Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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fairly significant
Typical Repair Cost:
No data
Average Mileage:
149,500 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2004 Kia Sedona engine problems

engine problem

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2004 Kia Sedona Owner Comments

problem #1

Aug 142015

Sedona LX 3.5L V6

  • Automatic transmission
  • 149,500 miles


At least one of the lifters in the front bank is seriously failed. The knocking sound at idle is so loud, the source can be pinpointed quite easily. This Sedona has been meticulously maintained with very high quality fully synthetic oil changed every 5000 miles or less. Also, it has had two timing belts at the specified intervals with new water pumps, pully/rollers and tensioners. The majority of it's life has been city driving, but still there should be no reason for a lifter failure of this magnitude. Since I don't like this van very much, I likely won't fix the issue, but to fix it, I would swap heads with re-mans and new head gaskets, new timing components (again) and crank and cam seals.

- , Cedar Rapids, IA, USA

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