We found the following complaints for DUNLOP SP-4 (Unknown)
Read complaints for DUNLOP SP-4 (Unknown)
While driving in my car one day i intended to shift into 3rd gear, but it only made a grinding noise.i can only assume since the noise persists even with rev matching that its a syncro/cone problem.i try to shift during the proper rpm area, and sometimes it will shift without a problem other times it grinds.i have no idea why.it had approximately 45,000 miles on it then, now around 70,000, still has the issue.
While driving in my car one day i intended to shift into 3rd gear, but it only made a grinding noise.i can only assume since the noise persists even with rev matching that its a syncro/cone problem.i try to shift during the proper rpm area, and sometimes it will shift without a problem other times it grinds.i have no idea why.it had approximately 45,000 miles on it then, now around 70,000, still has the issue.
So far there is no failure of my dunlop sp-40 tires other than poor tread wear.at 17,000 miles i was told i needed new tires.the dunlop tires are supposed to have a 60,000 mile life.toyota is not any help as of this date.i also e-mailed dunlop my complaints and got no response from them.i was told they were just cheap tires.i know for a fact that my tires have been rotated at least twice and possibly a third time.i really don't feel that the wear is from poor maintenance.i am a stay at home mother who drives very little.if someone will check into this, i believe there have been numerous complaints both to toyota and dunlop regarding the wear of these tires on the sienna minivans!!
The tires are constantly going out off balance - car and/or tire dealers state the the defect is not covered by warranty( dot number: tire size: 2056516 hr )
Run flat tires needing replacement only after 2 years of owning the car.2 blowouts on the freeway due to no direct tire pressure sensor to alert us of the flat tire.the light only goes on after the tire is blown.the first blow out, i drove it directly to the dealer.total cost of replacement $350 for tire.i then had problems with the "indirect" tire sensor light coming on.i called the dealer back, he told me to ignore the light because the cold outside was causing it to go on.i drove it back anyway, they checked the tire pressure, put some more air in and sent me home with my sensor light still lit.i took it back to the dealer a few weeks later, they said it was a leaky valve.they replaced the valve, filled the tire with air and sent me home.less than 5 days later, another blowout on the freeway.i drove it to the nearest tire store.they could not do the repair because the tire would ruin their machine."it's harder to break down" and take off.i was sent to another tire store.they were able to remove the tire and replace them with regular tires.now, i don't have run flats anymore, but i don't have the excessive cost to keep replacing these expensive tires.the dealer told me at the time of the purchase that it was a "dream" for mom's transporting kids because i wouldn't have to change to a spare if the tire went flat.that the care was safer than safe.the manager of the service department also told me i was lucky that i got 40,000 miles out of them.both tires blew out on the freeway, i rolled the car in at 25 miles per hour, on the rim, with my kids in the car.i did it safely with my driving, not because of the run-flat tires.i will never purchase another car with run-flat tires.they didn't tell me how expensive they were to replace and that i would need to replace them so frequently.also that the tire sensor is indirect.i didn't even know when the tires were just getting low, only when completely flat.
While driving in my car one day i intended to shift into 3rd gear, but it only made a grinding noise.i can only assume since the noise persists even with rev matching that its a syncro/cone problem.i try to shift during the proper rpm area, and sometimes it will shift without a problem other times it grinds.i have no idea why.it had approximately 45,000 miles on it then, now around 70,000, still has the issue.
While driving in my car one day i intended to shift into 3rd gear, but it only made a grinding noise.i can only assume since the noise persists even with rev matching that its a syncro/cone problem.i try to shift during the proper rpm area, and sometimes it will shift without a problem other times it grinds.i have no idea why.it had approximately 45,000 miles on it then, now around 70,000, still has the issue.
All four tires tread had cracked. Ondealer has replacedtireswith new tires.
Toyota has been placing dunlop sp40's on their sienna van's at least from 2000 to 2003.they are extremely unsafe and are prone to premature wear (less than half of their 80,000 kilometers.please refer to 1010tires.com under reviews for that tire (very numerous).my tires were worn over 75% at 33000kms.even prior to wear they are extremely unreliable esp. In the snow and rain---i had spun out on a straight stretch of snow covered highway several times entering oncoming traffic the winter previous.the sienna has a high safety rating but it is in fact an unsafe/hazardous vehicle by virtue of the tires placed upon it.i believe toyota is aware of the problem but will not admit any responsibility.through much argument, goodyear has replaced the tires with new ones giving me 50% off (i shouldn't have to pay anything because i have been placed in a position of purchasing new tires when i should not have to for the next 3-4 years).toyota refuses to compensate me the other 50% and will not admit to this unsafe (but no doubt profitable) relationship that it has with dunlop/goodyear.there is no doubt in my mind that these tires are substandard if not defective and i am upset that dunlop/goodyear and toyota had placed my family in danger because of their arrangement.i had bought the van because my wife and i had a new baby and had trusted the safety rating boasted by toyota (unaware that the safety was compromised by the tires that they choose to utilize on the van).
While driving in my car one day i intended to shift into 3rd gear, but it only made a grinding noise.i can only assume since the noise persists even with rev matching that its a syncro/cone problem.i try to shift during the proper rpm area, and sometimes it will shift without a problem other times it grinds.i have no idea why.it had approximately 45,000 miles on it then, now around 70,000, still has the issue.
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