Poor gas mileage

Avatar
MJFREUNDL
  • MEMBER
  • 3 POSTS
I own a late 96 Jeep Grand Cherokee Laredo. It has the inline-6 4-litre engine and has low miles considering it's age. I bought it used from somebody I knew. I put fresh tires, brakes, rotors, and even a new trackbar. All stuff that was just worn out. When I had the wheels done I also had an alignment. I recently replaced the valve cover gasket and one of the pcv vents.
with all that out of the way...my wonderful jeep only gets about 12-13 mpg in the city. A friend of mine who has the exact same jeep gets at lest 15-18 in the city. any ideas?
Mar 20, 2007 at 8:45 AM
Avatar
MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
Start with 02 sensor and temp sensor..they are the most involved sensor fuel economy wise...
Apr 2, 2007 at 2:16 AM
Avatar
MJFREUNDL
  • MEMBER
  • 3 POSTS
Would a bad exhaust manifold (ie. leaking) make any difference in the problem?
Apr 9, 2007 at 4:50 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle