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.DBβ LIVE
HOMESERVICE MANUALSTOYOTA2001HIGHLANDER 2WD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIRGENERAL REPAIR INSTRUCTIONS AND NOTES
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)
General Repair Instructions and Notes
2001 Toyota Highlander 2WD L4-2.4L (2AZ-FE)SECTION General Repair Instructions and Notes
PRECAUTION
1. BASIC REPAIR HINT

a. PRECOATED PARTS
1) Precoated parts are bolts, nuts, etc. that are coated with a seal lock adhesive at the factory.
2) If a precoated part is retightened, loosened or caused to move in any way, it must be recoated with the specified adhesive.
3) When reusing precoated parts, clean off the old adhesive and dry with compressed air. Then apply the specified seal lock adhesive to the bolt, nut or threads.
NOTICE: Do the torque checking with the lower limit value of the torque tolerance.
4) Depending on the seal lock agent to apply, there may be a case where it is necessary to leave it for a specified time until it hardens.
b. GASKETS
When necessary, use a sealer on gaskets to prevent leaks.
c. BOLTS, NUTS AND SCREWS
Carefully observe all specifications for bolt tightening torques. Always use a torque wrench.




d. TORQUE WHEN USING EXTENSION TOOL WITH TORQUE WRENCH
1) In case of tightening by extending the entire length of the torque wrench combined with SST or tool, if you tighten until the reading of the torque wrench reached the specified torque value, the actual torque becomes excessive.
2) In this text, only the specified torque is described. In case of using SST or extension tool, find the reading of the torque wrench by the formula.
3) Formula T'=T x L2/(L1 + L2)
1. BASIC REPAIR HINT
a. PRECOATED PARTS
1) Precoated parts are bolts, nuts, etc. that are coated with a seal lock adhesive at the factory.
2) If a precoated part is retightened, loosened or caused to move in any way, it must be recoated with the specified adhesive.
3) When reusing precoated parts, clean off the old adhesive and dry with compressed air. Then apply the specified seal lock adhesive to the bolt, nut or threads.
NOTICE: Do the torque checking with the lower limit value of the torque tolerance.
4) Depending on the seal lock agent to apply, there may be a case where it is necessary to leave it for a specified time until it hardens.
b. GASKETS
When necessary, use a sealer on gaskets to prevent leaks.
c. BOLTS, NUTS AND SCREWS
Carefully observe all specifications for bolt tightening torques. Always use a torque wrench.
d. TORQUE WHEN USING EXTENSION TOOL WITH TORQUE WRENCH
1) In case of tightening by extending the entire length of the torque wrench combined with SST or tool, if you tighten until the reading of the torque wrench reached the specified torque value, the actual torque becomes excessive.
2) In this text, only the specified torque is described. In case of using SST or extension tool, find the reading of the torque wrench by the formula.
3) Formula T'=T x L2/(L1 + L2)
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.