2011 GT Automatic Slight Miss
03-15-2014, 09:49 AM
#1
Thread Starter
Join Date: Mar 2014
Location: South Carolina
Posts: 7
2011 GT Automatic Slight Miss
I have a slight miss at idle and mild acceleration. It threw 3 codes P0300 Random Misfire, P0302 Cylinder 2 misfire, and P0304 Cylinder 4 misfire a couple months ago. I was able to duplicate this same issue and i took it to Ford a couple weeks ago. Told me i needed new plugs and coils at cylinders 2 and 4. I had already replaced the plugs 300 miles before so i ordered a set of coils and replaced the entire set. Engine light went off but it still has the slight misfire especially at lower RPMs. Any ideas?
03-15-2014, 09:57 AM
#2
Thread Starter
Join Date: Mar 2014
Location: South Carolina
Posts: 7
Additional information. This started when the car was stock except for the GT500 ehaust. Before i tried to fix it i added a JLT cold air intake and a BAMA tuner thinking the tune might help this problem. Took it back to stock before i took it into Ford. Reloaded the tune and intake after replacing the coils.
03-26-2014, 01:26 PM
#6
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Join Date: Mar 2014
Location: South Carolina
Posts: 7
03-26-2014, 02:09 PM
#7
Thread Starter
Join Date: Mar 2014
Location: South Carolina
Posts: 7
03-26-2014, 02:11 PM
#8
Thread Starter
Join Date: Mar 2014
Location: South Carolina
Posts: 7
Having them add the o ring and perform the entire TSB 13-6-15 today. They claim misfire when driving in cylinders 1, 2, 4, and 5 now with 2 being the main culprit. I guess we will see if this works or not.
Last edited by LWT96; 03-28-2014 at 08:54 PM.
03-28-2014, 08:55 PM
#9
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Join Date: Mar 2014
Location: South Carolina
Posts: 7
Ford performed TSB 13-6-15. Did not help. Back to the drawing board.
