Question about 2001 Dodge Grand Caravan

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2001 Grand Caravan Loud Knocking Noise

A 2001 Grand Caravan w/3.8L V6, just over 100K miles. When cold, a loud knocking sound happens when engine is rev'd. Once the engine warms up, the knocking can be heard at idle. The engine warning light is on.

I believe it might be the knock sensor that has gone bad. If so, where is it located on this engine.

If you have any other suggestions, I'm all ears.

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  • Anonymous Feb 17, 2009

    where is knock sensor on 2000 3.8l dodge caravan? engine block or ecm?

  • Anonymous May 11, 2010

    could be piston slap. not much you can do short of rebuilding motor if this is the case

  • Mike Butler
    Mike Butler May 11, 2010

    Knocking or rattling/pinging sound? If it is a knock, that's not a good sign, and first thing I'm going to ask is if oil level is up & when was it last changed along with filter. When did noise occur?

  • Anonymous Mar 18, 2014

    The engine has a slight knock its not very loud but u can tell is still there



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Big end or main bearing.

Posted on Jan 25, 2009


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