Known problems
What goes wrong on the GM LV3 (4.3L V6)
critical
Lifter Failure (Active Fuel Management)
The Active Fuel Management lifters that let GM's V8 and V6 trucks shut off cylinders can collapse or stick.
Typical repair cost
$3,500 – $8,000
caution
Exhaust Manifold Bolt Breakage
Manifold bolts snap from heat cycling and leave an exhaust leak that ticks loudest on a cold start and quiets as the engine warms.
Typical repair cost
$400 – $1,200
Which of these apply to your GM LV3 (4.3L V6)?
Your guide shows which apply to the exact car, and what to ask the seller.
Where it was used