Question about Jeep Grand Cherokee

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Lost power smoke exhaust

04 Jeep Grand Cherokee starts and runs fine for about 10 minutes then starts smoking around intake exhaust, losing power, and starts pinging and valves starts rattling when accelerating does not sound like a rod more of a rattle than a knock

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  • Gunner Rix
    Gunner Rix Mar 21, 2014

    it also starts running hot and losing power, after cooling down ,it starts again and running fine then starts the same prosess all over.

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  • Jeep Master
  • 808 Answers

If it is a 6 cylinder inline then catalyst is plugging up a easy test would be to remove a oxygen sensor and see if power returns to normal. V-8 models have 2 types of manifolds plastic and metal the metal ones have a plate bolted to the bottom which the gasket splits and sucks in engine oil causing all sorts of drive ability issues the plastic versions more trouble free but PCV ventilation system can cause smoking

Posted on Mar 21, 2014

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Posted on Jan 02, 2017

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SOURCE: 04 Endeavor rattling noise

I had the same problem! I crawled underneath the car and discovered that a heat shield on the exhaust header pipe was corroded and rattling against the exhaust pipe. (Before the muffler)
I removed the portion and clamps and solved the problem. Give it a try.

Posted on Jul 21, 2008

justuscc
  • 360 Answers

SOURCE: loss of power jeep cherokee 1998 2.5 tdi

could be a clogged catalityc converter. good luck

Posted on Sep 24, 2008

  • 350 Answers

SOURCE: Loud ticking/knocking/rattling sound when I start/accelerate

hi is it miss-firing as it sounds like a knocking noise can be anything but if you can feel it on the accelerater pedal then the noise sounds like its on the inlet valve side which would transfere the noise up the throttle body where the accelerater is located it could be something as simple as a tappet come loose to a burned valve you need to have a look do a compression test and take the rocker cover off see if theres anything come loose yates210456

Posted on Oct 13, 2008

  • 17 Answers

SOURCE: 2002 mustang makes rattling sound when accelerating...

Possible bad motor mount(s) --only thumps or rattles when power is going to the wheels.

Posted on Jun 12, 2009

  • 750 Answers

SOURCE: White smoke from Exhaust

hardly likely the exhaust job would cause that, but yes it sounds like you got a blown head gasket. badl lock stricks hmm! also preasure test cylinder head for leaks

Posted on Jul 22, 2009

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My 2002 smokes under a load or going up hill


catalytic converter or o2 sensor maybe

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Have 2004 Jeep Grand Cherokee straight 6 starts and runs fine for about 10 minutes then starts getting hot ,smoke starts coming up where the intake exhaust to engine , when you acellerate the valves r


check the coolant level. check thermostat for correct operation. Have a compression test done to check for head gasket or cracks . All indications are that the motor is overheating badly.

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When starting from cold, white smoke not firing on all cylinders for about 10 seconds then run fine


White smoke usually means coolant is in the combustion chamber. It takes your Jeep about 10 seconds to burn it through. Probably have a bad head gasket or intake gasket. Have a Mechanic check it out.

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I have 1994 grand cherokee Jeep, Jeep heats up and will not start the temp gage is not working; i have replaced the thermo sts sensor and gasket. The temp gage on panel still doesnt work... My Jeep also...


white /light blue smoke is a sign of a blown head gasket or intake gasket when you changed the oil filter was it creamy cause if it was then is a head gasket

Apr 08, 2011 | 1994 Jeep Grand Cherokee

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1996 jeep cherokee miss fires and white smoke from exhaust. replaced head gasket and still runs the same.. runs fine when cold.


White smoke is usually the sign of a blown headgasket. I would have the coolant system pressure tested before any serious damage is done.

Keep in mind this codes:
- Black is excessive fuel
- Blue is oil
- White is coolant

Then, if you see white smoke from the tailpipe, you have coolant escaping into the intake system.


Keep us updated.

Dec 21, 2010 | 1996 Jeep Grand Cherokee

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Loss of power jeep cherokee 1998 2.5 tdi


could be a clogged catalityc converter. good luck

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1997 jeep grand cherokee runs rich after long trips


Could have a bad map sensor. The Map sensor is located on the throttle body. I have seen countless Jepp that start blowing black smoke when they go bad. That would be a good starting place.

Sep 12, 2008 | 1996 Jeep Grand Cherokee

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