Question about 1995 Ford Crown Victoria

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I have a 1995 Crown Vic' that has 102000km, it recently started to sputter and buck a little accelerating, I then replaced the plugs, coil packs, TPS sensor, checked vacuum lines, cleaned MAF sensor and still does a bit but not as bad it seems...what could this be at such low milage?

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Run it at night with it dark under the hood and see if you have any sparking from the wires to ground or any other shorts. also replace the fuel filter and run a can of seafoam in your tank on your next gas fill.

Posted on Mar 17, 2014

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  • Doug
    Doug Mar 17, 2014

    I have tryed Seafoam in it first after I changed the fuel filter thinking maybe just bad gas, but to no avail. Then I was told the TPS goes on these cars, so I thought at 100k I might as well do a tune up, so I did the plugs, TPS, Coils, Cleaned MAF Sensor, checked for vacuum leaks being these cars aparently bad for issues with it as well as checked for air getting in after the MAF sensor...I'm stumped now. OHMs on the #4 injector are good (is the #4 cylinder that came up misfire) leads are good, still need to test voltage at the leads...I'll check for spark loss, is odd the car runs like a champ untill 70k or so and will cough, but not all the time

  • riverotter
    riverotter Mar 18, 2014

    have you rechecked the plug to see if the insulator is broken...has happened.

  • Doug
    Doug Mar 18, 2014

    Do you mean the plug for the injector?

  • riverotter
    riverotter Mar 19, 2014

    the plug



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SOURCE: 1995 crown vic sputters and pops when i step on it, in the LOWER RPM ranges

No idea as iam a europeon mechanic whos never seen this motor so i have no idea where the bits are located ,but firstly i would check the fuel line pressure to make sure you have 55lbs pressure on the fuel rail ,then this OBDII code of cylinders 6/8 and i hate to think it even but if the fuel pressure is ok then i would be inclined to the crank sensor but ?? difficult to say here but with the fault code then it could be a faulty computer

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Posted on Nov 04, 2013

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My 1996 Crown Vic. recently started to buck and backfire a bit, turned out to be a misfire on #4, have been looking into it with a bit of progress but not complete success

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I have a 2000 Crown Vic Police Edition. When I 1st bought it, the car was misfiring so I had the two misfiring coil packs replaced after the car broke down and wouldn't accelerate any longer. Almost 5...

Hello! I see you have multiple issues...Do you have the check engine light on? if you can drive the car to an auto parts store they will pull the codes for free...If there aren't any trouble codes I wouldn't suspect coils...It acts like it has a defective Throttle Positioning Sensor (TPS)...Lets eliminate...It is bolted to the side of the throttle body...It has a three wire connector with the following wire colors...Brown/White...Gray/White...And Gray/Red...Do you have a multimeter and a wee bit of experience using it?
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saailer_175.jpgMOTORCRAFT Part # DY967..Cost=$45


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How can i check my coil pack on a 1998 f 150 4.2

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