KNOWN FAULTS · Jeep

Jeep Gladiator (JT) 3.6 V6 common problems.

2020–2026 · Petrol

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

Leaking oil filter housing and cooler on the 3.6 PentastarEngine

Engine / equipment: 3.6 V6 Pentastar: Jeep Grand Cherokee, Wrangler and Gladiator, Chrysler Grand Voyager and 300C, Lancia Thema and Fiat Freemont
Period mentioned: 2011 onwards
Symptoms: Oil spots under the car, oil on the block below the housing (in the engine’s “V”), frequent top-ups and, in serious cases, a low oil-pressure warning; sometimes coolant leaks too.
Possible cause described: The plastic housing that holds the oil filter and cooler sits in the middle of the engine, exposed to heat: with heat cycles it warps and cracks. Overtightening the filter cap also damages it. Chrysler revised the design in 2014, but leaks still occur.
Check for the garage: Look for oil in the centre of the engine and under the car; do not overtighten the filter cap. The usual repair is replacing the whole assembly (aluminium versions exist), removing the intake manifolds, with new gaskets.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Applies if: Weak points of this model from inspections, breakdown statistics and recalls; anything specific to one engine is stated in the sheet.

Diesel high-pressure pump, driveline and steering on the GladiatorKnown weak points

Engine / equipment: Jeep Gladiator JT (3.6 V6 and 3.0 V6 CRD)
Period mentioned: 2020 onwards
Symptoms: On the 3.0 diesel, the high-pressure fuel pump can fail and stall the engine (2021–2023); a rear driveshaft assembled without grease in the joint (2020); a gearbox park pawl that may not engage (2022); an instrument cluster that goes blank (2020–2024); power-steering pump wiring that can overheat and cause a fire even when parked (2021 onwards).
Possible cause described: Defects documented by US recalls (NHTSA 22V-767 and 23V-263 for the diesel pump, 19V-636, 22V-639, 24V-652 and 26V-363). European cars may have equivalent campaigns: check by VIN.
Check for the garage: Check campaigns by VIN; if the diesel stalls, check the high-pressure pump.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.