Posted by: thaishin | September 23, 2009

A Slow Leak and a Recall

The Slow Leak:

For the past few weeks, the low tire pressure warning light came on in my 2009 Toyota Corolla for  a couple of times. After I top up the tire pressure, the warning light will come on  after a few days.  A family friend of ours who is a mechanic inspected the tires for us and found that a screw was embedded in our left rear tire. He told us that there is probably a slow leak in tire pressure.  We asked how it can be repaired. He said it could be repaired by a plug or a patch. A plug will take around half an hour and may come off after continuous and constant driving through difficult terrain. We asked for a quote from a repair shop and they quoted us 12 bucks. A patch will take an hour and is more durable. We asked for  a quote from another repair shop and they say it cost 30 bucks. And they say its a plug patch. So, we went for the plug patch. They took off the wheel from the car and removed the tire from the rim. They took out the screw, make a through hole of the puncture, grind the inside, put some glue on it, and apply a circular patch from the inside and seal the puncture.

The recall:

A few weeks back, I read an article that reported that there was a recall on certain 2009-2010 Corolla and Corolla Matrix relating to the brake system vacuum port.

I just received the recall notice on Monday and made an appointment with the nearest Toyota dealer to have it fixed.

The condition: If the vehicle is operated in extremely low temperatures, there is a possibility that condensed moisture from a positive crankcase ventilation (PCV) port may seep into the brake system vacuum port and freeze. The port is located inside the intake manifold and provides vacuum assist for the brakes. Should this condition continue, ice may slowly accumulate at the port and in the worst case, ultimately plug the port. As a result, power assist to the brakes would gradually decrease (eventually to zero), and the increased pedal pressure required could lead to greater vehicle stopping distances, which may increase the risk of a crash. The Toyota dealer will install a newly designed intake air connector which will relocate the brake system vacuum port at no charge to the vehicle owners.

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