Engine Spark Knock May Occur Under Acceleration and High Temperature on Chrysler Town & Country

Under heavy acceleration in temperatures above 80° F, an engine spark knock can be heard. The powertrain control module should be replaced.

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Average mileage: 212,000 (212,000–212,000)
Engine affected: 3.3L V6
3 model years affected: 2004, 2005, 2006
3 people reported this problem
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2005 Chrysler Town & Country 212,000 mi,
I get spark knock when my T&C is under load e.g A/C on, going up hills. I did a full tune on the van and still didn't fix the problem. I am planning on a 1400 plus mile trip this summer and looking for some help on what should I do?