wrench light?????what does it mean???
#31
My code is the "P012F" for the oil cooler efficiency .. I just can't come to terms with it. My oil cooler/egr cooler has less than 2k miles on it!!
#32
Mine has less than 400 miles and it was running that way within 50 miles of changing it. I had replaced the thermostat, my ECT are now 190, but the EOT's went higher as well. I'm at a loss what could be causing the EOT's to still be higher? Cheezit, have you seen situations like this before?
#35
#37
Join Date: Oct 2009
Location: N. Fort Worth, tx
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there are very few t-stat failers as well, we just dont see it here. Ive had 2 turcks with p012f both varified oil cooler issues.
a t-stat fail sould cause ect to kind of bounce as it tries to open and close. a ect or eot sensor can be tested for bias when cold soaked overnight. they should read close to IAT2.
Do not compair it to IAT1 because the heater element in the maf sensor.
a t-stat fail sould cause ect to kind of bounce as it tries to open and close. a ect or eot sensor can be tested for bias when cold soaked overnight. they should read close to IAT2.
Do not compair it to IAT1 because the heater element in the maf sensor.
#38
#39
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a word of wisdom. the issues with the 6.4l radiators failing, egr cooler issues, and front cover cavatation has been linked to that concern. I think the $25 part may warrant replacment based soly on that alone.
#40
#41
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but you are focused on a time frame of days, and months nither of wich have any bearing. the focus should be on engine hours and milage. has the op check for things like atf, fuel, oil in the degas jug? was the engine really flushed with vc9? has the maintance been done at 5k or 200 hours as it should be? Did who ever that worked on the truck really replace the oil cooler? after all how do you think new oil cooler kits wind up on ebay? Most are not listed by the good tech fairy.
My .02
#42
#43
it is possible.
but you are focused on a time frame of days, and months nither of wich have any bearing. the focus should be on engine hours and milage. has the op check for things like atf, fuel, oil in the degas jug? was the engine really flushed with vc9? has the maintance been done at 5k or 200 hours as it should be? Did who ever that worked on the truck really replace the oil cooler? after all how do you think new oil cooler kits wind up on ebay? Most are not listed by the good tech fairy.
My .02
but you are focused on a time frame of days, and months nither of wich have any bearing. the focus should be on engine hours and milage. has the op check for things like atf, fuel, oil in the degas jug? was the engine really flushed with vc9? has the maintance been done at 5k or 200 hours as it should be? Did who ever that worked on the truck really replace the oil cooler? after all how do you think new oil cooler kits wind up on ebay? Most are not listed by the good tech fairy.
My .02
#44
Hmmm... ok it is on my to do list with the coolant change.
Since that time it acted up (one of the first warm days after a very cold winter), it has behaved fine.
Not a single recurrence.