NHTSA — Engine And Engine Cooling: Engine Problems

CarComplaints.com Seal Of

4.8

definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
22,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Toyota Sienna engine problems

engine problem

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2003 Toyota Sienna Owner Comments

problem #1

Mar 252005

Sienna 6-cyl

  • Automatic transmission
  • 22,000 miles

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

We own a 2003 Toyota Sienna that we bought new in January 2003. During March 2005, noticed knocking sound coming from engine during cold startups. Took to Toyota and after 4 days of various remedies which didn't work (catalytic converter replacement, oil change, engine cleaning), they chalked it up to a "known problem" with "piston slap" and said it can't be fixed, that "they all do it", and returned van to us.

- Hampton, VA, USA

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