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Discussing Bad running... in the 5.0 Mustangs Forum. I replaced my O2 sensors yesterday. It made a tremendous difference. I then proceeded to ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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July 15th, 2007, 11:40 AM
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#1 |
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Regular
1983 Mustang GT
N/A
Join Date: Feb 2007
Location: Tucson, Az
Posts: 120
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Bad running...
I replaced my O2 sensors yesterday. It made a tremendous difference. I then proceeded to wash my car, but left the key turned on when I rolled my windows up. My battery was drained. I popped the clutch to get it cranked, and after I drove it about a mile it started running awful. It would idle fine, but when I pressed the gas, it would barely go. I got under the hood, and it seemed to backfire, and sound flooded when I pressed the gas. What's my problem?
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July 15th, 2007, 02:32 PM
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#2 |
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Banned
1990 Mustang LX Turbo
9.71@141.6 mph
Join Date: Oct 2006
Location: NY
Posts: 8,783
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either your spark is extremely low or there isnt enough gas to support the power
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July 15th, 2007, 03:10 PM
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#3 |
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Enthusiast
Join Date: Oct 2006
Location: Augusta, GA
Posts: 906
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If it is the problem that you don't have great spark....
Do you have any mods on your car that would lower your voltage? Heavy electronics, underdrive pulleys, electric fan, old alternator could cause you to have lower voltage output which is a problem now that the battery is dead. |
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July 15th, 2007, 07:07 PM
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#4 |
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Regular
Join Date: Apr 2007
Posts: 428
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i have this same problem but i think mine is a leak on the front glass that gets into all my wires and its cuts out and surges real bad but after it drys off its fine
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July 15th, 2007, 07:25 PM
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#5 |
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Hardcore Enthusiast
89 GT
Join Date: Apr 2007
Location: Happy?
Posts: 1,273
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did you drive it for a little bit?... I don't know about these computers on mustangs but a lot of newer cars need to "relearn" how the car operates, sensor readings and so forth. sometimes you have to drive it around for a little bit to get it back to normal after a power loss.
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