My JK will barely push itself down the road!
Thread Starter
JK Newbie
Joined: May 2011
Posts: 15
Likes: 0
From: Las Vegas, NV
My JK will barely push itself down the road!
I have an '07 JK that will not maintain 70 mph up a small hill or against a slight head wind without down shifting (auto trans). I could see a mountain or a 30mph wind but it does it all the time. Does anyone else have this problem? Any ideas why or how to fix it? I have 33's and a 3' lift. It did it before with the stock tires also.
Thread Starter
JK Newbie
Joined: May 2011
Posts: 15
Likes: 0
From: Las Vegas, NV
Something isn't right. Even upgrading to 33s shouldn't cause the kind of power loss you are describing. I'm assuming you've checked all of the maintenance related items - air filter, plugs, etc. that could affect performance. How many miles do you have on it? What kind of fuel have you been using. You may want to run a couple of bottles of injector cleaner through the engine and see if premium fuel makes any difference. Although I doubt it would be this - a restricted cat convertor causes major power loss.
You are talking small inclines and not crossing the Rockies, right?
You are talking small inclines and not crossing the Rockies, right?
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JK Newbie
Joined: Feb 2011
Posts: 21
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From: Mineral wells tx
You don't really need to chip it. I have a 3.5" lift with 35s and I just put 4.88 in two days ago, and have no problem now top speed is 75 at 35 hundred rpm but has so much power 6th gear accelerates up a hill and can increase speed just fine.
