Rant: A 2018 Ford Escape with a phantom misfire that took three days to find

It was a P0300 random misfire code with no obvious cause, and I swapped coils and plugs twice before finding a tiny crack in the intake manifold gasket. Has anyone else had a simple code turn into a multi-day hunt?

3 comments

Log in to join the discussion

Log In

3 Comments

campbell.evan6mo ago

Tell me about it, I chased a rough idle for days once. Ended up being a vacuum leak from a brittle hose you couldn't even see without pulling the intake. Sometimes the fix is stupid simple but hidden in the worst spot.

5

the_oliver7mo ago

Ugh, that reminds me of chasing a weird electrical gremlin for a week.

1

martinez.diana7mo ago

Oh man, what if the problem wasn't even in the wiring you were checking? I mean, sometimes those things are just a bad ground somewhere totally random, idk.

4