trash in carb or muffler stopping up.
If you have an engine that idles at 6000 rpms, you need to have it checked - immediately. Around 750 rpms would be normal.
My car idles really high and wont go down and it will stall if I push on the gas!!
600 to 1000 revolutions per minute (RPMs) is the typical average for idle.
4000 rpms maybe more
Check timing. idle could also be set too low (rpms) so vibration is increased.
lower rpms use less gas higher rpms have more power
Have vehicle scanned to determine the problem
it was a bad ignition rotor
1987 ford f150 5.0 starts at 1500 rpms, then idles down to 700 rpms.truck idles low when put into gear and also stall when i stop from time to time.any help will be greatly appreciated.
Try changing your pcv valve. if that dont work it could be your mass air flow senscer or throtle pasistion senscer
major vacuum leak?
what is the cc on a stihl fs 76