Question about 2006 Ford Crown Victoria

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2006 crown vic at 45-55mph vehicle is bucking,

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When was the last time you had checked the spark plugs? My \'01 Grand Marquis had the same disease, which progressively got worse. Eventually it threw a code for a misfire. Pulled the plugs for a check and the electrodes were horribly eroded.

If you are going to do the job/check yourself, be careful as one bank of plugs is installed at a slight angle. I would also recommend that once you remove the boots, you use a shop vac (or vacuum in general) with a narrow attachment to suck out any debris from the well to avoid it from falling into the cylinder.

Since the new plugs (I also cleaned the boots and electrodes, and used dielectric grease on install) she is smooth as glass.

If the plugs are normal, you could check into the torque converter clutch (TCC), but normally the shaking would continue throughout the drive range and not only kick in at a particular RPM. Suggestion would be to put the car in 1st or 2nd on the gear select, and gradually increase speed until the engine is at about the same RPM as it would be for cruising 45-55 (a scan tool with live read will work to get RPMs). I tried this and got the same buck in 1st gear at about 13-15 mph and again in 2nd at about 25. It is not as herky jerky, but you will feel a little bucking. Another test I did to ensure the problem was in the plugs/ignition was leave the car in park, open the hood, and remove the plastic cover from the top of the engine. Using your hand, gently apply pressure to the throttle body opening it a bit. Before I replaced the plugs the engine was shuddering pretty bad as the engine RPMs increased.

Posted on Jan 30, 2014

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Posted on Jan 02, 2017

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SOURCE: Wiper motor replacement for a 99 crown vic

I replaced the same part on a 1994 Crown Vic. There are a few bolts which go through rubber mounts on the firewall and that is how the wiper motor fits against the firewall. There is a clip on the wiper drive that must be pressed and slid off the wiper shaft. The hardest part was getting clearence between the engine and wiper motor. If I remember there was a way to turn the wiper case to clear the engine. I have asked myself why this was engineered like this? There is nothing important in the way that 3/4" of clearance could have been given for removal.

Posted on May 06, 2009

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SOURCE: Replace horn on 2006 crown vic

I believe once you have mounted the horn and connected the wire you will find that the horn wire was cut at (by) the steering coloum that the siren override was hooked to,you will have reconnect this,I hope this helps you

Posted on Jul 04, 2009

johnjohn2
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SOURCE: what is the wrench symbol

This is to remind you of the oil change, and also they have it programed to come on every 7500 miles for service, this is so they can sell you something but basicly for oil changes, to reset the light and when you have an oil change you should ask them to reset it even if its not on, depending on how often you do an oil change you may just need to reset every second oil change, for example an oil change should be done every 3,000 mile this way the light comes on and you can wait until the oil is due the second time, hope this helps. to reset turn key on all the way but dont start engine make sure all doors are closed then push and hold the trip button until you hear 3 beeps system is now reset.

Posted on Dec 08, 2010

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Have had to troubleshoot similar issues - if there are no fault codes - don't rule out Tune up problems like missfiring spark plugs.
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a31eb6c.jpg

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