Higher EOT after oil change?
Thread Starter
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Elder User
Joined: Aug 2009
Posts: 583
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From: SOUTH TAMPA
Alright so from 2am till about 12pm the truck sat over night. Weather was about 72 degrees.
Initial Start up:
Got the TFT on the screen now:
About 7 minutes later:
at 12:08 pm
THE DTC's
AT 1:33pm
Truck sat till 9:32pm turned her on:
(61 degrees outside)
Then 30 min drive home there was about a 25 degree difference. I was trying to data log but didnt work so i dont have a picture. So i can say the filter kept the temp down some but still a big delta in the numbers
EDIT:
the logging shows: EOT @185 ECT @ 150 TFT@ 149 this is when I turned the truck off for the night
Initial Start up:
Got the TFT on the screen now:
About 7 minutes later:
at 12:08 pm
THE DTC's
AT 1:33pm
Truck sat till 9:32pm turned her on:
(61 degrees outside)
Then 30 min drive home there was about a 25 degree difference. I was trying to data log but didnt work so i dont have a picture. So i can say the filter kept the temp down some but still a big delta in the numbers
EDIT:
the logging shows: EOT @185 ECT @ 150 TFT@ 149 this is when I turned the truck off for the night
Hotshot
Joined: Apr 2010
Posts: 19,060
Likes: 238
From: Saratoga Springs,UT
Looking at the First 2 Pics the ECT was 4*f different and the EOT Had Not moved yet this leads me to think the ECT Sensor is Whacked out a little
How much run time was there between the First 2 Pictures??? I don't think its Much since the EOT had NOT Changed yet
How much run time was there between the First 2 Pictures??? I don't think its Much since the EOT had NOT Changed yet
Senior User
Joined: Apr 2009
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I would say the bigger issue is the low ECT after running. I'm going off memory as I type, but the highest the OP posted was like 171? I know there was one in the 160's also. He should be well near/above 190f, especially in florida. I'd be looking more toward the thermostat. Oil temps at 180 are fine. Water temps anything below 190 is a red flag for me.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
I would have to disagree. My water temp always, ALWAYS rises to several degrees hotter than oil within the first few minutes of run time. IMO, his sensors are fine, not that it wouldn't hurt to remove the connectors for them and clean them.
I would say the bigger issue is the low ECT after running. I'm going off memory as I type, but the highest the OP posted was like 171? I know there was one in the 160's also. He should be well near/above 190f, especially in florida. I'd be looking more toward the thermostat. Oil temps at 180 are fine. Water temps anything below 190 is a red flag for me.
I would say the bigger issue is the low ECT after running. I'm going off memory as I type, but the highest the OP posted was like 171? I know there was one in the 160's also. He should be well near/above 190f, especially in florida. I'd be looking more toward the thermostat. Oil temps at 180 are fine. Water temps anything below 190 is a red flag for me.
Thread Starter
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Elder User
Joined: Aug 2009
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From: SOUTH TAMPA
His initial ECT was 185* which is a bit low for the ambient he's running in, but his EOT was 211 at that time (after the filter change). I do agree that his sensors are fine though at cold start. The point of checking the sensors was to make sure it wasn't a sensor bias vs. an oil bypass caused by the AM filter. At this point I think he needs to change the oil filter, check the valves in the bottom of the filter housing, and see if his high delta is resolved. If not then there are other problems.
Oil cooler?
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
I haven't seen enough after your oil filter change (or I just missed it) to make that decision. To test it properly the truck needs to be fully warmed up and then needs a steady 65mph cruise for a few miles. Usually I'd say 30-40 miles would be sufficient to do the whole test, that's including warmup.
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Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
That would be Bodywerks, who is also posting in this thread--LOL. He didn't change his oil cooler base though, he deleted it with a bulletproof.
Cargo Master
Joined: Jun 2007
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From: Roseburg, OR
Hotshot
Joined: Apr 2010
Posts: 19,060
Likes: 238
From: Saratoga Springs,UT
I would have to disagree. My water temp always, ALWAYS rises to several degrees hotter than oil within the first few minutes of run time. IMO, his sensors are fine, not that it wouldn't hurt to remove the connectors for them and clean them.
I would say the bigger issue is the low ECT after running. I'm going off memory as I type, but the highest the OP posted was like 171? I know there was one in the 160's also. He should be well near/above 190f, especially in florida. I'd be looking more toward the thermostat. Oil temps at 180 are fine. Water temps anything below 190 is a red flag for me.
I would say the bigger issue is the low ECT after running. I'm going off memory as I type, but the highest the OP posted was like 171? I know there was one in the 160's also. He should be well near/above 190f, especially in florida. I'd be looking more toward the thermostat. Oil temps at 180 are fine. Water temps anything below 190 is a red flag for me.
You Misunderstood where I was going with it, And I didn't do a Very good job explaining what I was looking at
I understand by design ECT will lead the way until Normal temp is reached
True he may need a new Thermostat if it that Low
Right No Time at ALL had Passed between the 2 Screen shots I would have expected the ECT to Read the Same or within 1*f of the First screen shot
Does it read way different each time you open a new screen shot Like that???
Thread Starter
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Elder User
Joined: Aug 2009
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From: SOUTH TAMPA
i hope its justa t-stat or something. Blade im not sure what your asking? IN the first pic the tft was not there so I removed 1 PID and change it to the TFT...it was maybe 45 secs to a min between the first two pics
Lead Driver
Joined: Oct 2010
Posts: 5,420
Likes: 16
From: Ouray, CO
I believe your gauge is showing tft as the ect too. Try unplugging your odb device and then reinstall to fix it.
The ect should rise fairly fast compared to tft or eot.
My tft never gets above 160s, my ect and eot will both get to 190 eventually..
Can't see pics on my mobile, just going off the text.
Sent from my Sprint PC36100 using IB AutoGroup
The ect should rise fairly fast compared to tft or eot.
My tft never gets above 160s, my ect and eot will both get to 190 eventually..
Can't see pics on my mobile, just going off the text.
Sent from my Sprint PC36100 using IB AutoGroup