Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!





Tires, tires, tires

1225226228230231244

Comments

  • stickguystickguy Posts: 14,458
    Looked up the Kelly's on line, and didn't find anything to be impressed about. Certainly not enough to be worth ~$50 on a set of 4!

    frm making the rounds, looks like the best deal (dropping down to an H from a V) is either the Avid H4S of Potenza Grid G019.

    not surprising, the same exact pair I had to choose from back in April when I put tires onthe Accord (same size and everything).

    Probably will go with the Avids that I put on the accord. They certainly have worked well, and from the tirerack test, the Yokos have better wet traction than the Girds (always a plus, especially when the kid is driving!)

    2013 Acura RDX (wife's), 2007 Volvo S40 (daughter stole that one), and 2000 Acura TL (formerly son's, now mine again)

  • Hello,

    I have a 2003 car with 19,000 miles on it. The car still has the original tires on it. It seems like one of the tires has a slow air leak in it. This one tire leaks down from the recommended 29 PSI to 25 PSI in a day and to 20 PSI in a week. However, it doesn't seem to get fully deflated even after months (the lowest was like 13 PSI after many months). I've got two questions:

    1. What might be a possible cause of a tire air leak that doesn't seem to fully deflate the tire even after many months? If the tire had a puncture, wouldn't it eventually become fully deflated and visibly flat?

    2. Is it possible that permanent, unrepairable damage has been done to that tire from driving the car for 6 years and 19,000 miles with the tire severely underinflated (below 20 PSI)? It is possible this air leak was present when I bought the car new. I wasn't very diligent about checking the tire pressure, so it took me a while to figure out that there might be a slow air leak. The tire looked normal to me.

    Thank you in advance for your response!
  • ruking1ruking1 Posts: 14,864
    Slow leaks can be caused by any number of things. The best thing to do is to bring it into a tire shop, so they can troubleshoot/isolate/correct. As part of the process they can inspect your external and probably more importantly, your internal tire structure.
  • obyoneobyone Posts: 8,065
    Tires being 6 years old should be replaced. That should solve the slow leak and any concern over damage caused by running an under inflated tire.
  • ruking1ruking1 Posts: 14,864
    It can be truly pristine or a disaster waiting for a place to happen. Inspection by a professional is at the very least, a second opinion.
  • Thank you for the responses ruking1 and obyone. I will take it to a tire shop and see what they think of the problem.
  • marsha7marsha7 Posts: 3,673
    is driving me nuts...I have 2004 Crown Vic, OEM tires were Goodyear Eagle LS and the car rode smooth as glass for 48,000 miles...I then had the tires replaced with new LS tires, and we went thru about 7 sets of tires because none of them could be balanced...the car would ALWAYS vibrate between 50-70 mph...we finally settled on Eagle RS-A tires, which vibrated the least, but still never ran smooth...

    At 98,000 miles, time for new tires (car now has 128,000 miles)...again we went thru 3 sets of Goodyears, always bad vibration (steering wheel shakes and my seat vibrates) between 50-70 mph...so we changed to Michelins, still the same problem...tires have been road-force balanced, and balanced on three different computer balance machines...all machines balance it to "00", but on the car they still vibrate...

    All 3 machine technicians have told me that my wheels are NOT bent, yet no one can balance these tires...does anyone have any thoughts of this???

    There is a place that advertises they can balance wheels ON the car, I thought of trying them, but how can they balance rear wheels on the car at high speed since the axles connect to the differential???

    This is driving me nuts since 2006, and it is so odd that the factory tires/wheels were perfectly balanced, and no one has done it right since then...and these are all tire specialty shops!!!

    What would my next step be from here???
  • kiawahkiawah Posts: 3,666
    Have you considered that the problem might not be the tires?

    - Loose body part (like air dam under the car), that begins flapping in the wind as the speed picks up.
    - Shocks (or Struts, don't know the Vic suspension) bad
    - Driveshaft/axles out of balance
    - Is the alignment in spec, or a bad ball joint, causing premature wear of the tire throwing it off balance?
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,188
    >What would my next step be from here???

    Several thoughts. Which Michelins did you put on? And they were Road Force balanced? The Michelins should have been nearly perfect if the Road Force tech knew what he was doing...

    Did it come on with the new tires and the old ones were great and smooth?

    Has it been aligned to the Nines--right on the optimum setting. Some cars are sensitive to slight variation from the optimum alignment. The old tires may have worn and become flex-adapted to the slight misalignment. I am thinking of GM H-bodies with the sensitivity to alignment and out-of-round; I really haven't heard it discussed re Fords.

    I see two approaches. One is to take it to a Ford dealer with a long-time (old and/or knowledgeable) alignment guy. Let him check every rubber bushing, link, and other part for wear. Two would be to find an independent shop guy who understands the physics of everything about a car and he might find it.

    Is there any chance it's a brake rotor slightly out-of-round bumping the caliper and causing a vibration? Or a caliper dragging slightly.

    A comment that's my opinion about replacing a popular new car tire with a like tire. I was told the better tires go to the new car plants and the slightly less than perfect tires go to the service dealers for replacements. I had a Century that came new with a particular brand of tire which I won't name and it was as good or better driving than the Michelins I had on the other Century. When I replaced the tire at a dealer, the tires were out-of-round/out-of-balance all the way to Charleston (SC) and back. When I went to the tire store, he didn't even offer to put on another set of same national brand tire; he recalled I'd priced Michelins along with the national brand and he put on Michelins at no extra charge. That was when I heard that replacements sometimes weren't as good as the new car version.
  • ruking1ruking1 Posts: 14,864
    I think a lot of it has to do with how FORD builds their cars specifically alignment and suspension sub systems. It would seem that since yours is a Crown Victoria and local police departments push modified Crown Vics, the municipality mechanics that service police Crown Victorias would be an awesome resource. The worse the shop supervisor could say is no, so I would ask him and ask to speak with the mechanics and or him/her.
  • kiawahkiawah Posts: 3,666
    Just thought of something.

    Take your spare tire out, and start rotating it thru the 4 different positions....and see if the symptoms change and/or vibration goes away.
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,188
    Does that car have lubed suspension joints or are they all sealed. I'm wondering about wear due to lack of lube.

    The spare is a good idea. It probably has a full-sized spare.
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,188
    What would be great is if a shop or someone you know has a full set of wheels that are on a car equivalent to yours that roll okay and you could temporarily switch them with your wheels to test them on your car. That would eliminate the current wheels or would incriminate them. Check your email on your profile.
  • I'm new in town, so if this is a stupid question, be kind. I have a Japanese mini truck (honda acty) that needs 12 inch tires. I want street tires, not off-road tires. These are available for about $40 a tire which is OK, but I see tons of 12 inch trailer tires for a lot less. When I purchased "trailer tires" for my car dolly, they told me the only difference was much stiffer sidewalls. So my question is, "Could I use the trailer tires on the little truck?" -- would anyone mount and balance them for me if they'd fit? Who is an expert on this?
  • kiawahkiawah Posts: 3,666
    Be careful of the rim width. Every trailer 12" trailer tire I've had is a very narrow tire, that mounts on a relatively narrow rim.

    I used to own an old Honda many years ago with 12" tires, and they were substantially wider than a trailer tire, which would have a wider rim.

    The other problem will be tire heat and speed. You don't pull a trailer at 70 or 80 mph, which are speeds that you could easily hit in a vehicle.

    Just stick with a vehicle tire, this is not worth getting killed over with some blowout and wreck in the middle of the night somewhere.

    Check tirerack.com
  • marsha7marsha7 Posts: 3,673
    Alignment was checked and was perfect...at 50K miles, with the OEM tires smooth as glass, alignment was perfect, was not even tweaked...

    The vibration problem literally started with the first set of replacement tires...suspension components have been checked, altho I found it hard to believe that some suspension component went bad in the 60 minutes it was on the lift while changing the OEM tires...

    I had thought of driveshaft imbalance, but the same question applies...why would the drive shaft become unbalanced in the 60 minutes it sat on the lift removing OEM tires...it didn't fall off the lift, I was there...same thought with the disc rotors, we could not find a "clean" spot where a balance weight may have fallen or been knocked off...

    The shop that I am now at is the shop that maintains the county police cars...all Crown Vics...

    Shocks seem to be OK, and, again, same question...why would (or how could) shocks go bad in the 60 minutes the car was on the lift with the first tire change???

    I am NOT trying to be obstinate here, but I think we covered all of your thoughts, which I appreciate...

    The one thought that keeps coming back to me is this...despite being told from 3 shops that the wheels are not bent, that keeps coming back to me as one main variable from the first tire change...that maybe the tech bent the wheel, since he did work on all 4 of them, and maybe bent just slightly, but enough to cause this "impossible to balance" problem...I just hate to spend $400 on wheels and find out I am wrong...

    Any followup thoughts???

    Is there some machine that can balance a driveshaft, or are they possibly not too expensive and can be replaced cheaper than trying 4 new wheels???...maybe I can "borrow" one from a police car???

    Oh, U-joints were checked, too...same question always comes up...why would something in perfect balance for 48000 miles suddenly become impossible to balance after coming off a lift???...that is why I tend to think that a wheel was bent, but that is why I am asking those of you who know more than I do...

    Again, thanks for your thoughts...
  • stickguystickguy Posts: 14,458
    after reading all the back and forth, I agree that the bent wheel theory is liekly.

    But, wouldn't this show up when they tried to balance? I apparently have a slightly bent wheel on my odyssey (according to the guy at NTB that last balanced them), but he could tell on the machine, and had a heck of a time (and used a lot of wieght) to dial it in. But, once he got it, no problem on the car.

    I like the suggestion of trying different, known to be good wheels. If it is the shop that does the CV fleet, maybe they could swing this at some point? Won't need long.

    The other option of course if you had a full sze spare is use that. Or, find 1 lone wheel, and swap it on 1 at a time to see when the problem goes away.

    finally, yes a suspension peiece can go bad in those 60 minutes, if they soemhow screwed up something (maybe bent something?) But again, seems like it would show up at other speeds, or with alignment issues.

    The real solution? buy a new car.

    2013 Acura RDX (wife's), 2007 Volvo S40 (daughter stole that one), and 2000 Acura TL (formerly son's, now mine again)

  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,188
    Bent rim: the Road Force balancer would have shown that there was some bend in the rim. What you really need is to switch wheels with a Vic that has wheels and tires that are rolling round. Maybe a wrecking yard could be a source for 4 wheels off a wrecked car cheap? Maybe you could come up with two good rims and wheels and put them on the back and test, and then move them to the front and test.

    A driveshaft is rotating several times while a wheel rotates once; the frequency of the vibration would be different.

    Without driving the car to "feel" the vibration under different situations, it's almost impossible to judge from where it's coming. One thing is you can run the rear wheels with the car up on a lift. If it were driveshaft or something about the physical wheels and rear axle, you might get a feel of the vibration; the difference is the suspension components are under weight so the bushings are in their usual positions and loads. The front wheels individually can be spun by a spin balancer on the car...
  • capriracercapriracer Somewhere in the USPosts: 795
    Insanity is doing the same thing over and over again and expecting different results. If it was me, I would have started looking for a different answer after the second set of tires.

    One possibility: Vented brake rotors are sometimes balanced by applying a sprung coil of metal into one of the vents. These rust right along with the rest of the rotor - and can fall out. That would explain why the vibration suddenly appeared and nothing else seems to fix it.

    Unfortunately, a lot of time has come and gone, and the evidence that there used to be one of these coils in the rotor will be gone as well.

    Also unfortunately, most shops are not equipped to solve vibrations that aren't tire and wheel related. Once they road force and balance the assembly, they can't do much more - which is why they tend to do that procedure over and over again - Insane!!

    Finding the source of a vibration takes some sophisticated equipment - and about the only place you are going to find that equipment is with a vehicle manufacturer. If you can find a Ford Service Engineer who is not only knowledgeable, but is also willing to work with you (and you might have to pay a bunch for the service!), this guy ought to be able to track down where the vibration is coming from.

    Given how bad the economy is right now, I would bet that it will be difficult to get one of these guys to spend much time trying to solve a problem on an older car. Kinda hard to justify to management!

    Nevertheless, good luck.
  • stickguystickguy Posts: 14,458
    I have been poking around looking for a deal good enough to make me break down and replace the tires on my 3.2TL (once has a sidewall bubble from an impact break.)

    Although I finally found a tire store guy that said don't bother to replace now if I was just doing local driving! Ask enough people until you get the answer you want I guess...

    Anyway, I can get a nice sale this week on BFG advantage TA (V rated). Looks nice enough, but not too many review on Tirerack.

    Anyone have opinions or experience? General use, with wet driving feel important. Will have to be prepared for some snow duty (hopefully nothing to deep).

    the other option at the moment was a Goodyear Eagle GT.

    2013 Acura RDX (wife's), 2007 Volvo S40 (daughter stole that one), and 2000 Acura TL (formerly son's, now mine again)

  • prasadpprasadp Posts: 14
    Can is install a different size than a recommended size for my car?

    my car needs P185/60R14 I found some set of tires in junk yard but of different size with is P175/60R14.

    my car is 1997 Mitsubishi mirage LS coupe

    please advise.
  • stickguystickguy Posts: 14,458
    they should fit. But in general, junkyard tires are a risky way to save a few $$. For one thing, you have no idea what condition they are in internally. You should also check the manufacture date to see how old they are (tires do have a shelf life).

    Your size (14") are generlaly pretty darned cheap anyway. And since you still have to pay to have them mounted, how much are you really going to save (plus you get tires with a ful allotment of tread!)

    Just did a quick check, but justtires (a chain in NJ) has nice DUnlop SP sport A/S tires for $48.77 in that size.

    2013 Acura RDX (wife's), 2007 Volvo S40 (daughter stole that one), and 2000 Acura TL (formerly son's, now mine again)

  • stickguystickguy Posts: 14,458
    actually, the issue with fitting will be the width of th erim. Tires usually fit a range of widths, but it is possible the 175 might be too narrow if the 185 is the minimum width for your rims.

    2013 Acura RDX (wife's), 2007 Volvo S40 (daughter stole that one), and 2000 Acura TL (formerly son's, now mine again)

  • oregonboyoregonboy Posts: 1,653
    I would think that the load rating might be a deal breaker. Some places might not be willing to mount tires with less than the car manufacturer's recommended load capacity.

    If you can possibly afford it, either new tires, or near-new, factory "take-offs" would be a much safer choice.
  • prasadpprasadp Posts: 14
    Thank you stickguy.
  • kkovakkkovak Posts: 16
    I need to replace the tires on my 2003 Avalon which has ~60K miles on it.

    Driving is split 50/50 highway and city with the highway usually not over 80-85 mph.

    Can anyone recommend a couple of good alternatives?

    Thanks
    Ken
  • rcarr7rcarr7 Posts: 19
    Funny, but what I would recommend for the Avalon, happens to fit 2 entirely different cars and sizes (VW TDI's)

    1. Michelin Primacy MXV4
    2. General Altimax HP

    If price is an issue, item #2 is $43. cheaper per tire or -$172. per set of 4.
  • mz6greyghostmz6greyghost Posts: 1,230
    Any winter driving involved? Or is it all just dry and wet conditions WITHOUT snow/ice?
  • kkovakkkovak Posts: 16
    Yes, snow and ice would be present here in Eastern Pennsylvania. We don't force ourselves to drive much in snow and ice, just if caught out in it.

    THanks
    Ken
  • woodywwwoodyww Posts: 1,797
    What are the current tires on your Avalon? Were you happy with them? Have you checked tirerack.com for tires for your car? Great resource.

    Also, *We don't force ourselves to drive much in snow and ice, just if caught out in it.* It only takes a few times per winter for snow and ice performance to matter......
Sign In or Register to comment.