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bad mpg help

Old 02-06-2014, 04:36 PM
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Default bad mpg help

i just bought my first jeep, a stock 1993 cherokee xj with 170k. i just changed the oil, air filter, all brakes, all tires to 235/75-15, radiator flush, added some stp fuel system cleaner, i know i need to replace tie rod, damper, sway links, and steering shaft. im getting about 50 to 60 mpg per tank.... i was thinking about changing 02 sensor and spark plugs, any other ideas on where to start? would the tie rod and etc have an effect on mpg?
Old 02-06-2014, 04:51 PM
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Since somebody deleted my post for an unknown reason, I'll repost it...

I'd do a transmission drain and fill (or three) with Dex/Merc. Just for the hell of it.

According to RockAuto, 93s have 1 sensor. Use NTK.

I use Champion Copper plugs. Very cheap, and the 4.0s love them.

Try this: https://www.cherokeeforum.com/f2/free-quick-fix-41821/

One adjustment I would make to the above... when opening the TB to WOT, don't do it from the engine bay. Go step on the gas pedal.

I doubt any of these will fix your issue completely, but they might help you out a bit.

Edit: nevermind. Your original thread got moved to OEM tech.

Last edited by tssguy123; 02-06-2014 at 04:54 PM.
Old 02-06-2014, 05:41 PM
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http://www.partsgeek.com/gbproducts/MC/2226-07098983.html?utm_content=MC&utm_term=1991-1995+Jeep+Cherokee+Oxygen+Sensor+Bosch+Upstream+91-95+Jeep+Oxygen+Sensor+1993&utm_source=google&utm_m edium=ff&utm_campaign=PartsGeek+Google+Base&gclid= CIqu1qi7uLwCFcERMwodYi8AgQ

Would that work for the 02? And I just adjusted the cable seems to have made a difference thanks.
Old 02-06-2014, 05:48 PM
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Originally Posted by chris1292
http://www.partsgeek.com/gbproducts/MC/2226-07098983.html?utm_content=MC&utm_term=1991-1995+Jeep+Cherokee+Oxygen+Sensor+Bosch+Upstream+91-95+Jeep+Oxygen+Sensor+1993&utm_source=google&utm_m edium=ff&utm_campaign=PartsGeek+Google+Base&gclid= CIqu1qi7uLwCFcERMwodYi8AgQ

Would that work for the 02? And I just adjusted the cable seems to have made a difference thanks.
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Use NTK
Old 02-06-2014, 05:57 PM
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Where is that from all the ones I see are double the price?
Old 02-06-2014, 06:14 PM
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Originally Posted by chris1292
Where is that from all the ones I see are double the price?
Rockauto, like I said in my post
Old 02-06-2014, 07:26 PM
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Originally Posted by tssguy123
Rockauto, like I said in my post
Have you ordered from them? They have ssome mixed reviews?
Old 02-06-2014, 08:11 PM
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Originally Posted by chris1292
Have you ordered from them? They have ssome mixed reviews?
Yep, just ordered from them. Got both o2s (my 96 has two). No complaints. Got a free magnet too.
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