Mk4sochist
Member
I've got a 2002 Jetta TDI (ALH) , 228K miles, stock. It recently developed an issue during cold starts. It's stumbles somewhat rhythmically at idle and produces quite a bit of white smoke for about a minute. It's not throwing any codes, and it's only on cold start. Once warm, it idles at 903 RPM and is rock solid. Now that it's getting colder out, it's definitely getting worse.
See video below. Wondering if anyone has any thoughts before I take it into a shop.
ALH stumbling on cold start
See video below. Wondering if anyone has any thoughts before I take it into a shop.
ALH stumbling on cold start