I own a Corolla sedan and I just bought two new Hankook tyres for the front of the car. I notice that every couple of days it keeps deflating slowly and I always have to keep pumping up the tyres again. The mechanic suggested I pump to 35 PSI which I always have yet for some reason they keep deflating.. I've also thought it may have something to do with a 'heavy' front engine thing … Has anyone else had this problem? could it be something to do with just driving over ruff surfaces too much?? I'm baffled.
Is It Normal for Tyres to Keep Deflating Every Few Days?
LYRICALRAVER on 29/06/2016 - 16:00
Comments
check for any nails.. but don't pull them out if you don't have a repair kit.
Advice #1 - You have a slow leak either due to a puncture, broken valve, loose tyre bead or cracked rims. Take it back to your place of purchase.
Advice #2 - Change mechanicsAdvice #4:
Advice #4 is incorrect.
😁
Advice #5: When advice #4 is incorrect refer back to Advice #3.
Advice #6: Change your Advisers
Advice #666 - Sell your soul to me and I will fix the tyres for you. I'm an experienced mechanic and have many 'satisfied customers'.
Tyres are not necessarily changed by mechanics. Just FYI.
The maximum acceptable is 1 PSI loss per week , you've got cheap valves installed by your mechanic, also he shouldn't suggest any pressure other than what the vehicle manufacturer recommended, there should be a sticker for the recommended values on the fuel lid or driver door frame, over inflating tyres may compensate for the loss of pressure but it will cause premature wear to the vehicle suspension and higher skid risk on wet roads
also he shouldn't suggest any pressure other than what the vehicle manufacturer recommended, there should be a sticker for the recommended values on the fuel lid or driver door frame, over inflating tyres may compensate for the loss of pressure but it will cause premature wear to the vehicle suspension and higher skid risk on wet roads
The tyre pressures on the placard are for comfort. For better handling, tyre life, fuel economy and safety you should run a higher pressure.
Fuel economy may be due to the lower rolling resistance, but higher pressure leads to less ground contact area which leads to less grip which leads to less safety and worse handling, safety is cars manufacturers' highest priority over comfort and economy that's why they chose those values.
Fuel economy may be due to the lower rolling resistance, but higher pressure leads to less ground contact area which leads to less grip which leads to less safety and worse handling, safety is cars manufacturers' highest priority over comfort and economy that's why they chose those values.
Higher tyre pressure does not lead to less grip until you excessively overinflate the tyres. Comfort is a priority for the manufacturer over handling hence why the pressures are set so low. Adding 10-20% to the base tyre pressures can result in improved handling, braking, tyre wear and fuel consumption.
If you're going to offer safety advice you should at least take the time to understand what you're talking about.
Comfort is a priority for the manufacturer over handling
If you're going to offer safety advice you should at least take the time to understand what you're talking about.If you understand what you're talking about then you're saying manufacturers are sacrificing passengers safety for better ride, does that sound valid?!
If you understand what you're talking about then you're saying manufacturers are sacrificing passengers safety for better ride, does that sound valid?
The manufacturers choose a tyre pressure that is a compromise between safety, handling, comfort and noise. It's well known to anyone who knows anything about driving (<10% of those with drivers licenses in Australia) that increasing the tyre pressure has many benefits.
earlier:
Comfort is a priority for the manufacturer over handling hence why the pressures are set so low
Now:
The manufacturers choose a tyre pressure that is a compromise between safety, handling, comfort and noise
Good luck
increasing the tyre pressure has many benefits.
Safety is not one of them
Safety is not one of them
You've already shown zero knowledge of cars and tyres so don't bother making more absurd claims.
You've already shown zero knowledge of cars and tyres so don't bother making more absurd claims.
Advising others to stick to manufacturers recommended values for their safety are absurd claims and yours are not?
Although this is only from your point of view but I still respect it and you need to realize that whatever my knowledge is it's much more than yours@shraouf:
The manufacturer recommends tyre pressures based on a tyre model they've used on the vehicle.They recommend the same pressure even though the stock tyres differ.
Stock tyres can differ significantly based on production batch and location of sales.
In some cars, you can opt (value added) for run-flats which have a different contact patch.
Operating temperatures also affect tyre pressure. Longer running time = hotter temperature. Therefore, cold temperature can be a poor indicator of average running temperature.
Ideal temperature is determined by achieving maximum contact patch to the ground. This depends on the weight of the vehicle.
In wet conditions, increasing pressure to exegete mid tyre contact patch helps disperse water laterally, hence increasing grip.
TLDR- shraouf is wrong. Maverick-au is right.
Doubt it
Nail or screw in your tire, check it.
Check for external damage.
Check for valve leak (where you pump air, put a water filled balloon to see if air is leaking. You'll see bubbles)
If it is neither, you have a few possibilities (from likely to unlikely).
1. Damage to sidewall when stretching the tyre over the rims. Dangerous to drive on these as they can literally pop.
2. Buckled rims. Has to be very buckled for it to leak air but some people have very poor awareness of their vehicle.
3. Inherent production/storage flaw. Not likely these days as safety standards are pretty tight, tyres are silicone sealed for storage and transport, and fairly quick turnover for most average tyres.Up to 3 years would be expected I think.
New tyres and fitting should be warranted. Maybe see if Hankook supplier will put pressure on fitter.
Thanks for all your advices guys, the other day I braked really hard when it was raining at the traffic lights and tyres felt funny…
go back to the tyre dealer and get them to check.
Just say somethings wrong, the tyres need puping up every few days.Something major is wrong, maybe you ran over a few nails and have punctures?
Not normal. Take it back to where they were fitted.