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Old 19-07-2019
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Rubicon Azza  Rubicon Azza is offline
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Join Date: Jul 2019
Location: Geelong
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Default Suddenly using more fuel

Hi Guys,
This is my first post.

I have a 2016 built JK unlimited Rubicon (Registered in 2017)
It has Uneek front bar(with winch), Uneek4x4 rear bar(winch also) and uneek4x4 roof rack system.
Safari Snorkel(don't ask, when I bought it didn't realize aev is much better)
GME cb radio, throttle control, 2inch ome lift kit, Dynamic black steel rims on 35s. 68l aux petrol tank, custom muffler, full tow pack and red ark controller,
Spot lights and side and rear lights, diff and transmission breathers and even side grabbers in the corner of front passenger to get in easier. I may have forgotten a few other mods.....

Had my jk for 2 1/2 years now and love it but a problem has come up.

I came back for an easy run into the high country and back.
Didn't have any problems driving back home on highway that day at all. But heard a wooshing sound later that night when I was told to get eggs and milk from the shops.

Turned out that was the precursor to the pulley and belt come off.
When it happened I could barely turn the car into a park to get out of the road I was driving on.
That's not the problem though.

That got fixed by jeep under warranty.

But ever since then the car has been using way more fuel.
3 litres at least and more depending.
I have had it on dyno and had it back at jeep.
Computers say it's fine.
Talked to my mechanics I know (they're trusted, not randoms) and we don't know.

I have gone through 4 tanks testing shit out and there is no doubt is using way more fuel than it used to.
There are no changes to the car to add to the fuel cost. All the accessories were on there for at least a year prior to this

What could be some reasons that all of a sudden it's chewing the juice?

Could it be still something to do with pulleys and belt?
Or brakes/hand brake?
Sensors?