Chrysler Pentastar 3.6L Engines Allegedly Experience Contamination

by Aryn Plax

Feb 15, 2022

Problems with Fiat Chrysler’s Pentastar 3.6L V6 engines have prompted a class action lawsuit, which alleges that the engines experience several defects that ultimately lead to engine failure.

Hesitation, misfires, surges, ticking, loss of power and engine failure allegedly occur in the following vehicles:

  • 2014–2016 Chrysler Town & Country
  • 2014–2020 Dodge Challenger
  • 2014–2020 Dodge Charger
  • 2014–2020 Dodge Durango
  • 2014–2020 Dodge Grand Caravan
  • 2014–2015 Jeep Grand Cherokee
  • 2014–2020 Chrysler 300
  • 2014–2020 Jeep Wrangler
  • 2014–2020 Chrysler 200
  • 2014–2020 Ram 1500
  • 2016–2020 Chrysler Pacifica
A 3.6L Pentastar engine, exposed under an open hood.

The lawsuit alleges that the engine’s components, such as the rocker arms, lifters and the engine control module software, are defective and fail prematurely. The software controls the timing and function of the lifters. When these parts fail prematurely, problems with opening and closing the valves occur.

The failed components, such as the rocker arms, also cause metal particles and debris to contaminate the engine oil, which then circulates throughout the engine. This contaminated oil damages the engine, causing stalling and engine failure.

The class action lawsuit alleges that the automaker concealed the Pentastar engine problems, which it knew about since 2013, so that customers would repeatedly pay for repairs and replacements. According to the lawsuit, replacing the components costs anywhere from $1,500 to $4,500, and an engine can cost more than $6,000. Customers who brought their vehicles in for repairs allegedly received equally defective replacement parts.


Knight Law Group is an automotive lemon law firm that exclusively practices in California. If you are a California resident who purchased or leased a defective vehicle from a licensed dealership in California, we may be able to help you get rid of your potential lemon and recover significant cash compensation. Model year restrictions apply: 2015–Present vehicle models only.

However, we cannot help those who reside outside of California or purchased their vehicle outside of California unless they are active duty members of the Armed Forces, nor will we be able to refer those to a lemon law firm in their states. To learn more about the California Lemon Law and your legal rights, visit our California Lemon Law Guide for more information.


Source: CarComplaints.com