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-   -   Poor Mileage After New Transmission... (http://www.jeepgarage.org/f5/poor-mileage-after-new-transmission-5511.html)

Frankie 01-11-2010 09:15 PM

Poor Mileage After New Transmission...
 
Ive been averaging 11.3ish since I got it back doing the same driving that I have always done and got 15.6ish with!

Any opinions?

blackpepper 01-11-2010 09:21 PM

Re: Poor Mileage After New Transmission...
 
Don't trust the MPG on the evic.. see if your total milage per tank is suffering...

Frankie 01-11-2010 09:24 PM

Re: Poor Mileage After New Transmission...
 
Quote:

Originally Posted by BlackPepper (Post 130426)
Don't trust the MPG on the evic.. see if your total milage per tank is suffering...

Even if the EVIC is off, it would be always off...I doubt it would fluctuate that much in its "offness"!

LTrainGC 01-11-2010 09:26 PM

Re: Poor Mileage After New Transmission...
 
I'm sure they disconnected the battery when they replaced the trans.... that resets the EVIC.

The transmission also might not be its most efficient while it is "breaking in"

Robert Palmer 01-11-2010 09:27 PM

Re: Poor Mileage After New Transmission...
 
Welcome to my World.



(The poor mileage part) :D

blackpepper 01-11-2010 09:28 PM

Re: Poor Mileage After New Transmission...
 
I agree... just a thought!

Frankie 01-11-2010 09:28 PM

Re: Poor Mileage After New Transmission...
 
Quote:

Originally Posted by LTrainGC (Post 130432)
I'm sure they disconnected the battery when they replaced the trans.... that resets the EVIC.

The transmission also might not be its most efficient while it is "breaking in"

Good points! I hope it breaks in fast! LOL

Escape 01-11-2010 10:15 PM

Re: Poor Mileage After New Transmission...
 
It's colder so you let it warm up longer, therefor using more gas = less mpg per the EVIC.

Check it out with pen and paper and see.

mjl2610 01-11-2010 11:50 PM

Re: Poor Mileage After New Transmission...
 
I get about 10-13mpg during these months. Seems kinda odd that your mileage dropped so significantly just because of a new trans...

05quadratrac 01-12-2010 01:44 AM

Re: Poor Mileage After New Transmission...
 
I average about 10.5 on my 4.7l I have no idea how you guys are hitting 14+ unless you do a lot of highway driving.

blackpepper 01-12-2010 01:34 PM

Re: Poor Mileage After New Transmission...
 
I'm on the hwy 20% of my tanks and I drive up a hill daily and still average 12.xx MPG

dreamer1213 01-12-2010 06:47 PM

Re: Poor Mileage After New Transmission...
 
Yeah.....I think the EVIC was reset too. It'll take a a long while to get your average back up to 15.6 if you do mostly city driving Frankie.


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