5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

95 cobra NEEDS HELP!!

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Old 10-07-2007, 08:07 AM
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1995svtcobrawr
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Default 95 cobra NEEDS HELP!!

I have a 95 svt cobra that falls on its face when you press on the gas. It has no acceleration what so ever and will barely hit 100. I just changed the spark plugs and dont know whats wrong?



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Old 10-07-2007, 08:10 AM
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mjr46
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Default RE: 95 cobra NEEDS HELP!!

does it start up and idle smooth??? any hesitation driving normally??maybe clogged fuel filter?? dirty mass air meter???
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Old 10-07-2007, 08:14 AM
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1995svtcobrawr
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Default RE: 95 cobra NEEDS HELP!!

Yes it does it runs good but just has no power. No hesitation. The RPMS when you gun it dont shoot up like they should. Well ive heard it could be the fuel filter and im getting a new one tomorrow! And what is a mass air meter
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Old 10-07-2007, 08:36 AM
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Default RE: 95 cobra NEEDS HELP!!

the mass air meter measures the amount/speed of the air entering the motor so it knows how much fuel to add....this is the simple way to explain it.....on the air tube going to the throttle body or on the air box where the air filter is if you still have the stock one if not and you've got a k&n filter there is an electrical connection going to that tube ...it's usually a 4 to 5 wire connector that is where your mass air meter is...I'd clean it with special cleaner called mass air cleaner bought at napa or autozone.......if you got a k&n filter what happens is the oil off the filter collects on the sensor and the residue skews the readings then the car falls on it's face on acceleration!!!
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Old 10-07-2007, 08:44 AM
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Default RE: 95 cobra NEEDS HELP!!

Was this a problem before you changed the plugs, or a result after?
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Old 10-07-2007, 08:55 AM
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Default RE: 95 cobra NEEDS HELP!!

we also need to know your COMPLETE list of mods... your mileage... and Do you still have your factory Cats?
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Old 10-07-2007, 09:13 AM
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1995svtcobrawr
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Default RE: 95 cobra NEEDS HELP!!

This problem was before i changed the plugs.

i got this car from a old ladie and its all stock.

no mods

166k miles

and yes i have my factory cats. should i cut them off?
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Old 10-07-2007, 09:26 AM
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mjr46
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Default RE: 95 cobra NEEDS HELP!!

no don't cut them off just yet but they could be partially restricted if they've broken apart and started to clogg the pipes......start simple first like cleaning the mass air and remove fuel filter and try to blow through the inlet side.....if you turn red in the face like a beet then replace it
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Old 10-07-2007, 10:34 AM
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aode08
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Default RE: 95 cobra NEEDS HELP!!

ORIGINAL: 1995svtcobrawr

i got this car from a old ladie and its all stock.

no mods

166k miles
that explains alot right there


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Old 10-07-2007, 11:11 AM
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Default RE: 95 cobra NEEDS HELP!!

get under the car and remove one of the O2 sensors from the exhaust, and take the car for a ride. Yes, you might get a check engine light. but if it runs much better and feels like it has more power than before... its time to ditch your cats
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