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Ford Five Hundred/Mercury Montego: Maintenance & Repair

182 messages,  Last post on Oct 23, 2009 at 12:59 PM

You are in the Ford Five Hundred/Mercury Montego Forum. Your Hosts are pat & karens

What is this discussion about? Ford Five Hundred, Mercury Montego, Sedan


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#1 of 182
Ford Five Hundred/Mercury Montego: Problems & Solutions by KarenS HOST
Jul 24, 2006 (11:14 am)
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Post your Five Hundred/Montego issues here.
#2 of 182
Ford Five Hundred Vibration by charlescurtis
May 18, 2006 (4:33 am)
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2006 Ford 500 SE Vibration and Other Problems
 
The car vibrates in the driver's seat at 65 MPH until 72 MPH. (The speeds I cruise at). Ford re-balanced the tires at 1,100 miles - after which the vibration still existed. A Ford technician drove the car, and acknowledged the vibration, and informed me it was likely not tire related. At the time, it was very notable to the technician, and he stated that he would go to Ford and research the problem. Just to be sure , they swapped all the wheels and re-test drove it, but the vibration still existed.
 
After 1 week Ford said - the vibration is not enough to warrant any further examination. Live with it. - But to me the vibration is VERY noticeable, and annoying. Why should a new car vibrate at highway speeds?
 
I decided to test drive other Ford 500's, thinking I could trade in my vibrating car. Test Drive revealed that all the cars have the same type of vibration. Some more ... some less.
 
The salesman suggested - "It's got to be tire related. Ford puts pretty cheap tires on the car. I advise you to buy a set of high - end Michelins for your car." Personally - I don't want to add another $1,000 into my investment in the car to get it to ride smooth! Will the ride change?
 
Other problems
 
1. The rear brake rotor was causing a serious chattering in the brakes, when braking at highway speeds. Odometer: 60 miles - Ford repaired the problem - turned the rotors, and removed glazing from the pads. (Imagine: Bad brakes at Odometer reading of 60 miles!)
 
2. Motor pings when accelerating. Odomoter: 1,500 miles. I purchase Shell gasoline.
 
3. My center console compartment on the dashboard is bubbling up. Odomoter: 2,200 miles
 
4. Dialing the heat/cool temperature produces an annoying creaking noise. Odometer: 1,500 miles
 
I wonder why can't Ford get it right. I am really disappointed.
#3 of 182
Re: Ford Five Hundred Vibration [charlescurtis] by barnstormer64
May 18, 2006 (7:29 am)
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Replying to: charlescurtis (May 18, 2006 4:33 am)

Vibrations like this are almost ALWAYS tire-related.
 
Find a place that can balance them at a particular speed.
#4 of 182
Re: Ford Five Hundred Vibration [charlescurtis] by evandro
May 18, 2006 (7:43 am)
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Replying to: charlescurtis (May 18, 2006 4:33 am)

This problem is becoming more and more common as designers stiffen the chassis, raising its resonant frequency.
 
I've had this same problem on my Bonneville (see this), but it was also noted on other FWD full-size GM cars and, more recently, on the new Grand Prix. After 4 tire sets, two OEM, one Continental and one Michelin, and careful road-force balancing, the problem still persists.
 
I seriously suspect that it's not the tires, as the vibration can come and go with no change in the speed and even vanish above 75MPH or so. The vibration seems to vary according to the roughness of the pavement too. Maybe it's the soft bushings, maybe the multi-link rear suspension, I don't know...
 
Please, keep us informed about your findings.
#5 of 182
Re: Ford Five Hundred Vibration [evandro] by bruneau1
May 19, 2006 (3:06 pm)
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Replying to: evandro (May 18, 2006 7:43 am)

Aside from poor balancing and anything else that may be correctable, the chief problem with vibration is related to the use of low profile tires. I have ridden in some expensive cars with harsh, jittery rides, and i am convinced it's related to low profile tires. After all, the less cushion and give, the more pavement problems will be noticed. Sure, we want good handling, but car makers have gone too far. Anything below a 60 profile is going to be harsher and noisier, and there are many vehicles that shouldn't even be using 60
#6 of 182
Re: Ford Five Hundred Vibration [charlescurtis] by vic10
May 22, 2006 (8:41 am)
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Replying to: charlescurtis (May 18, 2006 4:33 am)

A few years ago I bought a very bad set of Firestones (redundant, I know). The car vibrated similar to what you describe. It wasn't balance. It wasn't alignment. Had them shaved for being out of round. Wasn't that. But a friend following me one day noticed that the tires appeared to wobble from side to side. THAT was the problem. The tread was messed up laterally. Possibility here....
#7 of 182
Re: Ford Five Hundred Vibration [vic10] by barnstormer64
May 22, 2006 (10:25 am)
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Replying to: vic10 (May 22, 2006 8:41 am)

It was probably tread separation . . . which can definitely affect "balance". Of course, rebalancing the tires won't help in that situation . . you just need new tires. Most tire warranties will cover tread separation.
#8 of 182
Re: Ford Five Hundred Vibration [vic10] by evandro
May 22, 2006 (10:40 am)
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Replying to: vic10 (May 22, 2006 8:41 am)

Quite possible.
 
In the case of the OEM Goodyear Eagle RS-A, the dealer said that they it wasn't an out-of-balance issue, but rather that the tire had some hard spots on the side-wall and, being low profile (P55), was more susceptible to them.
 
Sounds reasonable, but didn't solve the issue. I tried Continental ContiPremierContact out of my pocket and after a day in the parking lot, it would need to warm up to lose the wobble due to the 8 hour-belly. After 1000mls they were returned.
 
Yet, even after shelling premium $$$ for a set Michelin MXV4+, though immune to wobble, it still vibrates between 65 and 70MPH. The tires have been road-force balanced twice to strict tolerances, so I'm getting open to something else other than the tires at least contributing to the vibration.
 
Of course, I'm talking about my '02 Bonneville, but perhaps could help you guys with your 500 when talking to your Ford dealer.
 
HTH
#9 of 182
Re: Ford Five Hundred Vibration [charlescurtis] by vrm
Jun 01, 2006 (10:19 am)
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Replying to: charlescurtis (May 18, 2006 4:33 am)

Other problems
  
1. The rear brake rotor was causing a serious chattering in the brakes, when braking at highway speeds. Odometer: 60 miles - Ford repaired the problem - turned the rotors, and removed glazing from the pads. (Imagine: Bad brakes at Odometer reading of 60 miles!)
  
2. Motor pings when accelerating. Odomoter: 1,500 miles. I purchase Shell gasoline.
  
3. My center console compartment on the dashboard is bubbling up. Odomoter: 2,200 miles
  
4. Dialing the heat/cool temperature produces an annoying creaking noise. Odometer: 1,500 miles

 
Charles:
Given the fact that you are driving a second year (2006) model, these problems are very surprising. Such problems are usually caught and corrected in first six months of new model production.
 
Has anyone else experienced these problems on the 500? Or are these isolated to Charles car?
#10 of 182
Re: Ford Five Hundred Vibration [vrm] by barnstormer64
Jun 01, 2006 (12:24 pm)
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Replying to: vrm (Jun 01, 2006 10:19 am)

Has anyone else experienced these problems on the 500? Or are these isolated to Charles car?
 
I haven't seen any issues like that on my 500 or Freestyle. Both at around 10,000 miles, and 1+ years of ownership (both 2005 models).

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