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Idle rpms


Jhurkmans
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They'll idle higher when cold. Mine idles up 1500ish when it's cold, then drops once it warms up (FSM says 750 RPM +/- 50). The EF&EC section of the service manual does have a procedure for adjusting the idle speed, but it assumes that the truck is running properly to begin with--don't adjust the IACV to try and mask some other issue. What's yours doing?

 

If you don't have the service manual, the '90 manual from cardiagn is probably as close as you'll find for your '92. Nico has a '94/'95 manual that is mostly the same, but I keep finding out about weird little things that changed around '93.

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