2005 Ford Mustang rough idle

JD2005GT

MEMBER
2005 FORD MUSTANG
V8
2WD
MANUAL
80,000 MILES

Let see to start I was checking to see what was ratteling under hood. Sounded like maybe a stuck lifter so I thought I would check on plugs and coils. They seemed ok and working until I broke one off in head. I used an ease out and replaced plug. After that the car ran rough at idle and would stall occasionally. If I got it over 1500 rpm it would run fine but when idle drops back down it would run rough again. What could be wrong? I hate electronic throttles!

3 Replies

RACEFAN966

MECHANIC
5,029 POSTS

Ok did you replace all the plugs or just that one? If just that one then replace the rest of them with the an OE type (meaning what ever brand you like but it stock is platnium then stay with that). I don't like Bosch plugs however I found them to cause a miss in my Mustang. Now with that I would check the cam shaft sensor for the ticking noise you are hearing. Let me know what you find and we will go from there.

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Thursday, September 2nd, 2010 AT 10:58 AM

JD2005GT

MEMBER
2 POSTS

Ok so I replaced all of the plugs yesterday and still had the same problem with rough idle. So I gave up for the night now this morning it would not start at all and I have a really strong gas odor and smoke coming out of drivers exhaust pipe please tell me it's not valves

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Saturday, September 4th, 2010 AT 9:55 AM

RACEFAN966

MECHANIC
5,029 POSTS

OK I need you to do two things. First check for spark. If you have spark then I would like you to unplug the mass air flow meter and see if it will start then. Let me know what you find.

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Wednesday, September 8th, 2010 AT 8:59 AM