98 gt rough idle and loss of power Please Help!! - Ford Mustang Forum
 
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post #1 of 3 (permalink) Old 12-02-2013 Thread Starter
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Exclamation 98 gt rough idle and loss of power Please Help!!

For about 6 months now I've had poor throttle response and bad gas mileage on my 98 GT. When I start it up cold, it runs like a champ but when it warms up, it has poor throttle response. About a month ago, it started to have a very slight miss at idle and has progressively gotten worse. It also sometimes has a weird kind of slow start. This all seemed to start happening when I washed the engine with water and changed the battery. So far I have changed the fuel filter, cleaned the maf sensor, replaced plugs and wires, and I am now wondering if it might be my fuel pump or regulator. I don't know much about mustangs so any help would be greatly appreciated!

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post #2 of 3 (permalink) Old 12-02-2013
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if im correct that car has a coil pack if im right then u need a new coil pack i done the same thing on my 97gt i had


Drinking gas an breaking sh** since 1994!!!!!
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post #3 of 3 (permalink) Old 12-02-2013
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the coil packs dont like to washed lol

Drinking gas an breaking sh** since 1994!!!!!
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