any thoughts - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 4 (permalink) Old 06-21-2015, 03:55 PM Thread Starter
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any thoughts

Hey guys I got a 2004 6.0 125000 miles only mods are not cat egr delete custom tow tune from kem I have been noticing my ect temps jumping around while driving example drove down south last week 300 miles running between 80-90 eot temps stay pretty steady ect stay within 10-20 degrees 95+% of time then the ect would drop as much anywhere from 10-50 degrees for a few seconds up to 5 min then back within 10- 20 degrees same thing towing the boat yesterday for about 50 miles. I did have the oil cooler replaced last year the truck has been running great ever since and still is. I have what looked to be some coolant residue on the tank not sure but cleaned it up going to monitor it. was thinking I got a sensor going bad? just looking for some input. Also month or so ago I sprayed the engine down and the sensor went haywire showing - ect temps and showing codes on scan guage I cleared them and unplugged the batteries and had no issues. thanks in advance guys.....bill
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post #2 of 4 (permalink) Old 06-21-2015, 04:51 PM
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I'd vote new sensor or possibly bad connector.

Early 2004 F-250 4x4 CC 6.0


2nd owner, ARP studs 1 at a time, Some parts missing in the exhaust path, BD intercooler hoses, Blue spring, MC filters, Sinister coolant filter, Exhaust manifold gaskets, WARN lockouts, Gold coolant, zoodad mod, autometer boost gauge, high idle mod, Scangauge 2, SCT X3 tuned from KEM, autometer fuel pressure gauge, Archoil 6200 in the fuel, FICM by Ed w/ATLAS40, autometer pyro gauge,'08 Alum Rear Diff cover, 5w-40 Rotella T6 w/ Archoil 9100 in it, zert in the slip joint, harpooned fuel tank, 6.4 banjos


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post #3 of 4 (permalink) Old 06-21-2015, 05:18 PM Thread Starter
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was thinking the same thing is this something I can get at the auto zone/napa where on the motor is it and how hard is it to replace?
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post #4 of 4 (permalink) Old 06-21-2015, 11:20 PM
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They are both up on top by the oil filter. The 6.0L bible will show you where.

As hyper as we all are with our deltas I would rather purchase the sensors from Autonation White Bear Ford and wait for the shipping rather then worry that aftermarket sensors might show a few degrees difference due to tolerance control.
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