Question about 2002 Jeep Grand Cherokee

1 Answer

My 2002 Jeep GC Limited bounces and rolls. You can hear what sounds like knocking when it bounces over bumps. Almost like there is metal on metal. I just replaced all four shocks with very little effect. Also had a broken rear stabilizer bar replaced 5 months ago. I live in Germany and the mechanic access I have is limited. I have to tell them what I think is wrong for them to even look for it. The jeep used to have a very nice ride. Now its very uncomfortable. You feel every bounce.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Jeep Master
  • 6,026 Answers

Mechanic seems rather odd considering it is the function of a mechanic to discover what is wrong. If owners knew what was wrong with their vehicles there wouldn't be much point in mechanics serving a four year apprenticeship learning the core skills and taking loads of exams. I was in training for seven years and I think I managed to scratch the surface but very little more than that.

If it sounds like metal-to-metal contact, it probably is though the noise doesn't necessarily account for the poor ride. You have described symptoms that seem like a car with worn shock absorbers...
It is worth noting not all shock absorbers are the same. I once fitted Gabriel brand shocks to a car and the resulting ride was so teeth-rattlingly hard it made the former ride seem luxurious by comparison.

It is also worth noting that an unwise type mix can cause a most uncomfortable ride that one correspondent described as a sideways bounce.
Such things would not account for the knocking noises.

Modern vehicles tend not to be fitted with suspension bump stops but instead are fitted with similar hard foam components that act as auxilliary springs, often fitted on the piston rods of struts and semi-struts. These components are soon damaged if the car is driven with dud shocks, is heavily loaded or driven hard over rough ground.

Speculation is pointless. In reality the pathway to a diagnosis is for an experienced person to go for a drive and then take a look underneath.

Posted on May 28, 2017


6 Suggested Answers


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Richard Scordino

  • 6982 Answers

SOURCE: Rear Suspension noise on 2001 Jeep Grand Cherokee V8

Check sway bar. On some models as suspension sags, sway bar outer ends will contact the body, leaving a mark or dent just above the end, causing a bang over bumps. Only way to correct this is to change springs or add a spring lift.

Posted on Mar 12, 2009

Richard Scordino

  • 6982 Answers

SOURCE: 2001 Jeep grand cherokee motor knock 4.7 motor

First, if the noise is from the upper part of the engine and is more of a tapping than a knock, likely you have a problem in the valvetrain, most often a bad lifter or worn rocker arm. If the noise is low, deep inside, the noise is from a bearing. This is generally accompanied by lower than normal oil pressure. Regardless of the underlying cause, correcting the cause will not stop the knock. To do that correctly, the engine needs to be removed and all crankshaft bearings and the crankshaft itself need to be replaced (crank can sometimes be "undercut" and thicker bearing shells can be used depending upon the amount of wear.) If caught very early, sometimes only one bearing can be replaced in-car, but in 99% of all cases I have ever seen, most will fail again, sometimes more severely if done this way.

Posted on Dec 10, 2009

Testimonial: "Thanks"

Richard Scordino

  • 6982 Answers

SOURCE: 4 wheel drive is binding/popping - 95 YJ Wrangler

You likely did damage the t case internally. You may be able to find a replacement in a scrapyard far cheaper than rebuild parts will cost, and, it then becomes just an r&r job. You may want to keep the old unit (if there isn't a high core charge) and at your leisure you can take it apart and rebuild it, then, re-sell the scrapyard one if you don't need it. I'd also definitely make sure you haven't broken a tooth on the ring and pinion in the front diff before going further with anything though.
Remember...when changing differentials you MUST match the exact gear ratio front and rear or you will destroy the transfer case.

Posted on Jan 21, 2010


Kori Policy

  • 3489 Answers


relace your shocks. the design of any dampner(strut or shock design) is to return the wheel to the road for handling and safety. when the shock is worn out is with continue to bounce like a basketball. it has no more strength to return to wheel to the road. a common misconception is that they are there to absorb, not true. the springs or torsion bars are there to absorb and create ride height. the shock does nothing more then return the wheel to the road. simple and inexpensive.

Posted on Feb 02, 2010


Ronny Bennett Sr.

  • 6927 Answers

SOURCE: when i hit a bump -have to be on interstate- going

replace the front struts

Posted on May 11, 2010

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Knock sensor on a 2002 jeep liberty how to replace

posted many times here, and not once the engine stated
the 3.7Liter or 2.4L???? we can never guess that, ever !
and why, why ask this.? DTC errors, a rumor from the internet
is the engine pinging?
is the engine making load noises of any kind?
did you know , you dont need to ask at all, you can find
any part of any jeep,at (drum roll) jeep dealer online parts, (100s)
lets do this 1 more time. (searches work here)
so lets try by my guessing 3.7 liter
limited edition
click Knock in there search box. omg, this is easy.
and omg 2, a drawing, no kidding a drawing.

and part 11 is IT.
see it?

you can do that for 3000 parts on the car.
no need ever to ask where a jeep part is.

(how fish is me)

post symptoms not easter egg hunts, is best.

Feb 13, 2015 | Jeep Cars & Trucks

1 Answer

When I hit a bump I bounce and bounce and bounce.

If the bouncing is in the front it is probably a strut.
If the bouncing is in the rear it is probably a shock
look for the shock to be oily indicating the shock is bad. But
usually if the car is bouncing two or three time after hitting a bump
the shock has either broken or come completely loose.

Jan 15, 2014 | 2003 Buick LeSabre

2 Answers

How to change rear shocks on 2003 Kia sorento?

NO PUN INTENDED. If u are asking about "if its a shock absorber" I professionally advise u not to tackle the repair. It may not even be a shock we're referring to.

Jun 10, 2017 | Cars & Trucks

2 Answers

Bmping noise in frontend of 1998 jeep gc

Try having your Shock Absorbers Checked. That's the first place to look.

Dec 14, 2011 | 1998 Jeep Cherokee

2 Answers

Front driver side suspension knock over bumps

See if you can bounce car and replicate the noise. If you can, you should be able to find it, and put your hand on it. Stabilizer bushing are a place to look, both at the lower a arm and on the frame. If you narrow it down to the strut, it will need to be replaced. The front trans mount also goes bad, try putting it in drive with your foot on the brake and give it some gas and see if the engine moves an excessive amount.

Nov 23, 2009 | 1992 Buick Regal

1 Answer

1998 navigator bounces if the front and knocks when you hit bumps

SOunds like a broken shock, or bad strut. Air bags or not, struts and shocks are what control bounce.

Mar 20, 2009 | 1998 Lincoln Navigator

1 Answer

Knocking sound from my 4.7 jeep gc

Glad to hear it got more quiet, the Seafoam product has a very good reputation. Under most circumstances a little lifter noise is something that comes with age and is not necessarily something that needs to be fixed right away unless the noise gets loud enough or is affecting performance.  What is the year of your GC and how many miles does it have?  Make sure you get oil changes at the recommended intervals and check your oil level often to avoid a harsher knock. I would recommend having an oil flush done with the next oil change, you may want to move to a higher grade of oil or a synthetic to help avoid further noise. As far as you question of price to fix, for now, stick to treating the problem with the above recommendations because there may not actually be damage yet, alot of engine noise is just its way of telling you it needs some TLC (oil changes and such)

Dec 14, 2008 | 2002 Jeep Grand Cherokee

Not finding what you are looking for?
2002 Jeep Grand Cherokee Logo

Related Topics:

46 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

85222 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

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

Answer questions

Manuals & User Guides