Can you explain camshaft or follower problem do you think it could be internal or maybe can sensor or egr valve car is a cream puff wife drove it since new still show room inside and out almost 200 thousand miles all original. Just worried may need major engine work or replaced what's your feeling
This is on top of the engine, (cam and lets 'say' rockers) if this is the problem it can be repaired without much trouble, however all we can do is offer some possible causes, which could be wrong. We will know more after comp. test. Intake valve has to open for proper compression, got to have air to compress, may be the trouble and tapping noise due to follower problem.