How many RPMs at Idle ?

[TheMightyThor]

After my order with the thermostat and the #5 misfire ( see earlier thread )
I replaced the #5 Boot and all is well.. no codes, no misfires but I feel like the truck is idling too high... theres a vibration that wasnt there before both in gear when stopped and when in park.... its idling at 700 RPMs...

This was never the case before as far as having a vibration, its kind of like a pulsating vibration... any suggestions on what this could be and course of action ?

 

[01yellerCobra]

Is that 7000 or 700?

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[TheMightyThor]

is that 7000 or 700?

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700

 

[01yellerCobra]

When you were messing with the coil did you move some vacuum lines? Sounds like something got knocked loose.

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[splintrcel]

The tac doesnt even go up to 7000 lol. Mine idles at around 700 to 600 depending on the temperature and the idle just drop a bit if you put it in drive and hold the brake. Coil packs that are on their way out can get wonky depending on the humidity. Even though you dont get a code a COP can be on its way out.