Bear with me: Astra 1.7DTi problem

Bear with me: Astra 1.7DTi problem

Author
Discussion

RobJShe

Original Poster:

17,911 posts

225 months

Tuesday 29th July 2008
quotequote all
Chaps,

Not a sexy car but is my trusty work steed and I am looking for advice.

Car has done 106,000 miles and runs well, EXCEPT when doing 80mph + for prolonged periods. After running at 80mph (ish) for 10 miles max I feel the car "cough" and the engine management light comes on. I slow down and the light goes out after a few miles.

All I ask is WTF?

bencollins

3,556 posts

212 months

Sunday 24th August 2008
quotequote all
u havent got an answer so ill give you a half arsed guess.
at 80mph lots of fuel is being used (comparitively) so the fuel system is running at a higher rate stirring up some gubbins. Maybe the fuel filter or line (or exit at the tank) is already semi blocked so the stutter is when fuel isn´t getting there for a few moments as debris is "awakened" and non firing then occurs.
Anyway this crap answer might inspire a better one!