There is no adjustment for the idle. It is controlled by the computer. If it is not idling properly, you probably have a bad Idle Air Control ("IAC Motor") or a bad Throttle position Sensor ("TPS Sensor") If it is turning the check engine light on, you should check to see what code it is setting in the computer.
That should be throttle body fuel injected.
Yes , the 3.0 liter " Vulcan " V6 engine ( and its flex fuel version ) and the 3.0 liter " Duratec " DOHC , V6 engine are fuel injected
On a 1998 Mercury Mountaineer : Yes , both the 4.0 liter , SOHC , V6 engine and the 5.0 liter V8 engine are fuel injected
What grade of oil is best in your 5.3 liter Chevy engine?"
The map sensor for a Chevy 5.3 liter engine is on the top of the intake. It is at the back of the engine.
No. They are different
The 7.2 liter is a Duramax diesel.
YES
Yes.
how much horse power does a stock 4.8 liter vortex Chevy engine have
no
The Chevy 5.7 liter is 350 cubic inches