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 MANUALSCHEVROLET1999LUMINA V6-3.8L VIN KREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON, ENGINE
1999 Chevrolet Lumina V6-3.8L VIN K
Piston, Engine
1999 Chevrolet Lumina V6-3.8L VIN KSECTION Piston, Engine
| Used Piston Clearance (41 mm from Top of Piston) | 0.0020-0.0036 | |
| New Piston Clearance (41 mm from Top of Piston) | 0.0004-0.0020 | |
| Piston Ring Groove Depth | Top Compression | 0. 158-0.163 |
| 2nd Compression | 0.0166-0.171 | |
| Oil Control | 0.150-0.155 |
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.