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Doohickie -> RE: Hyundai Warranty (4/12/2006 10:43:30 PM)
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There is a Hyundai TSB that *some* aftermarket fuel filters can cause knock. The reason is that there is a bypass valve built into the filter so that if the filter media cannot pass through enough oil, the bypass valve opens to prevent oil starvation. Fram is one of the filters that does not have a compatible bypass valve. I believe the filter Fram has that fits a Honda will also fit the Elantra filter mounting. But due to these problems, Fram has DELISTED their Hyundai Elantra applications (i.e., they do NOT sell filter for Elantras). I haven't checked if the same is true for Accents. The TSB in question is 05-20-002, issued in July, 2005, titled "USE OF AFTERMARKET ENGINE OIL FILTERS CAUSING ENGINE KNOCKING NOISE", with an applicability of "ALL MODELS". Here is the text of the TSB:quote:
DESCRIPTION: Some vehicles may experience an engine knock noise with the use of an aftermarket oil filter. Aftermarket oil filters may use different materials, construction and specifications than genuine Hyundai oil filters, which may lead to pressure variations within the engine, thus contributing to an engine knocking noise. VEHICLES AFFECTED: All Models REPAIR PROCEDURE: Perform an oil change on the vehicle and replace the aftermarket oil filter with a genuine Hyundai oil filter. WARRANTY INFORMATION: Normal warranty procedures apply. This is not a warranty repair. At my local dealer, an OEM filter costs $6. Sure you can get something cheaper at Pep Boys, but in the long run, I'm not gonna bet my warranty on it. In this thread on another forum, someone actually cut open an OEM filter and an aftermarket filter and compared them, and the OEM filter is clearly better, with more than three times the filter media area. Also on that board, there have been a few people who had engines replaced under warranty, and a few who weren't covered under warranty because there was a Fram filter on the car when it was taken in for the warranty repair. In general, Fram is a good company, but at least in the case of the Elantra, the filter that fits does NOT meet Hyundai specs and, like I said, Fram does not list a filter for the Elantra. As for the original question, if you did your maintenance at 32k and 62k, I can't see that as a problem. If your timing belt had broken at 61k, though, you woulda been outta luck.
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