Join Date: Sep 2009
frenchblue is offline
Re: Symptoms of bad valves?
The exact same thing I was thinking.
AT IDLE, there is a very slight valvetrain racket coming from the engine, but the most noticeable noise is a very audible pecking, like metal to metal, that seems to come from the lower part of the engine on the left side, which also throws a misfire code from time to time. This pecking doesnt get louder with engine speed, but does get faster.
WHILE DRIVING, the pecking isnt noticeable because of the distance from the noise, but if I drive close to a wall or building on that side, it can then easily be heard. The main noise while driving is excessive valvetrain noise. I dont know if its only because of the lifter/valve problem at idle, or if some of the other valves are messed up too, but it is very noticeable, especially when the engine is cold, but it doesnt go away when warm either. When driving at slow speeds, it almost sounds like an exhaust leak, to the point where I actually checked the exhaust manifold, but it seemed intact, plus the sound doesnt get louder with rpms.
I can assume I will probably be needing some valve work done before resolving this problem, but was just wondering if this could be the reason the engine lacks power, sometimes being weaker than the 2.2, then a few min. later, it will accelerate strongly, but most of the time will run somewhere in between? The last thing I wanna do is shell out a few franklins on the valves/lifters only to find they were not the source of the problem.