RPMs

[atomicpulse]

I have a 98 S10 4.3L V6. When the engine is completely warmed up and in neutral, what should it be idling at?

[atomicpulse]

any answers?

[sector95]

Originally Posted by atomicpulse

I have a 98 S10 4.3L V6. When the engine is completely warmed up and in neutral, what should it be idling at?

There should be an emissions decal located somewhere on the fan shroud, radiator core support or possibly on the underside of the hood near the latch. On that decal will be timing info, spark plug type and gap and idle speed.

mike

[BlazerLT]

650rpms +- 25-50rpms

[atomicpulse]

I would say mine idles at 525 to 550.. that normal?

[BlazerLT]

Nope, too low.

Should be between 600-700

Check for a dirty air filter or a plugged fuel filter.

[atomicpulse]

air filter was cleaned, fuel filter new. It runs perfect and its always idle at this rpm forever so i was just curious

[BlazerLT]

Meh, could be the MAF but do you have any bolt ons installed.

[movin2stereo]

Mine is at 600.

[atomicpulse]

Alright on my throttle body there is a screw I can turn that will allow it more or less gas... any idea if i should turn the screw or not??

[BlazerLT]

Don't start playng with things when you have no idea what they do.

[atomicpulse]

well its pretty simple to see what it does, you turn it one way and when the truck is in idle the rpms go down, turn it the other and the rpms go up

[BlazerLT]

do you know what it is adjusting?

[atomicpulse]

the position of the blade in the throttle body when the truck is at idle, it moves the part that the cable from the gas peddel connents to, thats the best way i can explain it to you