Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1968 BuickFACTORY OEM SERVICE PROCEDURE
Buick: 1968
- Electra
- GS 350
- GS 400
- LeSabre
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD THM400
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Not Available Trans
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD THM400
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Not Available Trans
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, 2D Coupe, 7.0L Eng, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 2D Coupe, 7.0L Eng, Automatic Trans, Trans Mfr CD THM400
- Base, 2D Coupe, 7.0L Eng, Not Available Trans
- Base, 2D Coupe, 7.0L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 7.0L Eng, Standard Trans, Trans Mfr CD SM326
- Base, 4D Hardtop, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 4D Hardtop, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD THM400
- Base, 4D Hardtop, 5.7L Eng, Eng CD PO, Not Available Trans
- Base, 4D Hardtop, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Hardtop, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, 4D Hardtop, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 4D Hardtop, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD THM400
- Base, 4D Hardtop, 5.7L Eng, Eng CD PP, Not Available Trans
- Base, 4D Hardtop, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Hardtop, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, 4D Hardtop, 7.0L Eng, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 4D Hardtop, 7.0L Eng, Automatic Trans, Trans Mfr CD THM400
- Base, 4D Hardtop, 7.0L Eng, Not Available Trans
- Base, 4D Hardtop, 7.0L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Hardtop, 7.0L Eng, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD THM400
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Not Available Trans
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD THM400
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Not Available Trans
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 7.0L Eng, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 4D Sedan, 7.0L Eng, Automatic Trans, Trans Mfr CD THM400
- Base, 4D Sedan, 7.0L Eng, Not Available Trans
- Base, 4D Sedan, 7.0L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 7.0L Eng, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, Not Available, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD THM400
- Base, Not Available, 5.7L Eng, Eng CD PO, Not Available Trans
- Base, Not Available, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, Not Available, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD THM400
- Base, Not Available, 5.7L Eng, Eng CD PP, Not Available Trans
- Base, Not Available, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 7.0L Eng, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, Not Available, 7.0L Eng, Automatic Trans, Trans Mfr CD THM400
- Base, Not Available, 7.0L Eng, Not Available Trans
- Base, Not Available, 7.0L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 7.0L Eng, Standard Trans, Trans Mfr CD SM326
- Custom, 2D Convertible, 5.7L Eng, Eng CD PO
- Custom, 2D Convertible, 5.7L Eng, Eng CD PP
- Custom, 2D Convertible, 7.0L Eng
- Custom, 2D Coupe, 5.7L Eng, Eng CD PO
- Custom, 2D Coupe, 5.7L Eng, Eng CD PP
- Custom, 2D Coupe, 7.0L Eng
- Custom, 4D Hardtop, 5.7L Eng, Eng CD PO
- Custom, 4D Hardtop, 5.7L Eng, Eng CD PP
- Custom, 4D Hardtop, 7.0L Eng
- Custom, 4D Sedan, 5.7L Eng, Eng CD PO
- Custom, 4D Sedan, 5.7L Eng, Eng CD PP
- Custom, 4D Sedan, 7.0L Eng
- Custom, Not Available, 5.7L Eng, Eng CD PO
- Custom, Not Available, 5.7L Eng, Eng CD PP
- Custom, Not Available, 7.0L Eng
- Riviera
- Skylark
- Base, 2D Coupe, 4.1L Eng, Eng CD PS, Automatic Trans
- Base, 2D Coupe, 4.1L Eng, Eng CD PS, Not Available Trans
- Base, 2D Coupe, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD 160T
- Base, 2D Coupe, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD SM326
- Base, 2D Coupe, 4.1L Eng, _NA_, Automatic Trans
- Base, 2D Coupe, 4.1L Eng, _NA_, Not Available Trans
- Base, 2D Coupe, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD 160T
- Base, 2D Coupe, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD SM326
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Automatic Trans
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Not Available Trans
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD 160T
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Automatic Trans
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Not Available Trans
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD 160T
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, 2D Coupe, 6.6L Eng, Automatic Trans
- Base, 2D Coupe, 6.6L Eng, Not Available Trans
- Base, 2D Coupe, 6.6L Eng, Standard Trans, Trans Mfr CD 160T
- Base, 2D Coupe, 6.6L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, 2D Coupe, 6.6L Eng, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 4.1L Eng, Eng CD PS, Automatic Trans
- Base, 4D Sedan, 4.1L Eng, Eng CD PS, Not Available Trans
- Base, 4D Sedan, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD 160T
- Base, 4D Sedan, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 4.1L Eng, _NA_, Automatic Trans
- Base, 4D Sedan, 4.1L Eng, _NA_, Not Available Trans
- Base, 4D Sedan, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD 160T
- Base, 4D Sedan, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Automatic Trans
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Not Available Trans
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD 160T
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Automatic Trans
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Not Available Trans
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD 160T
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, 4D Sedan, 6.6L Eng, Automatic Trans
- Base, 4D Sedan, 6.6L Eng, Not Available Trans
- Base, 4D Sedan, 6.6L Eng, Standard Trans, Trans Mfr CD 160T
- Base, 4D Sedan, 6.6L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, 4D Sedan, 6.6L Eng, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 4.1L Eng, Eng CD PS, Automatic Trans
- Base, Not Available, 4.1L Eng, Eng CD PS, Not Available Trans
- Base, Not Available, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD 160T
- Base, Not Available, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 4.1L Eng, _NA_, Automatic Trans
- Base, Not Available, 4.1L Eng, _NA_, Not Available Trans
- Base, Not Available, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD 160T
- Base, Not Available, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 5.7L Eng, Eng CD PO, Automatic Trans
- Base, Not Available, 5.7L Eng, Eng CD PO, Not Available Trans
- Base, Not Available, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD 160T
- Base, Not Available, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 5.7L Eng, Eng CD PP, Automatic Trans
- Base, Not Available, 5.7L Eng, Eng CD PP, Not Available Trans
- Base, Not Available, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD 160T
- Base, Not Available, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, Not Available, 6.6L Eng, Automatic Trans
- Base, Not Available, 6.6L Eng, Not Available Trans
- Base, Not Available, 6.6L Eng, Standard Trans, Trans Mfr CD 160T
- Base, Not Available, 6.6L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, Not Available, 6.6L Eng, Standard Trans, Trans Mfr CD SM326
- Custom, 2D Convertible, 4.1L Eng, Eng CD PS
- Custom, 2D Convertible, 4.1L Eng, _NA_
- Custom, 2D Convertible, 5.7L Eng, Eng CD PO
- Custom, 2D Convertible, 5.7L Eng, Eng CD PP
- Custom, 2D Convertible, 6.6L Eng
- Custom, 2D Coupe, 4.1L Eng, Eng CD PS
- Custom, 2D Coupe, 4.1L Eng, _NA_
- Custom, 2D Coupe, 5.7L Eng, Eng CD PO
- Custom, 2D Coupe, 5.7L Eng, Eng CD PP
- Custom, 2D Coupe, 6.6L Eng
- Custom, 4D Hardtop, 4.1L Eng, Eng CD PS
- Custom, 4D Hardtop, 4.1L Eng, _NA_
- Custom, 4D Hardtop, 5.7L Eng, Eng CD PO
- Custom, 4D Hardtop, 5.7L Eng, Eng CD PP
- Custom, 4D Hardtop, 6.6L Eng
- Custom, 4D Sedan, 4.1L Eng, Eng CD PS
- Custom, 4D Sedan, 4.1L Eng, _NA_
- Custom, 4D Sedan, 5.7L Eng, Eng CD PO
- Custom, 4D Sedan, 5.7L Eng, Eng CD PP
- Custom, 4D Sedan, 6.6L Eng
- Custom, Not Available, 4.1L Eng, Eng CD PS
- Custom, Not Available, 4.1L Eng, _NA_
- Custom, Not Available, 5.7L Eng, Eng CD PO
- Custom, Not Available, 5.7L Eng, Eng CD PP
- Custom, Not Available, 6.6L Eng
- Special
- 4.1L Eng, Eng CD PS, Automatic Trans
- 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD 160T
- 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD Muncie
- 4.1L Eng, Eng CD PS, Standard Trans, Trans Mfr CD SM326
- 4.1L Eng, _NA_, Automatic Trans
- 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD 160T
- 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD Muncie
- 4.1L Eng, _NA_, Standard Trans, Trans Mfr CD SM326
- 5.7L Eng, Eng CD PO, Automatic Trans
- 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD 160T
- 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- 5.7L Eng, Eng CD PP, Automatic Trans
- 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD 160T
- 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Sportwagon
- Base, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD THM350
- Base, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD THM350C
- Base, 5.7L Eng, Eng CD PO, Automatic Trans, Trans Mfr CD THM400
- Base, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD 160T
- Base, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD Muncie
- Base, 5.7L Eng, Eng CD PO, Standard Trans, Trans Mfr CD SM326
- Base, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD THM350
- Base, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD THM350C
- Base, 5.7L Eng, Eng CD PP, Automatic Trans, Trans Mfr CD THM400
- Base, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD 160T
- Base, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD Muncie
- Base, 5.7L Eng, Eng CD PP, Standard Trans, Trans Mfr CD SM326
- Base, 6.6L Eng, Automatic Trans, Trans Mfr CD Super Turbine 300
- Base, 6.6L Eng, Automatic Trans, Trans Mfr CD THM350
- Base, 6.6L Eng, Automatic Trans, Trans Mfr CD THM350C
- Base, 6.6L Eng, Automatic Trans, Trans Mfr CD THM400
- Base, 6.6L Eng, Standard Trans, Trans Mfr CD 160T
- Base, 6.6L Eng, Standard Trans, Trans Mfr CD Muncie
- Base, 6.6L Eng, Standard Trans, Trans Mfr CD SM326
- Custom, 5.7L Eng, Eng CD PO
- Custom, 5.7L Eng, Eng CD PP
- Custom, 6.6L Eng
- Wildcat
Database: LEMON
LEMON manuals were retrieved in late 2025. For very old vehicles, they are not very detailed.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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