Excessive fuel use

Tiny
JIMMY 20
  • MEMBER
  • 2008 DODGE RAM
  • 97,000 MILES
Excessive fuel use
Monday, March 4th, 2013 AT 1:52 AM

6 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
Don't push so hard on the gas pedal. Don't let it warm up so long when it's cold.
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Monday, March 4th, 2013 AT 1:57 AM
Tiny
JIMMY 20
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Ok
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Monday, March 4th, 2013 AT 2:00 AM
Tiny
CARADIODOC
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Did you have a question? What makes you think it's using too much fuel?
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Monday, March 4th, 2013 AT 7:40 AM
Tiny
JIMMY 20
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  • 4 POSTS
Went from 18 MPG to 8 or 9 miles to gal
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Monday, March 4th, 2013 AT 3:59 PM
Tiny
JIMMY 20
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  • 4 POSTS
Pulling trlr is worse 5to6 mpgif can't fix problem well trade it off was a good truck
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Monday, March 4th, 2013 AT 4:06 PM
Tiny
CARADIODOC
  • MECHANIC
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To use that much fuel would have to be pretty obvious at the tail pipe. Has the Check Engine light turned on? If it has, there's a diagnostic fault code stored in it. That will indicate the circuit or system that needs further diagnosis.

Also look for a vacuum leak. The oxygen in the extra air will be detected by the oxygen sensors as a lean condition, and the Engine Computer will respond by commanding more fuel to go into the engine. No matter how much more fuel it keeps requesting, there will still be that extra oxygen. Oxygen sensors don't detect too much fuel, just the amount of oxygen.
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Tuesday, March 5th, 2013 AT 1:36 AM

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