2005 GT Misfire #6 Problem

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05-10-2012, 12:16 PM

#21

moosestang

6th Gear Member

Join Date: Sep 2006

Location: Gainesville, FL

Posts: 11,278

Quote:

Originally Posted by s197grl

Thanks for the idea, I will try that today..I have access to my husbands shop, so ill try anything that anyone throws out there! I'm getting only a P308 now..in the past I have gotten tons of codes but they have all been cleared and not returned. Its getting horrible gas mileage, seems to run rich, but no code for that at the moment.
The alternator was replaced about a year ago, that's why I haven't really dove into thinking that's the problem.
Thanks again Moose

Well it's probably a long shot, but since you've just about replaced everything, I would try removing the under drive pulleys. I came across this post when searching for misfire solutions. It's seems the pulleys can cause a misfire. I'm not a big fan of under drive pulleys.

http://www.modularfords.com/f4/misfi...-crazy-169475/

05-12-2012, 02:20 AM

#22

s197grl

Join Date: May 2012

Location: CA

Posts: 9

Quote:

Originally Posted by moosestang

What code are you getting? You have to do a ripple test on the alternator, not a standard test. Place a digital voltmeter on the battery, with the car running, set to the lowest AC voltage. It should read very low, like less than .1 volts AC.

I did the ripple test and everything is good, as well as the starter and battery. It did read that cyl 8 injector was malfunctioning, evven though I replaced all of them, maybe got a bad one? So I picked up another injector today and ill throw it on in the am. We will go from there I guess. Thanks for letting me know about that ripple test, I'm sure it will come in handy with one of our other cars

05-29-2016, 12:47 PM

#23

brandi13

Join Date: May 2016

Location: GA

Posts: 2

05 Mustang misfire

ive had my mustang for almost 2 years and a year ago it started giving me a P0300 random misfire code. since then ive had a p0304, p0305 p0300 codes show up. (also other codes but i think they are because of the misfire) over the course of a year I have had all my o2 sensors replaced, all spark plugs, the coil pack and wires replaced. Ive also had the computer checked and still the misfire comes back. Im tired of paying money for someone to play around in my car and still not fix the issue. Could anyone maybe point me in the right direction so maybe I can mention it to a mechanic, if there is another solution to be found?

Thanks