I have had Ford replace both converters and 02 sensors new and its stores and 02 sensor code when this miss fire and sputtering starts.
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2001 Ford Mustang GT Question: My 01 mustang 3.8 starts to mist and sputter after normal driving every 35 to 40
Answer #1Greg's Orange Auto (10955 Answers) , Orange, CA - (714) 482-6185globalhelper October 30, 2012, 12:35Master
could be plug issue , coil pak or injector issues,have someone scan live data on veh
Replybigray12, October 30, 2012, 12:55Rookie
It has a new coil pack,new cam and crank sensor. But most importantly is the fact that when it starts to sputter after about 35miles of driving.I put the car in neutral and turn the key off and start it back it stops sputtering and drive normal for 30 to 40 more miles
Replyglobalhelper, October 30, 2012, 13:04Master
sounds like an elect break down. ford has whats called the wiggle test believe it or not. try wiggling wires to coil pak and inj to see if that will duplicate the issue. just asking where did you purchase coil pak? iv seen after market ones break down even though they were new
Replybigray12, October 30, 2012, 13:20Rookie
Autozone but my thing is why does it stop this problem once I re-entergize the power with the key switch. This is a 3.8 we talking about
Replyglobalhelper, October 30, 2012, 13:30Master
hard to say but when you shut off ignition you automatically reset computor. you may have a corrsion issue or a loose connection which can cause high resistance in wiring
Answer #2ziptie12 October 31, 2012, 10:15Master
Has Ford done any actual DIAGNOSIS , or were they just replacing parts at your request? This 'intermittent' problem should be watched with a scanner when acting up. If needed drive the vehicle til it's acting up and don't shut it off!!! Have this pre-planned with your service writer at the dealership, and bring it in for the tech to go on a test drive with you. EXPECT TO PAY FOR The techs time / test drive & diagnosis!!! Especially if you expect to take their diag. and do the repairs yourself. IF they are sure about their diagnosis , have them put it in writing and let them fix it. Hold them to it.