I have a '90 GT with 44k original miles. Since I have owned the car I noticed that when the car has been at running temp for 15+ minutes there is an obvious tapping type noise that appears to be coming from the left bank (driver side). You can hear like a slight valve tap but there appears to be a more solid type of tapping comes from deeper down - my guess a collapsed lifter. I know that our cars have roller lifters but are they hydraulic rollers? What is the possibility that one has collapsed or is sticking? I have had the car for about 2k miles or 6 months. The oil is semi synthetic 10w-40 and I changed it when I first got the car. I am thinking about changing it to full synthetic to see if that helps.
What is the chance the noise can just be a loose rocker bolt? I don't run the car hard and it does not appear to have had a rough life. I got the car and it was completely stock with the exception of the spark plugs and tires. I have gone through the entire car and everything that I replaced had to be done because of age and nothing else.
Thanks in advance.
What is the chance the noise can just be a loose rocker bolt? I don't run the car hard and it does not appear to have had a rough life. I got the car and it was completely stock with the exception of the spark plugs and tires. I have gone through the entire car and everything that I replaced had to be done because of age and nothing else.
Thanks in advance.