My ford festiva 1991,when the car has rested for 8 hrs,and i go to start it,my automatic choke takes my refs to three thousand,but with in around 3-4 minutes the car starts to slow in refs and idles normally.i would much rather have it not operating.how do i slow it down.
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It is a combinatioin of a choke problem...and settings called idle air mixture screw........the choke is adjusted too high.....(increasing the amount of fuel entering the engine)...and then it leans out (not enough fuel) for idle.........i would suggest that you take it to a mechanic who "tunes" carburettors...a sprecialist so to speak, as it is a dying art...or take it to the dealership.........this would be a last option......beacuse it does not have a computer...its a case of listening and observing what the engine does and how it behaves as the screws are adjusted.......so it would be nearly impossible for me or anytone to be able to do it over a medium like this.......
Hello, when you say that the auto-choke is "on", you mean that the choke plate is stuck closed on the carburetor. This causes an overly rich fuel mixture and fast idle and other problems as you have hinted at. There is a wire that runs from the black cap on the left side of the carburetor that runs to the alternator. On my Festiva, the wire is red in color and its the only wire coming from the black cap with a bi-metal spring inside. You need to check the wire for a short circuit and to test if voltage is getting to it from the alternator. My guess would be that the wire came loose or it is not being powered by the alternator. So get a 12V test light and test the wire leading to the choke spring cap to see where the break in the wire is. Run a continuity test from one end to the other and look for 0 Ohms for a good connection. If you have continuity and good current, then I would say that your bi-metal spring it broken in the choke cap, so you can replace the cap by removing the 3 screws or rivets and replacing it with a new one.