poor mileage
Infidel
Joined: Aug 2003
Posts: 1,115
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From: Elkhorn WI
alota thing effect mileage...i was doing great before bellowed up-pipes, van turbo and Airdog, then went down around the 11-12 mark...changed oil back to dino Rotella and back up to 16ish~
Could be a sensor, dirty oil, brakes dragging...
Could be a sensor, dirty oil, brakes dragging...
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Posting Guru
Joined: Jun 2007
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From: OAHU,KANEOHE HAWAII
I'm running 33's but when i first got my truck in 06 I was getting 18 mpg even when i got my chip i still average the same miles.Then in 08 i started seeing a decline in mileage,i thought changing my injectors might help a little even if they are bigger.Today i did the math and it's 12 mpg.
Infidel
Joined: Aug 2003
Posts: 1,115
Likes: 2
From: Elkhorn WI
with a decline over time in mileage it might be that sensor, front of engine, right above water pump. its mounted on a light gauge steel peice and is flimsy. So when you take the sensor out make sure u got another wrench on the bottom of that steel piece where the tube connects to. Check the opening of the sensor, if its glogged or almost then chances are the tube is also. Easiest way to clean is it to take the tube off and throw some brake cleen at it. EDIT: might get a new sensor too
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Fuel pressure? Do you know what you are running while under load?
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Posting Guru
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From: OAHU,KANEOHE HAWAII
I only checked it @ idle 55 psi.I just figured that it had enough fuel cause it still has alot of power but I'll check it with a loner hose.
Post Fiend
Joined: Nov 2007
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From: Payson, AZ
Bay the way, I will be installing my new injectors tomorrow.
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From: OAHU,KANEOHE HAWAII
What size injectors are you installing?
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If it is at the regulator it would be post filter. Let us know what you find when check it under load.