1989 Engine Tune-Up Specifications
|Spark Plug Gap (Inch)||Ignition Timing||Fuel Pressure (psi) face="Arial" size="1">(2)||
Idle Speed face="Arial" size="1">(3)
Firing Order: 1-8-4-3-6-5-7-2
NOTE: Under hood sticker figures must be used if
different from this chart.
(1) AC Delco noted or
(2) Key on, engine off.
(3) Or Minimum Air; RPM w/ engine
in Neutral (MT) or Park (AT) warmed to operating temperature; follow proper procedures in
*Manual Transmission not publically available with B2L/L98
5.7L Engine, but tune-up specifications noted for this setup regardless.
MT=Manual Transmission; AT=Automatic Transmission; psi=Pounds
per Square Inch
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