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Old 03-01-2018
oscar.kruse  oscar.kruse is offline
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Default 3.6 Pentastar acceleration hesitation / hiccup

So I have an issue where sometimes during acceleration, my acceleration just cuts out for about half a second and then resumes as normal. Causes a violent jerk of the car. It is as if my foot was slipping completely off the pedal. I assure you it is not. It generally happens when I am accelerating medium to hard from the bottom of the rev range right through to the top 3rd.

Happens maybe 2 in 10 times when accelerating hard/medium.

Been happening since i purchased the car (2nd hand@ 50,000KM) which was about 10,000Km ago.

I have tried different fuels including 98, 95 and 91, seems pretty consistent.

I constantly do scans with my (Bluedriver) code reader and do not get any related codes at all.

Have checked intake pipes for any leaks and cant find anything. Air filter has been cleaned.

Car details:
2012 JKUR Manual 60,000KM
No mods to engine except AirRaid intake from and AEV snorkel
Both exhaust mufflers have been replaced with smaller ones
37s and 4.88 gearing


Any help or similar experiences with solutions would be much appreciated.


Thanks guys