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Theresa Baugher Posted on Aug 01, 2016
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2007 jeep liberty has been checked at auto zone for check engine light on showing fuel regulator code needs replacing. Started driving rough and idle rough

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  • Jeep Master 20,706 Answers
  • Posted on Oct 01, 2016
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Joined: Apr 06, 2013
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Autozoned, the AUTO store, not a real shop.?
if yes, why would you ever ask any clerk this.???
if they knew this , they'd have a high paying job !
I can tell he lied to you, if it was a clerk.
but you never posted the DTC codes, why skip the most important facts? scan it , report all DTC stored, or its all a waste of time.

if not a clerk, the real and truthful mech would have said
we do more tests to find the bad part, it can be many.
Ill not guess and waste your time . and $$$$
we dont guess we tests and find true cause. unless rich and guessing is your only path, due to (in too much hurry).

the engine is a V6, no engine stated,
and the fuel rail on many V6 has this FPR,
but on newer cars it moved to inside the gas tank.
im not looking yours up, just on a clerks ,wild guess.
we check fuel presssure with tools, not guessing.
see, its a 3 mode test. too.

5 Related Answers

Anonymous

  • 1586 Answers
  • Posted on Aug 09, 2008

SOURCE: 2000 VW Jetta VR6 My

You may have a bad coil pack - try moving two of them around and see if the misfire follows the coil pack or stays at the same cylinder. If it follows the coil pack, get a new one. If it stays in the same cylinder, inspect your spark plug wires and make sure the plug is gapped correctly.

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Anonymous

  • 116 Answers
  • Posted on Dec 15, 2008

SOURCE: 98 E-250 Rough Idle; codes p0156,p1131,p1151,p0301,p0171,p0174+

po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes

Anonymous

  • 184 Answers
  • Posted on Dec 15, 2008

SOURCE: 1998 Ford E-250. Rough idle/hesitating

Hi, since the check engine light (CEL) is on you need to get the trouble codes read. Most auto parts stores will do this for free. If there isn't one nearby, any shop should be able to read it (for a charge) or you could buy your own code reader.

The code(s) you'll get will be in the format PXXXX like P0171 or similar. Once you have the codes you can look them up here to get a description - http://www.obd-codes.com/trouble_codes/

Or post the codes back here and we'll help you out. The next step is to get those codes though so you know exactly which areas of the engine to concentrate your diagnosis efforts on. Good luck!

Anonymous

  • 49 Answers
  • Posted on Feb 08, 2009

SOURCE: 2005 Ford Escape Rough Idle - engine code state lean fuel mixture

I recommend getting a repair manual from an auto store for your vehicle. They run $15 to $20. It will tell you exactly how to do everything you asked and also give you the values that should be expected. Hope this helps.

mecanica03

ROBERT GARCIA

  • 926 Answers
  • Posted on Jul 05, 2009

SOURCE: My 2007 Toyota Tundra 4.7l shows VSC OFF lights

check air filter for dirty , how many miles or kms have your car? , maybe need to replace spark plugs, try to reset the ecu for a momentany malfunction, remove the negative battery terminal few minutes and reconnect,start engine and drive, check if lights goes off , please write me

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Where is the fuel filter on a 2006 liberty 3.7L located?

The Liberty doesn't have an in-line fuel filter, it is part of the fuel pressure regulator on the top of the fuel tank and is not serviced unless the fuel press regulator is defective and being replaced.
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My 04 Jeep Liberty has a 135000 and has been running great. No repairs so far. Problem is: driving home yesterday I noticed a miss during accelaration. The engine light started blinking and then went...

First Joe check all your fuses, Second if you can get a code check some parts stores like O'reilly's may do it for free. Check your spark plugs may be time for a tune up. Check for broken vaccum hoses in the engine and vaccum lines.

http://www.2carpros.com/articles/engine-misfires-or-runs-rough

Copy and Paste this webpage has lots of helpful info on this problem good luck Joe!
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2005 jeep liberty has an engine light (yellow)staying on checked it out and checked fuel cap it is tight... now I have a knock or tick in the top of the engine... any help?

oil check oil. when light on dash comes on that means your jeep has a code for ya. take to auto zone and they will read the code for free with a code reader.
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2002 Jeep Liberty Renegade started car this morning very cold cold Car started rough now the engine is making a clicking noise

have you checked the oil it may be low on oil or you may have a bad cps(cam posistion sensor) so it is not exactly firing correctly you can go to auto zone and they will check the codes for free even if you dont see the check engine light on there will always be some type of codes stored. even codes that say no codes found. this will atleast give you a starting point.
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The check engine light came on and suddenly the idle is rough on 2002 jeep liberty-135k miles. Possible problems?

Hello there, Id say the EGR system has an issue. Have you been noticing decreased fuel milage prior to the rough running? Do you have a code scanner by chance? Autozone and Checker auto provide a free code scan , and that should place you in the right direction. Thank you , Quinn Texada
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2003 Jeep Liberty. Changed oil, running very rough and dies.

Buy some Marvel Mystery oil from Auto Zone and add it to you engine oil. Keep an eye on your engine oil level everyday with the Marvel in there and change the engine oil every 3000 miles. Hope the Marvel will clean out the lifters for you and the rest of the sludge in the engine. Do Not Use Engine Flush!!!! There know to eat the seals and kill engine sensors.
The EGR could also be stuck with carbon build up and may need to be cleaned or replaced. Try doing this, turn your radio off and disconnect the battery for a min, turn the ignition key to the run position and re connect the battery then start the liberty. That should reset the air idle control valve
Let it idle down and then go for a test drive after it warms up. Good luck and keep me posted, while your at Auto Zone have them scan your liberty for any DTC codes. Be glad to help.
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02 Jeep Liberty check engine light and trans. revving

SCANN-TOOL THE CODE ,IT WILL COME UP WITH A TRANS CONTROL UNIT.
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