**This problem may be covered under warranty. Ask your Toyota dealer.
Toyota Sienna engine problems

engine problem

3.0

definitely annoying

Typical Repair Cost:

no data

Average Mileage:

38,000 miles

Number of complaints:

2 complaints

Most common solutions:

  1. flush the oil with products available in stores (1 reports)
  2. toyota rebuilt part of the engine (1 reports)

Helpful Websites About 1999 Toyota Sienna excessive oil sludge build up

A D V E R T I S E M E N T S

problem #2

2000Jul 10

Sienna LS

  • Automatic transmission
  • 37,000 miles

Toyota rebuilt part of the engine. It's been fine since..it's now at 110000 miles

L M.

Atlanta, GA, USA

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problem #1

2007Mar 30

(reported on)

Sienna

  • Automatic transmission
  • 39,000 miles

Engine has developed excessive oil sludge and consumes oil in excess.
When replacing missing oil the exhaust shows a white smoke for some time.

manolin

Caguas, PR, Puerto Rico

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