Thread: IMS on a 99?
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Old 06-26-2017, 06:59 PM   #3
jborchel
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Join Date: Dec 2016
Location: San Diego Area
Posts: 16
Quote:
Originally Posted by 78F350 View Post
I'd say just search the forum, but that actually may end up being more confusing.
The 2.5L engines (1997-1999) all have dual row bearings. They have a low failure rate, but have been known to fail. I have heard 1% to 2%.
2000 and 2001 2.7L and 3.2L engines may have dual row or single row bearings. There is a list of engine serial numbers, but it has been shown to be incorrect. The only way to be sure it to remove the transmission and look.
2002 thru 2004 models have single row bearings. Single row bearings have been reported to fail at 8% to 10%.
2005 may have a single row, or a non-replaceable oversized bearing. The oversized bearings have a low failure rate. You can read that they fail more often on cars that are frequently tracked.
2009 and later do not have an IMS bearing.

That may all be lies, but that's what I have read. :dance:
Thanks for that info. I did do a search and read a handful of threads. None of them offered the info you just gave me so I decided to take the easy way.
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