power loss, "stalling" - JeepForum.com
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post #1 of 2 Old 07-08-2017, 05:50 AM Thread Starter
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1998 XJ Cherokee 
Join Date: Jul 2017
Posts: 1
power loss, "stalling"

Hey all, my jeep is having serious power issues. I just replaced the TBS and IAC because I was having codes for throttle issues. It fixed it for a minute, but now it's "stalling" in low gears, especially when it's been running a while. It idles super rough at stoplights, RPMs jumping betwen 500 and 1500, and it sounds like it's misfiring. When pressing the accelerator, it'll start and then there's little to no response past 10 mph. I have to punch the gas several times and it'll jump up and go finally but very rough and still sounds like misfiring. I've currently got transmission codes, air intake temperature codes, and still some throttle codes. I don't have a cat or bank 2 O2 sensor due to other issues a while back. But I haven't had those for 9 months, so not sure if that's related to my new problem. Kinda lost right now where to start on this. But it's becoming very unreliable and it's my DD so... HELP!

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post #2 of 2 Old 07-08-2017, 09:06 AM
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2000 XJ Cherokee 
Join Date: Apr 2002
Location: out in the garage - Minneapolis
Posts: 25,728
Install a cat converter and fresh NTK ( not Bosch ) O2 sensors.

Solve ALL of the Check Engine Light trouble codes.

Buy genuine Jeep parts for engine and computer sensors. Once you have quality sensors that work right, you can determine if there are any other issues causing the symptoms.

Most auto parts stores sell cheap crappy Chinese made parts, some that even come with a "Lifetime Warranty". These parts are poorly manufactured and/or made from inferior materials. They are often out of specification, or even failed, right out of the box. The ones that are not faulty many times will have a short service life before they fail. Always buy top quality replacement parts and genuine Jeep engine sensors. Numerous threads detail long and frustrating searches for a "problem" that ended up being cured simply with genuine Jeep repair parts.

Cheap parts are cheap for a reason.


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