Question about 2002 Jeep Liberty

2 Answers

Engine knock 02 Jeep Liberty 3.7, its not the rockers.

Not the rockers no smoke and no engine light. does have oil

Posted by on

  • bozo pv Jun 20, 2014

    The Jeep in 2002 had a lifter problem, put a can of Sea Freeze in the oil see what happens the knock should stop.

×

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,162 Answers

Could be a bearing. If so could be expensive. If its a straight 6 could be a host of things, head crack that has over heated engine makes it sound like a diesel, bad lifter, you need a mechanic to look before real damage is done

Posted on Mar 29, 2014

Ad
  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 10 Answers

Does it make the knocking sound all the time or just when turning like into a driveway and maybe when hitting bumps at a slow speed? I had the latter, with a couple of my vehicles, mainly when turning into driveways or driving slowly in parking lots. It was the wheel bearings.

Posted on Mar 30, 2014

Ad

1 Suggested Answer

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.
New users get to try the service completely Free afterwhich it costs $6 per call 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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2002 Liberty Knocking


I first would check th eoil to make sure they put the correct ammount of oil in. This sounds like no oil, over oil, or blown gasket

Jun 05, 2012 | 2002 Jeep Liberty

1 Answer

I have a knocking noise coming from the front of my 3.7 liter engine on my 2004 Jeep Liberty have a check engine light with code 304 the knock sounds like tap not fast during idling the sounds gets a...


I HAVE SAME JEEP SAME PROBLEM...I have found out after research that all these jeeps like yours and mine have a common problem with engine clogging and the valves sticking and the rocker arms coming off.....This is true I pulled my valve cover off and the rocker arm had come off because the valve was stuck ....Pressure between the rocker and the cam and the valve is the only thing that will keep the rockers from falling off......And when the valve starts to stick the rocker falls off.....This is sad but true.....Also it is badly clogged with black chuncks of burnt oil....I dont know what causes this other than the wrong weight oil....but I only used the wrong oil maybe 2 times...
There should be a recall on these because the rocker arms shouldnt come off.....I think the rockers are wrong from the factory....I am a level 2 chrysler tech.and also ASE certified.......It makes me angry that they built these so weak !! ....All you can do is remove the heads and have a complete valve job done and clean the oil pick-up tube in the oil pan as well....then a complete engine flush..
.....ONLY use 5w20 weight oil also........If you dont have the cash dont tear it down cause I almost guarantee you have the same problem as I.............Hope this helps.................Metalpoet

Mar 07, 2011 | Jeep Liberty Cars & Trucks

1 Answer

My 2003 jeep Liberty is consuming about 2qts. of engine oil each 3 weeks. There is no oil leak and I haven't notice smoke. Thanks!


i think the first thing to check would be the coolant for a bad headgasket see if its milky or just have oil in it in general

Dec 15, 2010 | 2002 Jeep Liberty

1 Answer

Install a 05 Jeep Liberty 3.7 in a 02 Liberty


BEFORE you put the engine in you must convert it with your old engine's crankshaft position ring and it's pick-up sensor. This ring can ONLY be changed with the engine upside down and out of the car. All rods must be disconnected, all mains are part of a cast saddle that must be removed, the front engine covers and all the timing chains must be removed, and finally the crankshaft must be lifted out and the ring must be hammer-unscrewed (impact screw driver, but I forget now if the taper-headed screws are allen, hex, star or phillips). DO NOT WASTE YOUR TIME REMOVING THE HEADS. The ring is ENTIRELY different than the one the computer system on the 02 Liberty can recognize (this is what triggers your spark timing). Next is the magnetic pick up 'wheel' located on the front of the passenger's side of the over-head camshaft. This magnetic cup wheel triggers the '02 fuel injection system (don't un-magnetize it). Lastly, the '02 plastic intake manifold (w/ O rings for seals) for the '02 has an additional port, this is an easy swap-out. Mostly there are no gaskets- the finish is so fine they just use a factory sealer (comes in a tube). Buy it, it's cheap enough and it matches the factory's specs. Taking the engine back out/in is NOT fun, but with the engine on a stand, and with no time constraints it's managable (but still not fun). I made that exact engine swap myself and went through a lot of anguish learning all of this. By-the-by, these engines will NOT tolerate dirty oil. DO NOT EVER try and stretch out your oil changes, because they run really hot (due to the windage tray that prevents oil mist from coating the engine's internals) an ash will form and goop up the insides. The fine oil pick-up screen (drilled plate) will always clog up. If it's been a long time since the last change and your engine is still running fine, when you get around to putting in new high detergent oil it sorta un-sludges the goop and REALLY coats the pick-up. DEATH BY SUFFICATION. If you're ever at this point (no damage yet) I would suggest doing the oil change (before there's any knocking or signs the engine is failing) and I would do 2 more oil & filter changes @500 miles each; hopfully you'll dislodge the ash/sludge and get it out of the engine. Once damage has started it progresses very quickly- this engine is not very tolerant. Your oil will be gold color, and yet your enging will sieze because it can't 'get to it'. BEST OF LUCK- this is very do-able, but you might first investigate if you can swap out the engine management computor and wire harness and maybe avoid all of this above mentioned wrenching. No back ground info here, plus I didn't have access to the vehicle the 05 engine was snatched out of- sorry, and good luck again. One last bit of advice- I bought a zero miles engine from a National Highway Admin. crash/test vehicle. When I broke the engine down ALL the timing marks on all three chains were not aligned and had to ALL be set- I guess they might do that to prevent the parts from re-entering the 'system'? Or, some dumb s__t at the factory was new and/or pi__ed-off and this engine was just plopped in the donated/untitled crash vehicle rather than ripping it back apart and re-assembling it. The damn Jeep fired on the second crank and is running fine now (2 years later). Ciao4Now, Brian Fahey

Feb 17, 2010 | 2002 Jeep Liberty

1 Answer

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.

Feb 12, 2010 | 2005 Jeep Liberty

1 Answer

2004 Jeep Liberty it pasing oil an prestone that just apend onse


is it leaking, or burning in the combustion chamber? Comming out the tail pipe? Blue smoke is oil, white smoke is water, black smoke is carbon. Smell your exaust; smell like "prestone"? Does the engine over heat? My guess would be a bad head gasket. Is the oil a light brown color?

Jan 17, 2010 | 2004 Jeep Liberty

2 Answers

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.

May 31, 2009 | 2005 Jeep Liberty

1 Answer

Engine knocks at idle or low rpm, no load, no smoking or oil loss


Idle at 40 is fine. Do what I said and give it a chance to work...chances that an adjusting nut has loosened up is ) if it's a 4.0 (you didn't say) these have non adjustable valves. Any engine with adjustable valves uses "interference thread" nuts that do not back off.

Mar 20, 2009 | 1995 Jeep Wrangler

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

155 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

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

Answer questions

Manuals & User Guides

Loading...