shortly befor I left for deployment I decided to service my '92 vert. this included spark plugs,rotor,cap,oil change, and a valve adj. soon afterwards the car devoloped a rough idle and a knock in the rpm range of 3k-3.7k. a week later I left for deployment.... since returning two weeks ago I have put 1,000 mi on the car with the same symptoms...could the knock be in the head..? or the bottom end :-( maybe its a elect. problem causing a lean mixture,therefore producing a knock?? anyone with a similar problem???
Announcement
Collapse
No announcement yet.
mid rpm range knock????
Collapse
X
-
the noise occurs even when not under load. I did discover while cleaning the engine bay today that the little square black cover on my MAF has become unglued. possible contamination to the potentiometer inside??? could cause a false airflow signal?? and in turn dick-up the mixture. my spark plugs were carboned upon removal. and after only about 2,000 miles on them.... I will change the fuel filter though. since it will need to be done anyway and I will have the car in the air tomorrow to replace my clutch slave cyl.
Comment
-
not unplugged, just the little cover fell off. and I did discover a pretty nasty crack in my intake boot.......which most definately caused a jacked-up idle. being that the crack was right in front of my idle control valve.... does any one know where to purchase an aluminum intake boot replacement????????
Comment
Comment