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I was out driving one day on the freeway at 67 mph in my 2008 V-6 4.0 Mustang Pony package auto transmission with 29,800 miles. I always run 91 octane 100% gasoline and I do drive it hard.
:myangel
I started going up a hill with the cruise control on A/C on max, when I felt a misfire. The check engine came on.
First place I went to was auto zone (same day). They pulled the code of P0442 (Evaporative Emissions Control System Leak) I checked the gas cap and cleaned it.
3 days later the light was still on. :so I had it checked out by the dealer and the P0442 was gone. I now had the P0303 (cylinder 3 misfire detected) and P0507 (idle air control system).
The Mustang used to idle at 550 rpm a little rough. Now it's been idling at 750 rpm smooth as anything.
Please help me out here the dealer:banana: wants a lot of money just to find the problem out.
:myangel
I started going up a hill with the cruise control on A/C on max, when I felt a misfire. The check engine came on.
First place I went to was auto zone (same day). They pulled the code of P0442 (Evaporative Emissions Control System Leak) I checked the gas cap and cleaned it.
3 days later the light was still on. :so I had it checked out by the dealer and the P0442 was gone. I now had the P0303 (cylinder 3 misfire detected) and P0507 (idle air control system).
The Mustang used to idle at 550 rpm a little rough. Now it's been idling at 750 rpm smooth as anything.
Please help me out here the dealer:banana: wants a lot of money just to find the problem out.