I have a 2006 tuscan with 27000 miles on clock.changed front tyres recently but they keep going down.went back to tyre shop & was told due to alloy paint coming off wheel, it is not allowing new tyre to sit properly on the wheel and is a common prob with this car. is this correct?

Hi, I think you referred this a couple of weeks ago?
I suggested you change the tyre to another rim. You appear to have done that and it has not worked, Can I ask whether the damage to the rim was caused with that particular tyre on it? If it suffered a sever impact damage it is entirely possible that the integrity of the tyre has been compromised. The vibration may be due to internal/invisible damage.
You have eliminated all other possibilities, this, as sherlock holmes would have said, must be the fact.
Well done!
Replace the tyre

you should be running 8 ply tyres on the vehicle to carry the maximum load as required by the regulator
The recommended tyre pressure will be on a decal attached to the drivers door ( probably on the door frame under the latch)
Having said all that I recommend 45 psi for the rear and 40 for the front
If you run any less ,the ride will be smoother but if you load the vehicle, the rear tyres are under inflated and prone to failure from overheating
tyres are manufactured to run at a certain pressure due to the construction of the case. Talk to a tyre shop as to the pressure you should be using for the tyres.

what you describe is a tyre problem, probably as you say belt separation
I would stay away from rotors at this point as they really will not give what you describe
you can try doing a tyre rotation and see if the problem goes from front to back
If it does then you will know that you need 2 new tyres
You can go to a tyre shop and have each wheel checked for a problem tyre on the balancer unit
if there is a case problem , it will not be able to be balanced easily
It is poor practice to run different brands of tyres as each tyre has its own handling characteristics and that will give you noise and control problems

take the car to a suspension specialist shop and have the rear wheels aligned first
have the suspension checked for worn mounts or bad springs
it is very important that the rear end is aligned before the front end
suspect that the suspension rubbers need replacing as it is over 6 years old
the tyre rotation is a myth perpetrated on drivers to sell tyres
when the tyre construction was cross-ply and not radials yes rotation then on cross-ply tyres could get the wear to even out but with radials once the wear is started then the tyre continually wears in that pattern regardless of which wheel it is on
even if you take that tyre of the car and put it on a trailer , it will still continue to wear in that pattern
tyres are no longer rotated but simply put front to back on the same side other wise the belts flex in a new direction in the tread and fail earlier that expected
besides that fact that tyre rotation will not allow you to monitor for suspension problems or wheel alignment problems and cost you 4 tyres at a time instead of two

i have just had my tyre on the front right changed due to puncture, and now i have a warning light - low tyre pressure which is very annoying! I went to the mechanic and he told me he needs to reset the computer system and it will go away! is this correct? i have my doubts now as he was the same mechanic who changed my tyre and may have interfered with the sensors in the car.
Please help :(

I would suspect deformed tyres ,they do go out of round with age and the sun which does wonderfull to tyres

how long ago were tyres fitted? if very recently take back to who fitted them

are you sure they didnt change fronts to rear so that you would have the safest tyres on the front???
From my experience,working for hyundai, you would be lucky to get 25/30k from a pair of fronts and about 50 from the rears......
also, as tyres are relatively cheap, why would they swap for a pair of old,worn tyres,dont make sense...... (its easier to go to a parking lot at night and steal all four from a new car........)

16 is the rim size and most modern ones will take 215 tyre. Of more concern is the PCD (which dictates how holes line up) would suggest a trip to a breakers and get 4 from any VW Passat (or other) of similar age

Your best bet is to break down and go to a good repair shop for a 4 wheel alignment.Most shops give a flat rate on alignments which means you will pay one price regardless of time it takes.Most modern cars have alignment adlustments on the rear suspension as well as front.Also certain vehicles are very sensitive to tire rotations.Make sure you don't exceed manufactures mile recomendations on rotations.Having it done at the proper times can in some cases double tire life.