Engine Performance problem
2000 Toyota Sienna 6 cyl Front Wheel Drive Automatic 103000 miles
I've noticed that almost every time I take a long drive for 1.5-2 hours or around 100 miles and stop the car to rest around 15-30 minutes, when I come back to start the engine there will be some grey smoke comes out around 3-5 seconds from the exhaust pipe and disappear then. By the way, my car runs smooth and it was already tuned up at 95000 miles. Water pump and timing belt had been changed already. Moreover, two of O2 censors has been changed but the one after the CAT has not been changed yet. Is there any problem with the engine? Why the grey smoke comes out? How much do I have to pay for fixing this problem?
Thursday, June 11th, 2009 AT 9:40 AM