99 Expy Knock
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Joined: Feb 2004
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From: Toano
99 Expy Knock
Hello...I am new here and need some help...I have a '99 Expedition XLT 4.6L engine. There is some kind of knock coming from under the truck...it is not real loud when inside (can't really hear it with radio on). It does it when either just sitting at a light, parked (running of course) or driving down the road. It just suddenly started doing it. I have checked to make sure nothing was loose...it sounds like it is coming from the exhaust, but not really 100% sure it is coming from there....
Anyone have any thoughts about what it is or what I can check? I am at a loss!!!
Thanks!
Anyone have any thoughts about what it is or what I can check? I am at a loss!!!
Thanks!
