I changed the sparkplug on my 2001 dodge caravan with a 3.3 liter engine and now it seem like its running on 5 cylinders it bucks . I checked the coil and it has sparks to every spark plug . What else can i checked ? I also checked the firering order and the wires too. Maybe I hit and disconnected something during the change of the plugs.

SOURCE: how to change spark plugs in 2001 intrepid

look for 1 inch black boxes near the top of your engine pull up on them plugs should be there

SOURCE: my 2001 dodge grand caravan sport gave me two

YOU MAY HAVE A PLUGGED/INOPERATIVE INJECTOR ON #3 CYLINDER..OR MAY HAVE A BROKEN VALVE SPRING..HAVE SEEN A BROKEN VALVE SPRING RECENTLY ON 1 OF THESE VEHICLES

SOURCE: 2001 Dodge Caravan Cylinder Misfire

I have a 2001 Dodge Grand caravan Sport i have a misfire in cylinder 2 i changed the spark plugs,wires,coil,map sensor,COMPUTER,had it checked for vacum leaks (nothing),fuel filter.Basically I have almost redone the whole van and i still have the same problem. Can anyone suggest what else i could try! please

Vincent G

• 2363 Answers
• Posted on Dec 19, 2009

SOURCE: MIL indicates cylinder misfire on 1, 3, and 5

Check for

vacuum leaks on intake manifold,

the air tube between the air filter.

intake manifold vacuum hose.

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clean throttle plate with Berryman carburator cleaner

SEE sample picture HERE
===

Also remove carbon built up behind the EGR valve and the EGR passage tube.

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Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.

More un-metered air (leaks) will lean out the fuel mixture.

Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.

At idle,just spray and listen for the RPM surge.

The in-rush of carb clearer will increase the RPM on the motor.

Record the problem spot(s) and address it later.

===

EGR carbon built up require 2+ hours to clean from start to finish.

You will need a new EGR base gasket before your start.

Locate and remove the EGR valve after the vehicle is cool down.

Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.

Remove the EGR valve.

Inspect the location of the carbon built-up inside the valve and the EGR passage tube.

SOAK these areas with WD-40 spary.

You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.

RE-SOAK the carbon and let it sit for over-night will also help.

One the last round,pass a shop vacuum of the EGR valve and the passage pipe.

Install the new EGR gasket and connectors.

Allow the vehicle to warm up outdoor to burn up any remaining WD-40.


Take it for a test drive.


Please rate my answer if it's useful to you.


Cheers,

Mustgo

Michael Van Der Burgt

• 66 Answers
• Posted on May 07, 2010

SOURCE: 99 dodge caravan #4 cylinder misfires, i replaced

This is a known dodge issue replce the injector!!!!! done deal