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Stock 4.6l throttle adjustment screw?

922 Views 4 Replies 3 Participants Last post by  BassBoost91
Anyone know where on the stock throttle Plenum for 96-98 throttle/idle adjustment screw is? I've checked all around it.
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There is times when the idle will be real high at about 2000rpm most of the time its about 800rpm. Just curious to start fiddling with something. Thanks for the input!
I've cleaned both maf and iac. I got maf spotless as far the iac it was caked with carbon. Let it idle yesterday but earlier it was erratic with some surging. As far as the power surging idk I have a PA performance alternator. How do I go about checking for vacuum leaks I'm pretty sure hose' are the thin red ones. Thanks
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