Question about 2003 Ford Crown Victoria
Is the check engine light on?
I would first inspect the air filter, change it if it appears to be dirty.
Next, I would check the fuel rail pressure with the vehicle running at approx. 2000 rpm. If the pressure doesn't stay around atleast 40 psi I would change the fuel filter, if that doesn't increase the psi then I would check the fuel pump and relay.
Then I would change the spark plugs.
If that doesn't fix the problem you will need to start checking the ignition system and the sensors.
Post your results.
Posted on Mar 11, 2011
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Posted on Jan 02, 2017
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Aug 26, 2014 | Cars & Trucks
Try jacking up car and put on stands as high as poss as you could have air returning when the pedal is returned ,so jack up car pump pedal 4 times fast and hold down bleed l/h/s/first ,do 2 times then the r/h/side and then push down pedal clamp rubber flex hose over back axlewith small G clamp if pedal good do same to FRONT
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