Tune-Up Specifications

CAUTION: The following specifications are published from the latest information available. This data should only be used in the absence of a decal affixed in the engine compartment.


Engine, Liter/CID 3.0L/V6-181

Spark Plug Gap, Inch 0.041

Ignition Timing, °BTDC

Fig. C:

Firing Order, [02] shown
Man. Trans. 5
Auto. Trans. 5
Mark Location Damper

Curb Idle Speed, RPM
Man. Trans. 700
Auto. Trans. 700N

Fast Idle Speed, RPM
Man. Trans. [01]
Auto. Trans. [01]

Fuel Pump Pressure, psi [03] 38
Valve Lash [04]


BTDC: Before Top Dead Center.

[01] -- Controlled by idle speed control motor.
[02] -- Before removing wires from distributor cap, determine location of No.1 wire in cap, as distributor position may have been altered from that shown at the end of this chart.
[03] -- Disconnect fuel pump electrical connector at rear of fuel tank. Start engine & allow to operate until it stalls. Disconnect battery ground cable, then reconnect fuel pump electrical connector. Position shop towels around hose to tube connection, then disconnect high pressure hose at delivery tube side. Install suitable fuel pressure gauge, then connect battery to fuel pump drive terminal & check fuel pump pressure with pressure regulation vacuum hose connected.
[04] -- Valves are not adjustable.