Quote:
Originally Posted by g300d
Ok, so the 4.6 now has the diesel-like idle.
Research indicates possible causes as VANOS or timing chain tensioners?
Any other possible causes, and any tips to confirm which it is?
It has 43k miles.
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More likely to be VANOS but while you are in there to do the repair you might as well do the tensioners also. $4-5K at the shop or just parts and your time if you are a DIYer.