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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

temp values seem high?

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Old Nov 24, 2014 | 06:05 PM
  #1  
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happscrap
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From: Clearwater, Fl
temp values seem high?

Coolant 206
eot 208
trans 206
delta 2.3 wasn't at 65 mph ... Under 50 around town.
Here's my question. I installed a new mishimoto radiator, and did a flush on coolant system. Added 4 gallons of cat1 rated coolant and a new stant thermostat. Was trying to wait on my mishimoto thermostat but need to get truck back together. Wouldn't you know it showed up late today...
anyways.. cool night here in florida... driving around town city traffic always under 50mph.
Are theses values on the high side? I am running new t6 and arcoil. Also.. any issues with the stant thermostat and would you tear it out to put the mishimoto thermostat in as it's on the work bench. I was going to wait till next coolant flush but now I'm questioning it.
 
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Old Nov 24, 2014 | 06:17 PM
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206 on the Trans is really high for just driving around. Check same Temps after a 12 hr cold soak.
 
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Old Nov 24, 2014 | 06:22 PM
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In TP did you add the Ford pre defined pids for the Powerstroke?

As far trans temp, there are 2 trans gauges, use the other one.
 
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Old Nov 24, 2014 | 06:28 PM
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I have both trans temp on. The other one says 174
I think I'm pulling out the stant thermostat as well.
 
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Old Nov 24, 2014 | 06:34 PM
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The 174 one is correct. That other one just duplcates your ect....I dunno why.
 
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Old Nov 24, 2014 | 06:46 PM
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From: Clearwater, Fl
Ok.. so 174 sounds better.. lol
what about the other temps. The value sheets say 190. Will the mishimoto thermostat drop them a little? It's not even summer here ... I can only imagine how much this engine is going to work during June and july.
 
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Old Nov 24, 2014 | 06:52 PM
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Your coolant temp seems high for putzing around. See if there is another ect gauge. (I can't remember) also, do you recall your fan speeds when ect was 206?
 
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Old Nov 24, 2014 | 06:58 PM
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From: Clearwater, Fl
Up around 300 to 1000rpm.
Off and on...
 
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Old Nov 24, 2014 | 07:01 PM
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From: Clearwater, Fl
Yesterday. .. I was running straight water and no thermostat.. temps never got over 187
today.. I flushed system and added four gallons of cat1 and installed a new stant thermostat ... drove for 1 hour around town and temps as stated above.
 
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Old Nov 24, 2014 | 07:24 PM
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mishimoto offers a 200*F thermostat the oem is 190 or 192 can't remember. If you have the 200*f mishimoto in theory it should not Lower them unless your other one is stuck. I never have watched my temps in stop and go traffic. Try to get out and do the 65mph run on the flat and see where your temps are after things stabilize. Did you have the a/c running? The condenser in front of the radiator gets pretty darn hot and can raise temps a little.
 
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Old Nov 24, 2014 | 07:28 PM
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Yes... ac was running on low.
So your saying in theory the mishimoto might raise temps even more being a 200*
not saying the stant thermostat isn't sticking as it's brand new. It could be though.
 
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Old Nov 24, 2014 | 07:33 PM
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What temp is the Stant?

My 200° Mishimoto runs 203-204 pretty consistently
 
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Old Nov 24, 2014 | 07:36 PM
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Not really sure. I just went and asked for thermostat for my truck. .. lol.. I wasn't planning on keeping it in as the mishimoto was on the way. But I'm right at 198-207
 
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Old Nov 24, 2014 | 07:38 PM
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Something to consider the Ford thermostat fails in the open position. Most stants fail in the closed position. I do not know if stant has a specialone for the 6.0 or not. All I have ever used on a 6.0 is Fords

May not be related to your problem.
 
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Old Nov 24, 2014 | 07:38 PM
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Maybe the Stant t-stat is a 200 deg. Then it's within the margin of error.

.
 
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