1990 BMW 525 V6 Two Wheel Drive Automatic 197000 miles
hi, I am very thankful for your good website. I could find lots of my questions answered. But this problem I have is kinda strange. I am pretty new with bmw cars. I recently have the valves clearance adjusted, and spark plugs, distributor and rotor replaced. In the morning, when I first started the car while engine is cold, I notice that the valve tapping noise is very distinct, and the car accelerates not as fast. But, when the car is warmed up after 20 mins of driving, the acceleration is great and tapping noise is hardly noticeable. Why is this so? Would changing the oil pump help? What can we do to improve the cold starting conditions?
Tuesday, December 4th, 2007 AT 1:41 PM