Question about 2002 Jeep Grand Cherokee

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My 2002 jeep stright or inline 6 cyc just started skipping when ideling or slow rpm could is be plugs or coil pack 130 thousand on it

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  • Jeep Master
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For coil packs, while running, unplug the harness to one, if it gets worse, move to the next, untill you find the cylinder. Then I swap the coil pack with another cylinder, and try again to verify it's the coil pack, and not something else.

Posted on Jul 12, 2010

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Cant remove coil pk on jeep grand cherokee larado


which engine?
we can never guess them
see here, this page, see the free FSM service
manuals?
https://www.jeepdied.com/

i guess hubby ask you to ask?
thats ok, but ask hubby what's there. first.
unlike above
RTM that is free,
WJ jeep it is
error the click instruments to get ignition
https://www.google.com/search?q=heater+core+diagram&ie=utf-8&oe=utf-8

its free so,,, page can be swapped and are on wj, but no WK
pages 8-10 its there.
4.0L coil rail, (page 8)
or
4.7 is V8 and has 8 coil packs, totally different, max.
see how I cant guess your engine/?????????

read the steps there
my guess is the inline 6 engine rail pack foils you
says its bolted directly to the cylinder head (not clips)

read step 3 carefully (the pry steps)


https://www.jeepdied.com/

Jan 19, 2016 | 2002 Jeep Grand Cherokee

1 Answer

03jeep lbertyrandom missfire cyl 2 4 6check engine light flashing


Check Engine Light/Misfire Due to Intake Valve Locks ...

repairpal.com > Problems > Jeep > Liberty
Jeep Liberty Check Engine Light/Misfire Due to Intake Valve Locks/Valves. ...Misfire cyc 4 and random cyc misfires, changed coil packs and plugs... sounds as if rod ... Light came on again (misfire on cylinder 4) - switched coil from 4 to 2. Light ...

Jeep Liberty Questions - Cylinder Misfire code - CarGurus

www.cargurus.com > Questions > Jeep > Liberty

CarGurusMay 27, 2009 - #4 misfire new plugs and coil pack on #4 light came back on after 300 miles if ... How come it stopped misfiring for 2-3 months, and now is back? ... I have a 2005 Jeep Liberty 6 cylinder, engine light came on scaned the codes ...

Liberty Cylinder Misfire / Computer issue? - JeepForum.com


Nov 28, 2015 | Cars & Trucks

1 Answer

My 2003 gmc envoy has p0303 error code. I have since changed the plugs but the code is still there. What else should I look at before changing the expensive coil on cylinder 3?


To find out if it is the coil pack, swap #3 pack with another cylinder and see if the fault changes. If not, you should check the compression on cylinder #3. If that is OK, I would suspect a bad injector.

Dec 28, 2012 | 2003 GMC Envoy

2 Answers

How to replace spark plugs on 2000 jeep cherokee classic 6 cyl.? Also does 2000 cherokee have inline fuel filter?


TO REPLACE SPARK PLUGS YOU REMOVE COIL PACK MOUNTING BOLTS THEN REMOVE THE COIL PACK WITH BOOT OVER THE SPARK PLUG.YOU HAVE 6 INDIVIDUAL COIL PACK TO EACH CYLINDER. YOU NEED A 3/8 RATCHET WRENCH - LONG 3/8 EXTENSION -SPARK PLUG SOCKET - SPARK PLUG GAUGE.AND TORQUE WRENCH.THE 2000 MODEL JEEPS FUEL FILTER INSIDE THE TANK.1993 - 1996 MODEL JEEPS FUEL FILTER LOCATED LEFT SIDE OF THE VECHICLE NEAR THE FUEL TANK.

Jul 20, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Replaced clogged 2002 grand am inline fuel filter. Engine turnes over and attempts to start but will not crank. The engine is receiving plenty of fuel. Could the computer- ized engine timing be off? If so,...


try drying out the plugs possibly flooded,, if its flooded try drying the plugs out and let the engine sit to dry the cylinders out.. the timing never goes out on computerized ignition, replace the plugs and ignition wires and test the coil resistances. 3 coils test between each coil where the ignition wires go KEY OFF, they should be 5 to 6 thousand ohms each if not replace the bad coil.. also did you pinch the fuel line check it for kinks ...good luck

Nov 24, 2009 | 2002 Pontiac Grand Am

1 Answer

When started idels high about 2000 rpm then drops when hot cold ?


the iac probably has carbon built up around it this controls the idle speed try cleaning it first,if not it could be a bad iac or a vaccum leak that the iac takes some time to compensate for to control idle.

Sep 17, 2009 | 2002 Jeep Wrangler

1 Answer

Over iddles in park


For the high rpm part, have you looked to see if there is a vacuum leakage or possibly a fault in the Idle Air Control motor.

With overheating since jeeps are single belt driven it could be possible the fan is starting up when driving slow or parked because the belt is moving right. Or look for leaks in the coolant maybe it's not getting enough coolant.

fluid in the glove box though, can you be more specific with that one.

May 21, 2009 | 2002 Jeep Grand Cherokee

3 Answers

1990 Jeep YJ 6 cyc. Won't Start---No Spark From Coil


It would be great if you could find the Ignition Control Module!!! From my experience on my Jeep...90 YJ 4.2 liter carb. it does not have one...Computer controlled only...

May 17, 2009 | 1990 Jeep Wrangler

1 Answer

Causes for no spark on 94 jeep cherokee please


Well it could be many things, But have you relpaced the dist. cap and rotor, within the last 15,000 miles or wires and plugs??? next step is the coil ? then it gets fun. like timing. but I think most jeeps with a Inline 6 have a bullet proof engine for the most part. As we all know there is plenty of semi's on the road. well the same set up is there. as an Inline Jeep. I would have to say 90% of semi's on the road are inline 6 cyl. engines. and may of them go to 1million miles.
so plugs,wires, cap, rotor and ignition coil. that is a good starting point.

Mar 24, 2009 | 1994 Jeep Cherokee Country

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