Hi
I have a T plate 1.3 Colt which has developed a slight misfire when idling, but much more serious when cold. There is also a slight shake when stopping at traffic lights etc. The problem has appeared suddenly rather than progressively.
Main dealer have looked at the car, found that plug 1 made *less* of a difference when removed. New lead & plug didn't fix it. Compression test = 150 / 160 / 160 / 175 - all within reasonable but they were surprised at the difference between 1 & 4. Fuel injector on 1 is pulsing ok.
All they could suggest was replacing the distributor cap (medium cost) or investigating the fuel line & replacing injector to no.1 (high cost), but could not guarantee that either of these would fix the fault. Cam belt fitted 10,000 miles ago.
Should I go for the distributor cap first as the cheapest option - I could fit this myself? Or let the fault develop a bit more since none of these are likely to cause complete breakdown (although its so shaky when starting I'm a little worried whether it will start when the weather gets colder).
Any suggestions what to do now? The fault is tolerable at the moment but is definitely noticeable. I also *think* it's using a little more fuel but I can't be sure.
Russell