Chevrolet Equinox
3.4-liter V6 OHV 2-valve design from the 90s, recycled into the Chevy SUV lineup. Aisin AF33 5-speed auto, 185 hp with modest torque. Known for blown head gaskets around 90,000 mi, milky oil as the first warning. Not a modern engine, even at launch.
The SUV nobody actually wanted, even then
The 3.4L LNJ was GM shoehorning old V6 architecture into a new body and hoping no one would notice. Head gaskets blow, the Aisin auto gives up, the interior rattles from day one. Bought by people who wanted a cheap SUV, cursed by anyone who kept one.
Engine Weaknesses 1
Early Gen 1 3.4L LNJ V6 suffers head gasket failures, often around 90,000 mi. Coolant mixes with oil and can destroy the engine if ignored.
Symptoms: White exhaust smoke, dropping coolant level, overheating, creamy oil on dipstick
Vehicle Weaknesses 4
The Aisin AF33 5-speed in 2005–2006 suffers case wear at the output gear mount, loss of cooler pressure, and complete failures. Often requires rebuild.
In US rust belt states, Gen 1 Equinox develops significant rust on the front underbody and subframe mounts, sometimes with rust-through holes.
Blend door actuators on Gen 1 commonly fail. Heater blows cold or A/C only blows warm, with clicking sounds from the dash.
Front lower control arm bushings on Gen 1 wear early. Clunking and rattling over road imperfections.