My 1990 Ford Fiesta stalls when coasting. I've cleaned the carb, but what else can I do?

I have a Ford Fiesta 1.3 OHV G reg 1989/1990. It starts on the button and runs ok, but will not idle. If you come to a junction and remove your foot from the accelerator, the engine stalls. I have cleaned the carburettor - any other suggestions?

Asked on 6 August 2010 by franksfiesta

Answered by Alan Ross
When you say you've cleaned the carb, have you stripped it down and cleaned the jets? You have an idle process on the carb which may have a fault, ie blocked, but that is rare. What you may have is an air leak which is between the carb and the inlet manifold. I would suggest that you check any pipes that are connected to the inlet manifold to make sure that they are not disconnected or split, as this would result in a weak mixture which results in the engine stalling on idle. If you are absolutely sure that there are no air leaks then it may be that your ignition timing is slightly out, or that you have a fault in the carb.
Similar questions
For people having hassles with Pierburg 2E carburettors, I discovered a little secret that is causing the 2E to get a bums rap.
My car can suddenly stall and engine cut out after driving half a mile. Try to restart it and the revs will not stay up to idle speed and the engine cuts again. If I rev the engine for a while and then...
We have a 2006 2.0-litre petrol automatic Peugeot 807. It runs well and when plugged into a diagnostic machine there are no faults or issues. However, on occasion the throttle is unresponsive from standing...
Related models
Peugeot 205 looks and optional five-doors, RS Turbo quick and brutish, RS1800 much more civilised

Ask Honest John

Value my car