 | 08:57 AM

#22

jfritz_drfritz

Mountain Pass

Joined: Dec 2009

Posts: 224

Likes: 7

From: Regina, Saskatchewan

If you have your heater fan running full speed your engine would prob take longer to warm up. I leave mine on auto. The 7.3 heats up fairly quickly because of the exhaust back pressure valve and blows warm air maybe a little quicker than it might otherwise because of location of the turbocharger. Thermostat are all the same

Jan 8, 2018 | 09:43 AM

#23

Dance

Thread Starter

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Joined: May 2006

Posts: 32

Likes: 2

From: Reading, PA

Quote:

Originally Posted by jfritz_drfritz

Thank you Sir (@jfritz_drfritz) for your response, I hope I didn't come off as sounding like a "dick", that was not my intention at all. As you can tell no expert here, I wasn't even aware of the "exhaust back pressure valve" on the 7.3 and what its purpose was. Is that why the 7.3 went into high idle at cold temps or is that a completely unrelated topic? Mine did it all the time, until you hit the clutch/brake pedal.