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Mercury
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1983
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Zephyr Base, 3.3 X
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Repair and Diagnosis
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Engine Performance
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System
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EGR System
EGR System
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Description
Operation
EGR Valves
Integral Backpressure Transducer Valve
Ported EGR Valve
Electronic Sonic EGR Valve
EGR Load Control (Wot) Valve
EGR Vacuum Amplifier
Temperature Vacuum Switch
Trouble Shooting
Engine Stalls On Deceleration
Rough Idle, Stalling, Surge Rough Running, Hesitation & Poor Part Throttle Performance
Part Throttle Engine Detonation
Very Low Power At Full Throttle
Engine Hard To Start, No Start, Or Starts & Stalls
Poor Fuel Economy
Testing
EGR Valves
Integral Backpressure Transducer Valves
Ported EGR Valve
Electronic Sonic EGR Valve
Vacuum Amplifier