It is normal for a GMC Sierra to idle fast when it is first started. It will idle at around 1500 rpm until the engine warms up. To get it to slow the rpm's sooner, a person can tap the throttle once and it should slow down.
It maintains engine idle rpm when the throttle is closed.
Normal is 20-30 psi at idle. 40-60 at 3000 rpm. Minimum at idle is 10psiNormal is 20-30 psi at idle. 40-60 at 3000 rpm. Minimum at idle is 10psi
10psi is minimum. Normal would be 30 at idle, 60 at 3000 rpm.10psi is minimum. Normal would be 30 at idle, 60 at 3000 rpm.
750 rpm
It is controled by the computer snd should be about 600 rpm. The idle speed solonoid controls it with a signal from the computer. GoodluckJoe It should be 750 RPM after the engine is warmed to normal operating temp.
About 600 RPM
Idle speed is normal.
700 to 750 rpm is normal. if the engine stalls, you may have to replace the IAC (Idle Air Control) Motor. they get stuck.
Depending on vehicle and engine approx. 20- 50 lbs. at hot idle (700 rpm)
No. It should be idling around 650 warmed up. Look for a possible vacuum leak.
The IAC valve is just that...The Idle Air Control Valve. It is responsible for keeping the idle at set parameters. And yes, it can make the engine idle at high RPM.