Question about 2002 Chrysler Town & Country

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Struggles on acceleration around 50mph

On light acceleration car putters and doesnt seem to have as much power on acceleration at any speed

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  • Trevor Francis
    Trevor Francis Apr 22, 2014

    p0306 cyl 6 missfire 127k very well maintained have to check how long its been since sparks plugs and all were replaced checked the air filter its basically new it started instantly and did not notice anything out of the ordinary before maybe slight mpg change

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How many miles does this vehicle have on it? Has it been well-maintained or not? Is the fuel filter old, dirty, or plugged up? When were the spark plugs or plug wires last replaced? Has the air filter been checked? I'm not sure I can help you with a solution without a lot more information about what's going on with this vehicle. Could be any number of reasons for this problem. Did it begin start suddenly, or has it gradually gotten worse and worse?
You may want to start by checking for air, fuel, and spark. A plugged air filter will prevent the engine from breathing. At 50 mph+, it's going to need lots of air. A plugged fuel filter will restrict the flow of fuel at all speeds, but it will be more noticeable the faster you go. Worn plugs and plug wires cause a weak spark, which robs the engine of power.
You don't mention anything about the check engine light. If there was a misfire the light should have come on. It's possible the EGR valve may be stuck partially open. You could have one or more vacuum leaks somewhere. The PCV or the exhaust system could be restricted.
Whatever you discover, don't throw parts at it and hope it gets better. You will have to isolate the actual cause of the problem first.

Posted on Apr 21, 2014

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Posted on Jan 02, 2017

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