Question about 2002 Jeep Liberty

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Jeep is making a horrible knocking sound and there is alot of white smoke. What could it be?

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If the white smoke is antifreeze, fill it back up, take it to the dealer or engine service shop of your choice.

It is likely that you blew a head gasket and possibly other leaks.

Posted on Jul 16, 2010

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Posted on Jan 02, 2017

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2 Answers

Bmwx5, driving 60mph on carriageway,plumes of white smoke from exhaust then a slight rattling/ knocking sound,also 5 minutes prior to this felt a lacking in acceleration/turbo.


White smoke means your engine is burning it's antifreeze. You have a problem with either: an intake gasket or a head gasket

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My 01 gmc jimmy made a loud pop and white smoke started blowing out from under the hood. Now it makes a knocking sound but not like its low on oil or inside the motor. I dont have water in my oil and now...


The smoke under hood means that u need replace gasket between exhaust pipe and engine but smoke and knocking is not very good, it looks like your engine pistons has cracks and u r loosing oil by smoke time to time, i'd buy used engine from crashed car with less miles on it

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What would make a 2000 oldsmobile intrigue smoke from tail pipe and knock when accelerating?


you white or blue smoke white is not as bad as blue white is water and oil mixture blue oil rings knocking is connecting rods bearing or valves

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White smoke and sound from below


white smoke is a sign of burning coolant if the water pump went bad it would leak and make noise

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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

96' mercury sable smoking from pipe alot and knocking. Under the hood with alittle smoke won't pick up speed


didnt state color of smoke if blue smoke burning oil internal damage to engine and with knock could be rod--bent/stuck valve [blown engine ] white continuous smoke burning coolant usually a blown head gasket but add knock engine damaged

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I have a 1994 jeep grand cherokee ladero....Its making rough cackling sounds today...it jst started doing that when i started it up for work...it sounds horrible...but it still drives n crank up...its...


If you have no 'check engine' light, you will need a technician to diagnose it and I would recommend NOT driving it. If, for example, a rod cap has come loose, it will destroy the engine if it gets even looser.

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Leaking anti freeze and metal scraping sound coming from front passenger side of car. just replaced radiator 4 months ago. no white smoke out of tailpipe


It sounds like you need a water pump. When the bushing in the water pump shaft wears out it makes a horrible grinding marbles together kind of sound and coolant leaks past the shaft seal.

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Sounds like your injection pump timing is off, an injector is leaking or a bad seal on your IP.
VW dealers have a horrible reputation when it comes to TDI's. Check out the posts over at www.tdiclub.com Those guys are very knowledgeable - and the first thing they'll tell you is don't take it to a dealer.
You can probably find someone in your area that has a copy of Vag-Com (scantool software that vw uses) software that could look at your timing. It definitely sounds like your dealer was throwing parts at your car because they didn't know what your problem is. If I were you, I'd copy and paste your post from here over at www.tdiclub.com

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Engine knocks like diesel


A loud knocking sound could be a variety of things. On the top of the list is Bad connecting rod bearing and main bearings in the bottom end of the engine. Bad lifters may also be a problem. I had to burst your bubble but a loud noise in your engine, like you describe may be alot of pre-mature internal engine wear may be cause by lack of maintenance. You should have it check by a professional before you invest money into fixing it. Remember if the cost of the repairs exceeds that retail value of the vehicle. Its time for a new one. Good Luck

Dec 09, 2008 | 2002 Jeep Liberty

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