1996 Mercury Cougar Q&A

1996 Mercury Cougar Question: Engine Light keeps flashing & pistons sound like they are coming thought hood

At idle, the motor has a thump when the pistons fire. Sounds like a piston misfire. The engine light may be something else. -
Answer 1
If there is a low sounding knock which increases when you idle up a bit you most likely have bad rod bearings. -
Answer 2
Try to retrieve the diagnostics trouble codes from the computer to have an idea why the engine light is flashing. -