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Old 01-07-2013, 07:21 PM   #1
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Help me please

So I've been having trouble for two weeks with no car because I washed my car with a power washer and my car shakes and struggles when press on gas at low rpm's like around 1500 rpm's and has loopy idle. Feels like I lost power. Some one please help I changed spark plugs what could it be MAF, COP, a sensor of some kind maybe coil wires? My batter is relocated to back so I didn't get it wet. Please help.
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2004 Mustang GT 5 Speed
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12.1 @ 117.9 (1.7) in 1/4th
7.6 @ 92.1 (1.6) in 1/8th
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Old 01-07-2013, 07:29 PM   #2
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any codes?
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Old 01-07-2013, 07:31 PM   #3
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Sounds like you have a bad miss. I would start with cop
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Old 01-07-2013, 07:33 PM   #4
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any codes?
No codes
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12.1 @ 117.9 (1.7) in 1/4th
7.6 @ 92.1 (1.6) in 1/8th
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Old 01-07-2013, 07:39 PM   #5
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did you check all the wires and make sure the pressure washer didn't knock anything loose or off
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Old 01-07-2013, 07:41 PM   #6
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I had the same thing happen to me. Didn't use a power washer i used a hose. Long story short, ended up getting a coil pack wet, and it didn't throw a code right away either. If it does throw a code just change the coil pack from another cylinder and see if the code changes. Worked for me went and got a new coil pack for $50 from Ford
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Old 01-07-2013, 07:44 PM   #7
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I had the same thing happen to me. Didn't use a power washer i used a hose. Long story short, ended up getting a coil pack wet, and it didn't throw a code right away either. If it does throw a code just change the coil pack from another cylinder and see if the code changes. Worked for me went and got a new coil pack for $50 from Ford
Thank you! I was hoping somebody was experience the same as me now ik was it one of the #1-#4 coils?
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2004 Mustang GT 5 Speed
Full Bolt Ons
370rwhp 470rwtq
12.1 @ 117.9 (1.7) in 1/4th
7.6 @ 92.1 (1.6) in 1/8th
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Old 01-07-2013, 07:51 PM   #8
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well mine was like cylinder 5 or something. Code was basically cylinder 5 misfire more or less. so just switch with a cylinder you kno is still good and code should change. If your car is running that sh*tty then you should def. be throwing a code. If u have the money upgrade to an MSD pack
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Old 01-07-2013, 08:09 PM   #9
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Quote:
Originally Posted by Jcastro7608 View Post
well mine was like cylinder 5 or something. Code was basically cylinder 5 misfire more or less. so just switch with a cylinder you kno is still good and code should change. If your car is running that sh*tty then you should def. be throwing a code. If u have the money upgrade to an MSD pack
Ahh it doesn't run that bad just at low rpm's but glad that I know the problem it stressed me out I got some coils from a crown Vic but the metal flange's are to wide for the electrical connection so they don't fit. I thought they are supposed to fit?
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2004 Mustang GT 5 Speed
Full Bolt Ons
370rwhp 470rwtq
12.1 @ 117.9 (1.7) in 1/4th
7.6 @ 92.1 (1.6) in 1/8th
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Old 01-07-2013, 09:04 PM   #10
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I bought a coil from jegs just to keep in the trunk for emergencies and to test for other bad coils. I think it was like 17 or so. I know most people won't run these but one is great for cheap trouble shooting. If you find a bad coil then go buy a ford factory one cause they are better.
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