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.
Compression pressure
new: 25 to 31 bar (362.5 to 449.5 psi)
Wear limit 19 bar (275.5 psi)
Permissible difference between all cylinders:
- 5 bar (72.5 psi)
- Install glow plugs using 3220 flexible wrench. Tightening torque: 15 Nm (11 ft lb)
- Check Diagnostic Trouble Code (DTC) memory:NOTE: DTCs will be stored because the Diesel injection pump harness connector has been disconnected. Check and erase the DTC memory.
- Read readiness code using scan tool.
If the DTC memory was erased or the engine control module is subject to low voltage with ignition ON, reset readiness code again.
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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.