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I have a 2004 Chrysler Town and Country with a 3.8 Has the code Bank 1 to lean. catalytic converter is OK and I just installed new EGR valve new spark plugs and plug wires. man seems to run OK when cool and gets worse as it warms up. it hesitates stumbles and eventually dies also seems to have a misfire. Van has 224000 miles but runs smoothly at times hard start when warm. It runs awful after about 5 minutes of running great.

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With that kind of mileage, the motor is worm out mechanically

To to go into all that can be tested & data looked at, wouldn't
serve either of us well

Iam going to pass as I don't think your going to solve much
going forward & I would have installed no parts

I would have worked one issue at a time starting with what is
left of the valves,cylinder leak down,cylinder contribution,etc

I can only guess,but it sound like it was never diagnosed & many
times it was decided to continue to install parts,would not have been my choice as your mechanic

Posted on Nov 26, 2014

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If you have never changed you oxygen sensors they're way over due. If you have a scan tool that shows data you can watch the signal from each sensor. When the engine is fully warmed up theyour should be constantly fluctuating. If you can't afford to replace all four at once, start with bank one sensor 2 and see if that solves your problem.

Posted on Nov 26, 2014

  • marion s neeley Nov 26, 2014

    Thanks I will check that in a few. It just puzzles me that it can run so good cold so bad after about 5 miles of driving.


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Check your coil pack. Could be bad.

Posted on Nov 26, 2014

  • marion s neeley Nov 26, 2014

    Do you know how to test it?


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Sounds like the temp sensor is faulty, but that should also throw a code. I assume you scanned when the van was hot. I would go ahead and switch out the temp sensor since this is a heat issue with your van running good cold. Good luck.

Posted on Nov 26, 2014

  • marion s neeley Nov 26, 2014

    Thank you, picking up o2 sensor and temp sensor now.


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SOURCE: car starts great and idles smooth, when it begins

Have you checked your fuel injectors ?

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SOURCE: 1992 previa is hard to start only when cold. It

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SOURCE: starts rough and misses untill warm then runs great. code is misfire #3 running to rich/lean for pcm to work?

Test all injector. Must be with in specification. If not replace it.

Mai Lor

Posted on Feb 27, 2013

SOURCE: engine light on and misfiring and want to fix this and get it running smooth

The cylinder misfires cause lean or rich
fuel trim

A constant lean on fuel trim, is a rich condition
driven lean by pcm to correct

If two cylinder are affected & are together or maybe
not ,then smoke the intake for vacuum leaks

A leaking injector is obviously a rich senerio

Converter only works with the O2 Sesnors to report
back the rich or lean to pcm

You need to get rid of the misfires before any fuel control
returns to normal

Posted on Mar 08, 2013

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1 Answer

Where is the starter located on a 2011 Chrysler town and country

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This is the procedure

  1. Disconnect and isolate the negative battery cable.
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