Lately notice these symptoms:
(1) In addition to the erratic behavior of the needle 2 to 3 inches of mercury vacuum gauge.
(2) I've noticed an engine idle unstable and as indicated above with small explosions in the exhaust.
(3) By the way, I checked with a role in the escape, and it sucks.
(4) noise in the valves, as click click.
IAC valve is clean.
Throttle body cleaned.
Still the problem persists.
You may need an adjustment of valve clearance?
should do a compression test on the cylinders?
These symptoms may lead to think there's any burnt valve?
Finally, these symptoms lead to knock / detonation or pinging of the engine?
I would appreciate any suggestions as possible.
Friday, April 20th, 2012 AT 7:06 PM