High fuel consumption

Tiny
SRAMAN
  • MEMBER
  • 1996 JEEP GRAND CHEROKEE
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 162,972 MILES
Since I got my vehicle at the beginning of the year. I noticed it used up quite a lot of gas. I figured straight six, four wheel drive it might be normal. But then fuel consumption has gotten worse. I have also noticed lately it takes a lot of power to accelerate. Now my gas gauge is not moving from empty.
Wednesday, November 29th, 2017 AT 8:34 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Check general tune. Check plug gaps, ignition leads, air and fuel filters, fuel pressure and scan for codes. Get a live data read and check O2 sensor operation. Failed o2 sensors will default to full rich and this is a fairly common problem.
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Wednesday, November 29th, 2017 AT 9:46 PM

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