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.
2012 Toyota Matrix FWD L4-1.8L (2ZR-FE)FACTORY OEM SERVICE PROCEDURE
Connecting Rod, Engine
PISTON SUB-ASSEMBLY WITH CONNECTING ROD
Tighten the connecting rod cap bolts in 2 progressive steps.
Step 1
Using SST, install and alternately tighten the bolts of the connecting rod cap in several steps.
Torque 20 Nm (204 kgf-cm, 15 ft-lbf)
Step 2
Mark the front of the connecting rod cap bolts with paint.
Further tighten the cap bolts an additional 90° as shown in the illustration.
Connecting Rod Side Clearance, Out-of-Round and Diameter
Tighten the connecting rod cap bolts in 2 progressive steps.
Step 1
Using SST, install and alternately tighten the bolts of the connecting rod cap in several steps.
Torque 20 Nm (204 kgf-cm, 15 ft-lbf)
Step 2
Mark the front of the connecting rod cap bolts with paint.
Further tighten the cap bolts an additional 90° as shown in the illustration.
Connecting Rod Side Clearance, Out-of-Round and Diameter
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:
- • 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.