Question about 2001 Chrysler Town & Country
An auto parts store does not give out advise
They are parts counter sales people-- not mechanics
Spark plugs seldom fail in your lifetime, so you need to
check for vacuum leaks at O2 Sensors,Exhaust leaks,Vacuum leaks
in inlet ducting ,pcv vacuum leaks,egr system issues
Check & listen to hear if injector all click & have same resistance
An OBD Codes for a cylinder doesn't have to be correct
You have mechanical integrity also
You don't have the tools to test as needed I don't suspect
or you could check cyl contribution,fuel trim,fuel press,cyl misfire
counts,O2 switching times,etc
Posted on Dec 07, 2012
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Posted on Jan 02, 2017
Suggest you check the wiring harness for continuity.
(Unplugged from ECM, of course!)
These wiring harnesses have a bad rep for intermittent breaks, in the wires of the harness. You have to wiggle the harness while running a continuity check, (Multimeter set to OHMS), otherwise the break/s may not show up.
Yes, I know where that harness is located. No, it's not Even going to be fun to remove, and check this harness!
I had to do this with a 1992 Pontiac Bonneville, with a 3.8L engine, not too long ago. Everything had to be removed, on the front of the engine, Including the water pump, in order to extract this harness.
Made me SO happy! (I still get the 'Giggles' when I think about it!!)
Posted on May 19, 2009
Take it to another auto parts store to test to verify.
If you put a voltmeter on the battery when the T+C was running, it should read 14-15V.
It could have a bad diode. If this is the case the alt. will be pumping out AC instead of DC. This is BAD. Batteries do not like this and the battery will fail because of it.
Be careful in those 'auto parts stores'. I have found that they employ alot of 'kids' who know little about how a car works. Try NAPA. They are much more knowledgeable and professional. But they cost alittle more.
Posted on Jun 12, 2009
go to autozone for a free ecm scan write down the codes and repost then we can help too generic , can think of 15-20 things could cause this also include your vin for more accurate diagnosis AUTODOC
Posted on Aug 24, 2009
you may have accidently disconnected something. ie senser, vaccum line etc. I would just look to see if something is connected in the area I was working or something I removed to get to the plugs. good luck
Posted on Jul 24, 2010
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