Car runs fine when cool or warming up.
When car warms up (oil and water both up to temps) the car develops a stumble / miss on a cylinder (or so it feels like its only one cylinder)
It idles rough and hesitates when accelerating while missing as the revs climb...BUT ONLY WHEN WARM /HOT.
What is causing this? Maybe when the coils get hot they are weak? Anyone run into this?
When car warms up (oil and water both up to temps) the car develops a stumble / miss on a cylinder (or so it feels like its only one cylinder)
It idles rough and hesitates when accelerating while missing as the revs climb...BUT ONLY WHEN WARM /HOT.
What is causing this? Maybe when the coils get hot they are weak? Anyone run into this?