CarFix Answers

2008–2016 Toyota Highlander: Coolant leak or whine (3.5L V6 water pump)

Likely causes, ranked

  1. Water pump seal leak or bearing noise (pump replaced)$450–$1,300Shop

Real-owner fix counts will appear here as reports come in.

Rough cost: $450–$1,300DIY or shop: See DIY or shop section

Parts to check

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Symptom: Pink coolant crust near the passenger-side front of the engine, a dropping coolant level, or a whine/grind from the pump.

Likely causes

  1. Water pump. Toyota Nation and BITOG owners report 2GR-FE pump leaks. The engine uses a timing chain, so the pump is replaced on its own.

Rough cost range

RepairReported
Pump replacementAbout $450–$900 independent; dealer quotes up to about $1,300

DIY or shop?

Shop, or DIY-capable.

Useful steps

  1. Look for crust at the pump weep hole.
  2. Use an OEM/Aisin pump.
  3. Refill with Toyota coolant.

Vehicle focus: 2008–2016 Toyota Highlander.

Safety / mechanic note

Overheating can damage the engine. Verify with a mechanic.

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Recalls & service bulletins

No recalls or service bulletins are listed for this page yet.

NHTSA complaints: 16 keyword-matched complaints (of 2,051 unique complaints filed under NHTSA model names HIGHLANDER, HIGHLANDER HV, HIGHLANDER HYBRID, 2008–2016; NHTSA complaints API by model year, queried 2026-10-15).

Always check your VIN for open recalls at nhtsa.gov/recalls.

Sources

What actually fixed it?

Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.

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