n4th4n1993 Posted March 13, 2015 Share Posted March 13, 2015 Im not sure if its a problem or its just normal i have a mk2.5 focus 1.8 and on first start up and when throttle applied when stationary the revs drop right down like it wants to stall and has done before. Can anyone help me ? Sent from my iPhone using Ford OC Quote Link to comment Share on other sites More sharing options...
Jonno94 Posted March 13, 2015 Share Posted March 13, 2015 It could be your fuel filter Quote Link to comment Share on other sites More sharing options...
greggp Posted March 13, 2015 Share Posted March 13, 2015 Throttle body! Had exactly same issues. Never again since replacing. Not cheap fix mind. Quote Link to comment Share on other sites More sharing options...
Danthorpe1983 Posted March 13, 2015 Share Posted March 13, 2015 Check your maf and check your idle control valve also check throttle position sensor Quote Link to comment Share on other sites More sharing options...
n4th4n1993 Posted March 13, 2015 Author Share Posted March 13, 2015 Cheers thanks for that Sent from my iPhone using Ford OC 1 Quote Link to comment Share on other sites More sharing options...
Danthorpe1983 Posted March 13, 2015 Share Posted March 13, 2015 Best to try and clean cheaper parts first and try them Quote Link to comment Share on other sites More sharing options...
n4th4n1993 Posted March 13, 2015 Author Share Posted March 13, 2015 Do you think it would just need a clean Sent from my iPhone using Ford OC Quote Link to comment Share on other sites More sharing options...
Danthorpe1983 Posted March 13, 2015 Share Posted March 13, 2015 Often a clean will work if not then start with the idle control valve, then try the maf best test to see if the maf is the culprit is to unplug it and see if the car runs ok and clean with brake and clutch cleaner aerosol as evaporation is very quick change them only if problem persists if you can if a mate has a car the same try there maf on your car this will save buying one if it doesn't cure the problem after a clean also check for air leaks/losses around the inlet manifold as a loss in vacuum can also cause this and then if it is none of the above the throttle position sensor is where I would look next as sometimes they stick and or can't sense the correct position of the throttle butterfly causing running issues Quote Link to comment Share on other sites More sharing options...
n4th4n1993 Posted March 13, 2015 Author Share Posted March 13, 2015 How would i clean the throttle cause its and electronic one and cant move it by turning the cable like old cars Sent from my iPhone using Ford OC Quote Link to comment Share on other sites More sharing options...
Danthorpe1983 Posted March 13, 2015 Share Posted March 13, 2015 If this can't be done look up a good mobile auto electrician to run a diagnostic test but even an electronic throttle still should have a removable position sensor as it's a part that can fail unless ford want people to spend more money and made it non serviceable by people like you and me Quote Link to comment Share on other sites More sharing options...
n4th4n1993 Posted March 13, 2015 Author Share Posted March 13, 2015 Okay mate ill have a look into it cheers Sent from my iPhone using Ford OC 1 Quote Link to comment Share on other sites More sharing options...
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