reduced engine power & overheat
#11
03-19-2010, 09:08 AM
well, mine is back at the dealer. second time since my first post. they changed the clutch fan. the truck still does the same thing as originally but is getting worse. the still can't figure it out. i found out that when this truck first went in, awhile ago, they found some sort of paper substance blocking the thermostats. the tech showed me the thermostats, he's never seen anything like it.
#12
03-24-2010, 02:04 AM
well, mine is back at the dealer. second time since my first post. they changed the clutch fan. the truck still does the same thing as originally but is getting worse. the still can't figure it out. i found out that when this truck first went in, awhile ago, they found some sort of paper substance blocking the thermostats. the tech showed me the thermostats, he's never seen anything like it.
#13
03-26-2010, 10:28 AM
back at the dealer again. now the tech tells me that the oil cooler is clogged. when the oil temp got so hot, it supposedly melted the glue on the oil filter, which went to the cooler. also they have seen the oil gets so hot that it melts the standpipe in the oil filter housing. it's going to be another cab off repair. filter housing, flush the oil system, and new cooler. i don't understand how they can flush the system. i just want a new motor, i don't think it will ever be right.
#14
03-27-2010, 05:28 PM
back at the dealer again. now the tech tells me that the oil cooler is clogged. when the oil temp got so hot, it supposedly melted the glue on the oil filter, which went to the cooler. also they have seen the oil gets so hot that it melts the standpipe in the oil filter housing. it's going to be another cab off repair. filter housing, flush the oil system, and new cooler. i don't understand how they can flush the system. i just want a new motor, i don't think it will ever be right.
to properly flush the system would want the pan off to clean it out as well.
#15
04-11-2010, 10:15 AM
Diesel Enthusiast
sound like the same thing i had with my 04 6.0... they kept changing the cam censer... then ford told them that there was something wrong with the cooling in the heads... cab off and they pulled the heads. motor was scorched so at 35k they put a new one in. i hope its not the same thing showing up with the 6.4
#16
04-22-2010, 01:50 PM
sound like the same thing i had with my 04 6.0... they kept changing the cam censer... then ford told them that there was something wrong with the cooling in the heads... cab off and they pulled the heads. motor was scorched so at 35k they put a new one in. i hope its not the same thing showing up with the 6.4
#17
07-23-2010, 02:09 AM
#18
10-15-2010, 07:48 AM
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Join Date: Oct 2010
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Overheating!!!!!
i have an 08 f550. when towing a load, the temp guage pegs hot and odometer display says reduced engine power and truck won't go over 20mph on the highway. this is random and only happens with a load. it doesn't actually overheat but the guage pegs to hot. any help would be greatly appreciated, since the dealer says it's fine with no codes. thank you.
---AutoMerged DoublePost---
Check out TSB 09-16-7. If all else fails you may need a re-calibration to cure the overheat and power loss problems.
---AutoMerged DoublePost---
Further sniffing around finds that TSB 9-18-15 supercedes 9-16-7. Re-calibration may still be required. Good luck.
Last edited by mechzz13; 10-15-2010 at 07:48 AM. Reason: Automerged Doublepost
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