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Old 05-16-2016, 05:36 PM
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Dead spot when I stomp on gas pedal?

I've noticed since i bought my 2011 JGC 5 months ago that when on the freeway and stomping on pedal to pass cars I get nothing. The jeep pauses for a couple long seconds before reacting. This could easily have caused an accident had I just jumped out and anticipated the car to accelerate hard. Is there a TSB or Recall to fix this? It's my first jeep and I love it, but have had module recall done and have been sent a mirror in visor notice. Also notice 1 of the horns doesn't work. I'm out on surgery right now so if there is a flash that can be done I'd love to get it done now. Thanks in advance.

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Old 05-16-2016, 07:44 PM
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Re: Dead spot when I stomp on gas pedal?

Following.
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Old 05-17-2016, 11:06 AM
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Re: Dead spot when I stomp on gas pedal?

What engine?
Cant help but to say mine only hesitates to kick the trans down. I have had the DTCM flashed a few years ago for the transmission shudder at low load.
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Old 05-17-2016, 02:29 PM
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Re: Dead spot when I stomp on gas pedal?

It's a 2011 grand Cherokee with the 3.6L motor
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Old 05-17-2016, 03:10 PM
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Re: Dead spot when I stomp on gas pedal?

I own a '11 JGC and can honestly say I have never had that problem,if I recall correctly,I do believe there was a "dead spot" on hard acceleration due to gear ratio,IF I remember correctly,but again,nope,never had a problem,that being said,have never "stomped on the accelerator",(just using the term you mentioned),at highway speeds or local driving my JGC performs as expected.
Have you considered taking it to your local Dealership to get an opinion to see if,infact there is something that needs fixed?Hope you get this problem corrected as I am sure it gets very annoying and on occasion,a worry.😊
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Old 05-17-2016, 04:50 PM
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Re: Dead spot when I stomp on gas pedal?

My 2011 3.6 has a lag. I'm looking into the Sprint Booster. It doesn't add power but changes the way the electronic gas pedal operates. Supposed to eliminate lag.
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Old 05-17-2016, 05:51 PM
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Re: Dead spot when I stomp on gas pedal?

I had one reflash done couple years ago when still under warranty. I have had a couple close calls where I made a lane change in stop/go traffic, stepped on the pedal and nothing, very slow to downshift, feels like an eternity.
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Old 05-17-2016, 07:12 PM
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Re: Dead spot when I stomp on gas pedal?

What Wicked described is what's happening. It's very frustrating when it happens. Think there is a TSB flash I can look into.
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Old 05-18-2016, 09:20 PM
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Re: Dead spot when I stomp on gas pedal?

Quote:
Originally Posted by JG24Fan View Post
It's a 2011 grand Cherokee with the 3.6L motor
Ah, sorry. Not a fair comparison. Different drivetrain here.
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Old 05-19-2016, 04:38 PM
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Re: Dead spot when I stomp on gas pedal?

Not sure if this will help, but it's worth a try...it's free

Throttle calibration can substantially improve throttle responsiveness over "factory standard." Many people notice what appears to be sluggish throttle response or a "dead area" at initial accelerator depression. Throttle calibration can take care of these.
1) Insert ignition key and turn to "ON" (not start).
2) Wait for all idiot lights to go out. Check
Engine Light may remain on.
3) Slowly depress the accelerator pedal all the way to the floor.
4) Slowly release the accelerator pedal until it's all the way back up.
5) Turn the ignition key to "OFF".
6) Start the engine.

Most drivers notice an immediate change in throttle response, but depending on your driving style, you may need to repeat this procedure periodically due to the computer's adaptive programming. You likely need to repeat this procedure any time the battery is disconnected.

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Old 05-19-2016, 04:49 PM
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Re: Dead spot when I stomp on gas pedal?

2011 has electronic throttle? I have a 2015, just installed an aFe Sprint Booster Converter - basically it tricks the software and throttles faster than normal. It says it will increase acceleration, not sure if it "technically" does that, (can probably get same acceleration by slamming the gas pedal to the floor), but at a minimum it definitely increases the response of the throttle. It has 2 modes, Sport and Race. I basically drive in Sport mode now, so much more responsive. Found it on AutoAnything.com.
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Old 05-19-2016, 07:39 PM
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Re: Dead spot when I stomp on gas pedal?

Have never noticed this issue at all with my '11 WK2 Laredo X.

I'd try a few simple solutions first. Wouldn't hurt running a few bottles of Techron fuel additive through it if you've never did that before. One bottle will probably not do much... but by the second or third bottle things really improve if the injectors or fuel filter are gummed up.
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