Question about 2005 Ford Crown Victoria

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My 2000 crown vics engine runs rough in park at mid throttle,and drives like i am on a bumpy road at mid throttle,replaced shocks, tires, balancing,alignment. please help

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At idle?tune up stuff,coil or coils.start with the small stuff!

Posted on Oct 03, 2009

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I suggest you look at or have the engine looked at, for air intake obstructions, engine mount problems, or possiblt drive shaft/u-joint problems. Those are my best guesses for your problem description. Good luck!

Posted on Oct 19, 2008

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  • becker_const
    becker_const Dec 24, 2012

    having same prob with my 05. almost like throtle pedle wasnt telling engine right. replaced throtle position sencor and its still junk. ideas for that david?

  • becker_const
    becker_const Dec 24, 2012

    same thing with my 05. Seamed to be problem with throttle peddle not telling engine what to do in spots. replaced throtle position sencor and still junk. ideas David?

  • Benjamin Brownlee
    Benjamin Brownlee Jan 14, 2013

    Have you tested vacuum? Vacuum should be around 21 in/hg. I suspect you have a low vacuum and that can be caused by a leaking intake, bad intake gasket, or even a bad EGR valve. Do you have a check engine light lit up?

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I heard something snap and then noticed that the rear of the car drives very bumpy


Can you provide more info? Did you hit a bump? What do you mean by 'drives bumpy?' Does it ride rough, or does it go up and down a lot after you hit a bump, or something else? Can you further describe the snap you heard, and what was going on when you heard it and immediately afterward (e.g., driving 40 mph on a paved road, hit a pot hole, heard a loud 'breaking' sound as if something snapped/broke, and the ride of the car seemed to immediately change to being more harsh/rough)? Have you had any work done recently, such as tires changed or rotated, struts replaced, wheel alignment, or brakes replaced? Did anything else change (e.g., now when you hit a bump, you hear a new noise in the rear)? Were you carrying anything heavy in the trunk or back seat? I had a '99 Corolla for several years, and had zero problems other than a worn out driver's door handle and a couple of cracked windshields. Great car choice!

Jul 18, 2014 | 2000 Toyota Corolla

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Truck doesn't hold the road on bumps. Turning on bumpy road at highway speed causes the truck to skitter. Shocks have been replaced. Ball joints?


the caster needs to be checked as well as loose steering components too much negative caster will cause this also too much air in the tires

Dec 26, 2012 | 1999 GMC Sonoma

2 Answers

2001 chey blazer 2dr 2wd man rides rough drive only on paved roads feels every bumo tough ride had shocks checked they said good bilstein just got this vehicle what would help if anything someone...


I would check your tire pressure, if your running 60 psi it's going to be a bumpy ride, lower the air pressure to 35 psi and see if it makes a differance, does the truck move up and down when you jump on the bumpers or is it stiff ?

May 26, 2011 | 2000 Chevrolet Blazer

2 Answers

I have a 2000 mercury cougar. when i drive on a rough road or the road is wet the rear of the car slides to the right and i feel like the back end is going to fall off. this started after having the car...


I would check the rear sway bar links first.This is what keeps the car from going all over when turning and on bumpy roads.This is not an expensive fix.The control arms are a lot more.

Dec 23, 2009 | 2000 Mercury Cougar

1 Answer

1988 Ford Crown Vic Strange Idle (Getting Worse)


i am trying to install an aftermarket temperature guage with capillary tube into my 1988 crown victoria ltd 5.0 efi. where does the capillary tube mount?

Jun 27, 2009 | 1988 Ford Crown Victoria

1 Answer

1988 Ford Crown Vic Strange Idle


When you turn the key on does the check engine light come on? If not it may be burned out. It sounds like a MAP sensor or an O2 sensor is bad. I would suggest taking it to autozone as they do free diagnostic and seeing if a code comes up. If it is a sensor it should, if not it may be the idle sensor not reading right in the ECU. More than likely it is one of the sensors though.

Jun 23, 2009 | 1998 Ford Crown Victoria

1 Answer

The car rides rough.


Dear Alban: You may not like the answer, but the reality of the issue is this: The lower the profile the tire is, the less time there is for irregularities in the road to be absorbed. Low profile tires have very stiff sidewalls which equates into little in the way of flexing. The car was designed for 15" wheels with a totally different profile tire. There is always a trade off with ride and handing traits when big changes are made with wheels and tires. The big rims and low profile tires are the rage right now and this is a very big problem that I run across when cars come into my shop and customers complain about the ride and road noise. Whether it is a 300ZX or a Mercedes, makes no difference, I still get the same complaint. Some cars display the problem to a slight degree and others, it is very pronounced in. There is not a shock or strut in the world that will solve this problem. Your only solution if you can't live with the ride of a log wagon, is to get rid if the wheels and get something with a tire that has some distance between the road and the rim. mybunkey
SORRY>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Mar 14, 2009 | 1986 Nissan 300ZX

2 Answers

Ford Crown Vic p0300 random cylinder misfire


take a look at the EGR valve it could be either vacum controlled or electronic either way what seems to be the problem is that the valve is stuck in the open position until the engine warms up you can gently tap the egr valve with a small hammer or a screw driver and you can see that it runs smooth, now if the egr valve is vacum controlled replace the valve. if it is electronoc controlled replace the valve and the module for the egr valve.

Nov 02, 2008 | 2000 Ford Crown Victoria

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