Thread: Idle RPMs
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Old 08-10-2005, 01:18 PM
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Re: Idle RPMs

MIkeman28, after doing a little browsing on the 'Automotive Repair Reference Center' website at the library, I found a document containing the gasoline engine tune-up specs for K1500 Suburbans from 1996-2000. Among spark plug gaps and fuel pump pressures, there are the idle speed rpm values.

Here they are:

(VIN W) 4.3L - 600 rpm
(VIN V) 4.8L - Idle speed is maintained by the PCM
(VIN M) 5.0L - 650 rpm
(VIN T) 5.3L - Idle speed is maintained by the PCM
(VIN R) 5.7L - 660 rpm
(VIN U) 6.0L - Idle speed is maintained by the PCM
(VIN J) 7.4L - 750 rpm


..so I guess mine runs like it should and yours is a little too high at 850
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1997 CHEVY SUBURBAN LT
5.7L Gasoline, K1500 4x4
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