2006 PSD temp issue?? - Ford Powerstroke Diesel Forum
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Old 10-07-2012, 01:19 PM

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2006 PSD temp issue??

I have an 06 6.0 automatic. It never reaches full temperature. Today it started out at about 38 degrees and it fired right up but the coolant needle never moved after 20 minutes of running. I drove about 90 miles on the highway with the cruse set at about 75 mph and the needle never went up past what would be the 1/8 tank mark if it was the fuel gauge. If im driving around town, stop light to stoplight it will move up a tiny bit more but never full temp. Is this an issue? It runs soooo much better if its almost to the full temp spot but It never stays there. Even after riding around town and almost getting it there, I get on the highway and I can watch the coolant gauge fall to the "C". Just kinda wondering about it.
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Old 10-07-2012, 01:26 PM
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The factory gauge isn't accurate enough to give you a answer, you should be monitoring all your temps/psi/volts with a aftermarket solution.

Write Up: Monitoring the 6.0L PSD.

Once you have a accurate temp reading, we would be able to point you in the right direction. Now if you just wanna throw parts at it by guessing, start with a new thermostat.

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Old 10-07-2012, 04:11 PM
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What temp outside? When I lived in AK I would block off the grille, at about neg 15 or less OAT, I'd have troubles ever getting the needle to move. Based on the time of year, unless your in North Pole Ak, that's not your issue. Your thermostat is stuck open most likely. It's the big hose to radiator, drivers side up front, base of that hose , engine side, remove the hose then the two bolts remove the thermostat. Replace that.
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