Exhaust temp higher than normal

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Jun 9, 2010 | 11:45 PM

diesel_hillbilly

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From: Fort Hood, TX

Exhaust temp higher than normal

My 97 f350 has been running alot hotter exhaust temp lately. Use to I could have my 28' horse trailer behind it it and only be running around 400 exhaust temp now i am running at about 500 to 600 with out a trailer I did and oilchange and fuel filter about 1000 miles ago and no change. I also noticed my fuel milage went down a from about 25ish miles to the gallon to 18 to 20 now.

Any ideas as to what could be causing it?

Thanks in advance.

Jun 10, 2010 | 12:45 AM

Jim Hunt

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Quote:

Originally Posted by diesel_hillbilly

If you were only running 400 with trailer in tow I am thinkin your gauge was bad. I normally run 600 at highway speeds towing nothing 8 to 9 pulling 5th wheel on highway

Jun 10, 2010 | 07:06 AM

Talyn

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Joined: Oct 2003

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From: Ashland City, TN

25mpg is pretty high too. unless you drive 55 everywhere.

Granted, I've got it, but I don't think you'll get it with stock sticks and a DP tuner.

Jun 10, 2010 | 09:38 AM

diesel_hillbilly

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From: Fort Hood, TX

Yea that is correct on the fuel I do run 55 when I travel I dont get in hurry. but i could have sworn I was running lower maybe my mind is just playing tricks on me. thanks for the info