buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Engine Controls - Driveability Repair Reference Chart|Page 2832 > < Engine Controls - Driveability Repair Reference Chart|Page 2830
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HIGH SPEED RELAY

Two (2) Speed Cooling Fan

This change results in quieter fan operation at low speed and increased cooling at high speeds. Fan speeds are controlled by the ECM VIA inputs from
temperature sensor, A/C switch, vehicle speed sensor.
EGR Solenoid and EGR Valve Asm.

EGR solenoid and EGR valve assembly have been changed. EGR solenoid assembly controls only the EGR valve.  The previous models controlled EGR
and EFE.

Carburetor Specifications

Lean

M/C

Idle

Carburetor

Float

Stop

Paddle

Mixture

Number

Setting

Screw

Travel

Needle

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