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Old 03-10-2010, 05:32 AM
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Temperature help

The past 2 days i've been noticing that my EGTS are running about 150-250* degrees hotter and my EOT has been running 5-6* hotter... Could anyone tell me what could cause this?? since i've had the truck my EOT has usually ran around 190* during normal driving and now it's starting to run 195-196* sometimes even hits 197 or 198*.... And i believe there's a loss in power...here's my couple of questions:

-Is 190 more of a normal temp or 195?
-Could this be caused by injectors not working correctly?> been having injector issues
-Could the 20* warmer weather the past week cause this?
-And i've heard higher EGTS = lower MPGS, is this correct?

i think that's all i have right now, thank you in advance for any advice and if i'm just worrying about something that's nothing please let me know i'm being stupid
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Old 03-10-2010, 11:40 AM
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Someone please chime in here before i do damage to this thing with out knowing...
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Old 03-10-2010, 12:17 PM
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An EOT of 190 seems kinda low. I normally run an ECT of 194-196 and EOT of 200 deg. When im towing I will see 203-205 and it quickly goes down when I stop. What have your EGT's been?
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Old 03-10-2010, 12:24 PM
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for the past couple of months i've been running an EOT of 190-192 (unloaded) and ECT of 188-190 and my egts on the interstate used to be between about 600-750 and for the past 2 days they've been running 900 cruising down the interstate, and when i hit a small grade that it'll hit 1,100.... i wonder why my EOT would have been running under normal temps for so long??
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Old 03-10-2010, 12:41 PM
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Check your air filter lately? If its clogged that could be why your egts shot
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Old 03-10-2010, 12:52 PM
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i don't believe it's too dirty? i could take a peek at it tonight though i guess... but what about my high EOT?
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Old 03-10-2010, 01:07 PM
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Maybe a plugged oil cooler, that's merely a shot in the dark from me though . Check the diff in temps between your ECT and EOT, if its more than 20*, I think that means you have a plugged oil cooler. The oil cooler is before the EGR cooler, so it makes sense in my feeble mind
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Old 03-10-2010, 01:14 PM
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yea there's never more than a 5* difference in the 2.... i'm stumped...
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Old 03-10-2010, 01:21 PM
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That's a tough one, better for a techie see this than me
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Old 03-10-2010, 01:23 PM
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i'm waiting for one to chime in....
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