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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC1993VALUE VAN 5.7 K, _NA_, GAS/CNGREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROLS - SPECIFICATIONSIGNITION SYSTEMSPARK PLUGS
1993 GMC Value Van 5.7 K, _NA_, Gas/CNG
Spark Plugs
1993 GMC Value Van 5.7 K, _NA_, Gas/CNGSECTION Spark Plugs
SPARK PLUG TYPE
| Application | AC | |
|---|---|---|
| 2.5L (VIN A) | R43CTS6 | |
| 2.8L (VIN R) | R43TSK | |
| 3.1L (VIN D) | R43TS | |
| 3.8L (VIN L) | 41-600 | |
| 4.3L | ||
| VIN W & Z (Except Turbo) | CR43TS | |
| VIN Z (Turbo) | CR42TS | |
| 5.0L (VIN H), 5.7L (VIN K) & 7.4L (VIN N) | CR43TS | |
SPARK PLUG SPECIFICATIONS
| Application | Gap: In. (mm) | Torque: Ft. Lbs. (N.m) | |
|---|---|---|---|
| 2.5L (VIN A) | .060 (1.52) | 11 (15) | |
| 2.8L (VIN R) | .045 (1.14) | 11 (15) | |
| 3.1L (VIN D) | .045 (1.14) | 20 (27) | |
| 3.8L (VIN L) | .060 (1.52) | 20 (27) | |
| 4.3L | |||
| VIN W & Z (Except Turbo) | .045 (1.14) | 11 (15) | |
| VIN Z (Turbo) | .045 (1.14) | 11 (15) | |
| 5.0L (VIN H) | .035 (0.89) | 11 (15) | |
| 5.7L (VIN K) | .035 (0.89) | 11 (15) | |
| 7.4L (VIN N) | .035 (0.89) | 11 (15) | |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.