Jeep Cherokee 88

Tiny
JENALLI6799
  • MEMBER
  • 1988 JEEP CHEROKEE
I have a 88 jeep cherokee 200000 miles 6 cylinder 4x4 and I am getting 10 miles to the gallon, and there is a lot of black smoke what could the problem be?
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Thursday, September 6th, 2007 AT 10:46 PM

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Tiny
GRICHARDS
  • MEMBER
Black smoke generally means that your fuel mixture is too rich, which makes sense if your gas mileage is that bad - burning more gas per mile travelled.
Have you had a decent tune up in the recent past? Air filter could be clogged/dirty, Timing off, Plugs fouled, dirty carb or fuel injectors, while you're at it check the distributor cap for cracks, burned terminals inside, check condition of rotor. Just a good tune-up would be a good starting point. If problem still exists, post back - an Oil Company spy may have reprogrammed your engine computer in the middle of the night, telling it to run rich so you'll have to buy more gas $$$$ - Nahhhhh! Good Luck!
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Saturday, September 8th, 2007 AT 6:29 AM

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