I've changed plugs, wires, and coil pack but my 3.8 2001 Grand Caravan still miisses and runs very rough. What might be my problem?

Asked by dmills20 Sep 18, 2015 at 04:06 PM about the 2001 Dodge Caravan SE FWD

Question type: Maintenance & Repair

For no apparent reason my 2001 Dodge Grand Caravan, just started running rough and missing,   The check engine light came on for just a few seconds, so I took it to my auto parts store.  They ran it for codes and the codes said number one cylinder was the problem, so I changed plugs.  It didn't help.  I changed wires.  It didn't help. Then I finally changed the coil pack and it seems to run rougher than ever.   What might be my problem?
Thanks      Pete Mills

5 Answers
17,455

crumbob answered 8 years ago

are you running the right octane fuel in it

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FutureSmile1981 answered 5 years ago

Check the wiring harness past where it hooks up. That made mine quit smoking and I had an injector stuck open. It still misses but no more smoke. I haven't changed my plugs and wires yet. I just havent had the money cause it put me off work when mine done it.

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140

DavidandJenny answered 5 years ago

What could cause my 2005 grand caravan to misfire I have changed the plugs,wires,coil pack, and even the fuel injector for cylinder number 3 and it still misfires

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Manuel answered 4 years ago

plug on coil is loose...with car runing and timing light on th spark plug wire not working ,move and shake the plug if the light star blinking the problem is at the plug not the coil

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