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2018 Ram 3500 Engine Problems

6 owner-reported engine complaints from NHTSA data

6
Complaints
Apr 2025Dec 2020
Date Range

Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.

Owner Complaints (6)

mediumENGINE
Filed: Apr 2025

The turbo actuator quit working at 103,000 miles. Loss of power. Took to Dodge dealer in Bartlesville Oklahoma to fix.

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NHTSA #: 11655691
mediumENGINE
Filed: Jul 2021

The contact owns a 2018 Ram 3500. The contact stated that the vehicle was leaking engine oil. The vehicle was not taken to be diagnosed nor repaired.

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NHTSA #: 11425116
mediumENGINE
Filed: Dec 2020

My engine brake fails to function after prolonged towing such as climbing a mountain pass. When encountering grades on the other side the engine braking fails to function. The condition is only repeatable if towing therefore the dealer can not reproduce it.

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NHTSA #: 11384635
mediumENGINE
Filed: Jun 2019

Tl* the contact owns a 2018 ram 3500. The contact stated that the check engine indicator flashed and remained illuminated.

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NHTSA #: 11217841
lowENGINE
Filed: May 2024

I was pulling my 5th wheel trailer down the interstate, and my engine fan came on "hi". The suction from the fan caused the rubber fan shroud to become sucked into my fan and it cut it into large pieces. Those pieces were then violently thrown into the radiator and punctured it resulting in loss of all engine coolant.

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NHTSA #: 11586733
lowENGINE
Filed: Nov 2019

Nmhc catalyst sensor, nox aftertreatment sensor, and pm filter sensor can take over 1000 miles to reset after routine maintenance such as unplugging the battery. This can cause the vehicle to fail obdii based emissions testing. Depending on owners driving habits, this can result in large fines from multiple failed smog tests.

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NHTSA #: 11282086

Other 2018 Ram 3500 Issues