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.
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HOMESERVICE MANUALSBUICK1988SKYHAWK BASE, 4D WAGON, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEADJUSTMENTTUNE-UP - V6SPARK PLUGS
1988 Buick Skyhawk Base, 4D Wagon, Automatic
Spark Plugs
1988 Buick Skyhawk Base, 4D Wagon, AutomaticSECTION Spark Plugs
SPARK PLUG TYPE
| Application | AC No. |
|---|---|
| 2.8L MFI (VIN W) | R43LTSE |
| 2.8L MFI (VIN S, & 9) | R42CTS or R42TS |
| 3.0L MFI (VIN L) | R44LTS |
| 3.8L SFI (VIN 3) | R44LTS |
| 3.8L SFI Turbo (VIN 7) | R44TS or R44TSH |
| 3.8L "3800" (VIN C) | R44LTS6 |
| 4.3L TBI (VIN Z) | R45TS |
SPARK PLUG INSTALLATION
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|---|---|
| 2.8L MFI | .045 (1.14) | 15 (20) |
| 3.0L MFI | .045 (1.14) | 15 (20) |
| 3.8L SFI | .045 (1.14) | 15 (20) |
| 3.8L SFI Turbo | .035 (.90) | 22 (30) |
| 3.8L "3800" | .060 (1.52) | 15 (20) |
| 4.3L TBI | .035 (.90) | 15 (20) |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.