Name that part
Moderator
Joined: Nov 2007
Posts: 22,415
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From: Denver Metro Area, CO
I would also be looking into the thermostat; my engine warms up VERY fast, generally in less than 10 minutes.
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
The fan doesn't really come into play in engine warmup. That's because the thermostat is shut until the engine reaches the set-point of the 'stat, and during that time essentially no water circulates through the radiator.
Laughing Gas
Joined: Nov 2011
Posts: 1,033
Likes: 11
From: Wausau, WI
What brand thermostat are you running? The reason I ask is because I have nothing but poor performance with all the aftermarket ones. Low heat, long warm up times, etc. When I put a Ford one in, all problems went away, heats quicker and hotter and actually lower temps on the temp gauge which I thought was a little weird (with the aftermarket thermostats, the temp gauge was reading higher). IMO, all the aftermarket thermostats are junk.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
E4TZ-9G464-A replaced E3TZ-9G464-A, E3TZ-9G464-F & E5TZ-9G464-A
E4TZ-9G464-A =
DON'S TRUCK SALES in Fairbank IA has ONE = 319-635-2751.
-----------------------------------------------------------
E3TZ-9G464-F =
PEROGIE ENTERPRISES in Highstown NJ has ONE = 609-448-5593.
E4TZ-9G464-A =
DON'S TRUCK SALES in Fairbank IA has ONE = 319-635-2751.
-----------------------------------------------------------
E3TZ-9G464-F =
PEROGIE ENTERPRISES in Highstown NJ has ONE = 609-448-5593.
Thread Starter
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Junior User
Joined: Mar 2010
Posts: 66
Likes: 0
The fan takes a while to loosen up/unlock. I figure that keeps it from warming up quicker - maybe not.
The thermostat is a Stant I believe. I actually replaced the thermostat, clutch and radiator. I don't know at what point in the process it started staying cooler, but it takes quite a while to warm up and it never gets past the half mark on the temp guage.
The thermostat is a Stant I believe. I actually replaced the thermostat, clutch and radiator. I don't know at what point in the process it started staying cooler, but it takes quite a while to warm up and it never gets past the half mark on the temp guage.
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
Cripe, even when new.... How many degrees is NORMAL?
Thanks to Bill for the updated availability information, I'll maybe get an OSI (Obsolete/Superseded/Interchange) manual someday.
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FTE Legend
Joined: Jul 2010
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From: Northeast, OK
I've replaced thermostats recently and tested two different instrument sets, and find that 180 degrees is about the N on NORMAL and 195 degrees is about the R on both sets of instruments.
However, that is with a very, VERY limited set of thermostats, 1 for each temp, and instruments - 2. So, take these readings with a huge mound of salt as the voltage regulator on each instrument panel will vary as will the resistance of the sensor and the actual opening point of each 'stat.
If your fan is making a difference on your engine getting warm then the problem is not with the fan but with the thermostat. I'm not saying the fan isn't locked up, but that won't change the warmup if the 'stat is closed as there is essentially no flow through the radiator.
However, that is with a very, VERY limited set of thermostats, 1 for each temp, and instruments - 2. So, take these readings with a huge mound of salt as the voltage regulator on each instrument panel will vary as will the resistance of the sensor and the actual opening point of each 'stat.
If your fan is making a difference on your engine getting warm then the problem is not with the fan but with the thermostat. I'm not saying the fan isn't locked up, but that won't change the warmup if the 'stat is closed as there is essentially no flow through the radiator.
Moderator
Joined: Nov 2007
Posts: 22,415
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From: Denver Metro Area, CO
The kind with the real fine wire wrapped around a Popsicle stick and a brass wiper that glides up & down it...
And, that wire eventually wears through and breaks...
And floats around *****-nilly in the little, triangular compartment, contacting the brass thing *****-nilly...
And you can CLEARLY see why the dash gauge seems so phuqued up.........
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Junior User
Joined: Mar 2010
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I think I see what you're saying about the fan. I just figured all that extra air being sucked onto the engine was prolonging it. It seems the clutch doesn't unlock until 5 or so minutes after cranking.
I'm not opening that can of worms again though unless it overheats. Sheesh. Some things I get tired of working on and that whole bad clutch/leaky radiator/suspicious thermostat thing really got old. Took me months to finally realize the clutch was bad b/c it had resistance and it wasn't until I had it removed to get to the leaky radiator that I realized it was bad.
This truck has really tried my patience. But, I'm learning... I think...?!?
I'm not opening that can of worms again though unless it overheats. Sheesh. Some things I get tired of working on and that whole bad clutch/leaky radiator/suspicious thermostat thing really got old. Took me months to finally realize the clutch was bad b/c it had resistance and it wasn't until I had it removed to get to the leaky radiator that I realized it was bad.
This truck has really tried my patience. But, I'm learning... I think...?!?
Laughing Gas
Joined: Nov 2011
Posts: 1,033
Likes: 11
From: Wausau, WI
My fan does the same, seems to take forever to kick off. But, the truck will cook you out of it. Running a Ford thermostat. It is the job of the thermostat to regulate the heat in the engine. If it sees really cold fluid from the radiator, it will close (or partially close) to keep the heat in the engine. The fan doesn't come into play that much until the thermostat is opened and the entire cooling system is up to temperature.
Stant is one of the brands I've had problems with. When I worked parts, I would not recommend any brand except OEM (whether it be for a Ford or GM). I have had several customers that have had heat problems come back and thank me for referring them to factory parts as they have solved their problems.
FTE Legend
Joined: Jul 2010
Posts: 32,875
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From: Northeast, OK
Bingo! That's what I've been trying to say. Thanks for saying it so succinctly.
Post Fiend
Joined: Jul 2004
Posts: 8,786
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From: Northern California
With mine, you have to be parked on level ground to have them read accurately. My front tank will vary 1/2 a tank if you are below 3/4s depending on how bumpy the road is.
Mine could probably be fixed by bending the catch on the float arm so it doesn't wiggle as much.On yours, like CTUBUTIS said, there is a fine wire that's probably worn through. Most likely a new sending unit would fix that.