LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Buick
>>
1993
>>
Roadmaster Base
>>
Repair and Diagnosis
>>
Engine Performance
>>
Engine Controls - Adjustments - V8
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Engine Controls - Adjustments - V8
Expand All (for easy ctrl-f)
Collapse All
Engine Mechanical
Valve Clearance
Ignition Timing
Notes
Ignition Timing - 4.9L
Ignition Timing - 5.7L (VIN P)
Ignition Timing - 5.0L (VIN E) & 5.7L (VIN 7) Except CADILLAC
Ignition Timing - 5.7L (VIN 7) CADILLAC
Idle Speed & Mixture
Minimum Idle - DEVILLE/Sixty-Special
Minimum Idle (ELDORADO & SEVILLE)
Maximum ISC Extension - DEVILLE/Sixty-Special
Maximum ISC Extension - ELDORADO & SEVILLE
EBTCM Relearn Procedure - 5.7L (VIN 7) FLEETWOOD
IAC Valve Reset (5.0L VIN E & 5.7L VIN P & 7 Except "D" Body)
Idle Mixture
Throttle Position (TP) Sensor
Notes
Throttle Position Sensor - 4.9L