Question about 2002 Jeep Liberty

2 Answers

So I have a 2002 jeep liberty it bogs at 2500 rpms when gas tank is full and when its empty it drives good what is the issue? I can't figure this out.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 22 Answers

Sounds like a tank venting promble.

Posted on Nov 24, 2014

  • cody tisue Nov 25, 2014

    Ok how do I fix that issue

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 239 Answers

Did you try loosening the gas cap? If it behaves differently, never mind the engine light for the moment, but does the performance improve any? If so, replace the gas cap or make certain it is tight after fueling. Let us know if this helps or fixes the issue.

Posted on Nov 24, 2014

  • cody tisue Nov 28, 2014

    Well im kinda broke and can't fill it up all the way but will try it as soon as possible

×

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Tech Jenkins
  • 359 Answers

SOURCE: 2002 Jeep Liberty shuts off

Could be a faulty fuel pump. As the pump warms up, when you have a faulty fuel pump they will tend to seize up. When it fails check the fuel pressure with a fuel pressure gauge and see what it reads.

Posted on Aug 14, 2008

  • 156 Answers

SOURCE: 97 Saturn SL1 leaking antifreeze, high RPMs, uses excessive gas

wow it sounds like you have a few problems going on. One, your idle speed is set too high and needs to be lowered. Two, i would replace your temperature sensor so that you can monitor your overheating. As well as try and see where the leaking is coming from (i.e. the radiator cap, on the radiator itself, or where the hoses run into the engine-could be engine temperature sensor). Three, if you have to prime your engine at first to get it to run then more than likely fuel pump is going bad.

Posted on Feb 23, 2009

clarktravis8
  • 74 Answers

SOURCE: go to stop rpms drop jeep liberty shuts off

Here are some things that I have run into. First any sensor cam/crank/tps etc..) that has a reference voltage from the pcm can cause this issue these sensors,(ESPECIALLY THE CRANK SENSORS or CAM Sensor) CAN SHORT OUT INTERNALLY. THIS WILL CAUSE A NO START CONDITION AND A "NO COMMUNICATION" ISSUE WITH THE PCM causing stalling. here are some things that I have run into. This condition has caused numerous unneeded pcm replacements. It gets difficult to diagnose when its an intermittent problem.sometimes a tech will install the pcm and let the jeep leave. Then when temp is right, the sensor shorts and it all happens again. Often by the time the jeep shows up on the hook the engine has cooled and the short is gone. In this case the tech has nothing to go on. YOU MOST LIKELY WONT HAVE A CODE HERE. THIS IS HOW I DIAGNOSE THE ISSUE. WHEN THE CONDITION IS PRESENT (NO COMMUNICATION") with THE KEY ON, START DISCONNECTING EACH SENSOR THAT HAS A REFERENCE VOLTAGE. START WITH THE CRANK SENSOR. IF YOU SEE THE SCANNER GET COMMUNICATION, THEN YOU FOUND THE SHORTED SENSOR.this CAN BE A PAIN IN THE @** IF THE CONDITION IS INTERMITTENT.
PLEASE NOTE: IT IS EXTREMELY RARE THAT THE PCM ITSELF HAS CAUSED THIS CONDITION. 99% OF THE TIME ITS A SENSOR SHORTING OUT, WIPING OUT ALL COMMUNICATION. ALSO NOTE:I HAVE NEVER SEEN THIS CONDITION ACTUALLY DAMAGE THE PCM. ONCE THE SHORTED SENSOR IS REPLACED, THE PCM IS FINE. THERE IS A RESISTOR IN THE PCM THAT PROTECTS IT FROM THIS. Good Luck and I Hope this will help resolve your issue. Please Rate Me. For any further assistance you can always ask me
1ak+f4pj7cbm32cuniyi2gaaaaaelftksuqmcc

Posted on Apr 25, 2009

  • 6982 Answers

SOURCE: 2002 Jeep Liberty fuel gauge always shows empty

I don't ever remember seeing a fuel gauge that was connected to the pcm in any car. There pretty much isn't any reason it would be. I have seen numerous problems with dash plug connectors that can cause various gauge problems.(most times cured by cleaning and sometimes slightly bending prongs to get better connection) The sending unit in the tank is part of the pump assembly. i would check for good dash connection and power and continuity at the sender. but question why the pcm needs to be changed, and would only change my opinion if someone could show me a schematic that proves that the gauge connects to the pcm..

Posted on Jul 09, 2009

  • 497 Answers

SOURCE: 2002 Chevy Suburban: Fuel gauge reads empty, tank is half full

Youre gauge is controlled by a plunger in the fuel tank which is attached to the sensor and the fuel gauge. it sounds like when the plunger goes down half way its either getting stuck down lower then it should. Needs replacing. Any mechanic can do this install for you.

Posted on Aug 27, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How can i empty gas out of my jeep so i can change the fuel pump?


gas or Diesel , ok gas.
why do that, the tank has and access cover.
see FSM ,, it shows these facts or alldata.com


siphon hose it out.
some filler necks at bottom near tank have check valve
making this very impossible
did you read the FSM on pump out ?

step 1, floor pan at rear
2: remove cover, and....

Aug 23, 2014 | 2002 Jeep Liberty

1 Answer

My 2002 jeep liberty 4x4 bogs down and jerks when i press gas pedal


I would get it scanned to see if there is any fault code set. Also measure the fuel pressure, which should be aroun 45 PSI.

Nov 19, 2013 | 2002 Jeep Liberty

1 Answer

I have a 2002 jeep liberty that the gas gauge will go from full to empty and back to either full or all the way to empty, doesn't matter how much gas is in it what is wrong?


if there are no other wrong gauges then its probly the sending unit in the tank-it maybe corroded or have bad ground--youll need to get a repair book to see how hard it is to fix

Nov 28, 2010 | 2002 Jeep Liberty

2 Answers

03 jeep liberty gas gauge is sometime at empty and some time at full


This is a common problem with all cars, If you do a search on sulfur and fuel gauge problems you would find more info than I can tell you.

But basically you will need to replace the fuel sender in the tank to fix this problem.

The sender uses silver contacts and the sulfur is corrosive to it.

The sulfer in fuel changes thru the year and sometimes its extreme.

Jan 17, 2010 | 2002 Jeep Liberty

1 Answer

2005 DIAGNOSTIC ERROR CODE P0069, CRD ENGINE WONT


Are you traveling high ground like Rocky Mountain?

I will remove the ground cable for 4 minutes to reset all data in ECU.///clock and radio stations too : (

Let the ECU to relearn the local environment parameter.



Here's so info on how to prevent vapor lock

Ride with full tank of gas but NO TOP OFF.

Crack open gas cap carefully during rest stops to release / equalize gas tank pressure'

http://www.estes-park-information.com/vapor-lock.html


Good Luck

Jul 15, 2009 | 2005 Jeep Liberty

1 Answer

Gas Gauge won't move


Replace the fuel sensor / sending unit, it is inside the gas tank, it is a lot of work to drop the gas tank, I have done it on other cars... If you want to do it make sure the tank is almost empty it is very heavy with all that gas inside make sure there is no open flames or cigarretes close
Good Luck

Mar 20, 2009 | 2002 Jeep Liberty

Not finding what you are looking for?
2002 Jeep Liberty Logo

79 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75117 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7772 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...