Question about 1996 Jeep Grand Cherokee

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2006 jeep liberty: rough idling, when I press on the gas the car jerks, check engine light is on, replaced the fuel injector #1, coil, and spark plugs. Took it to firestone and they said the fuel injector is working and they thought it could be the pcm. These are the codes that I get P0301, P0300, P0301.

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  • 51 Answers

P0301 is a misfire in cylinder 1. This can be a lot of different things, but it seems you've already been throwing parts at it. I would recommend a compression test to test for a leaking gasket or a bad piston ring or valve.

Posted on Nov 04, 2013

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Posted on Jan 02, 2017

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SOURCE: 1991 jeep cherokee running rough.

It could be the alarm. Lock the drivers door with the key and unlock it this will reset the alarm if thats the problem.

Posted on Sep 10, 2008

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my 2004 jeep cherokee. heats up when i turn on AC

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SOURCE: 1999 Jeep Grand Cherokee Died while driving home

check the fuel pump fuse/relay, could be just bad enough to cause an intermittent start/no start. and check fuel pressure,spark and the crank position sensor.

Posted on May 27, 2009

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1 Answer

How do I fix a multiple misfire with a rough idle and auto transmission that shifts rough. I have an obd 2 trouble code PO300?


need to find out why the misfire bad coil ,wire ,wrong plug gap etc check injectors and fuel presure --what ever is causing misfire is also probably causing problems with transmission shifting

Oct 16, 2016 | Cars & Trucks

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I have a 2002 jeep liberty limited. wont stay running. have to stay on the gas for it to continue to run. if u let off it will die out. sounds rough an it sounds like a something flappin. wat is wrong


Could be any number of things. Bad spark plug wires. Vacuum leak. Fuel pump on the fritz. Bad TPS. Buggy fuel injector.
Is the check engine light on?
Need more input!
Either way it sounds like a qualified mechanic needs to take a look at it for you. It'll save you the aggravation of searching perpetually for a free quick fix.

Dec 16, 2014 | 2002 Jeep Liberty

1 Answer

2005 Hyundai Tucson jerking in park and when coming to a stop light. Jeep runs rough and sometimes shuts off when making hard left or right turns. Could smell exhaust gas.


you have clogged fuel injectors, take it to a dealership only! they are the only place that has the proper set up to clean them. My 89 Mustang GT had the exact same problem and ford service center cleaned them for $80 and it was 100% better never had another problem, sold the car at 276K miles and it still ran perfect with no drips or leaks, the tranny finally went out. Never use those cleaners sold at stores they do more harm than good! they will void your warranty also.

Oct 30, 2014 | 2005 Hyundai Tucson

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Why is my 2002 jeep liberty 3.7 running rough. Replaced catalytic converters, replaced #2 and #4 fuel injectors all due to codes pulled. still, have to give gas for vehicle to idle. New codes are 112


backfiring is an indication of incorrect spark firing order or timing check that the HT leads are not touching each other and that the firing order is correct

Jul 18, 2014 | 2002 Jeep Liberty

2 Answers

What could this be?


CODE 301 IS #1 MISSFIRE 300 IS RANDOM MISS FIRE 201 IS INJECTOR FAULT . I WOULD START BY SWAPPING # 1 INJECTOR WITH SAY # 3 AND SEE IF THE MISSFIRE MOVES TO #3 IF SO REPLACE INJECTOR, IF NOT THERE COULD BE WIREING ISSUES

Oct 16, 2013 | 2006 Jeep Liberty

2 Answers

P301, p0300, p0201


Your vehicles computer should have the malfunction codes stored in it.

Some mechanics will check the codes for you. And some auto parts stores offer the service as well.

Oct 16, 2013 | Jeep Liberty Cars & Trucks

2 Answers

94 jeep grand cherokee loosing power and jerks at high speed


Check the coil packs or individual coils, fuel injection flush at sears where they actually do a flush. Check fuel filter too.

Good luck

Mar 26, 2017 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Engine runs rough at idle and bucks at highway speed. Check engine light was on after fuel injector cleaner was added to gas, the chek engine light ent off.Scan tool indicated no. 1 cylinder misfire prior...


I had a similar problem in a 1994 Taurus, and after spending nearly 300$ on ignition parts, it turns out the problem was a bad spark plug wire that cost me 8.88$ to replace.

Mar 01, 2010 | 2001 Ford Taurus

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