5.0 engine knock - F150online Forums


5.0 engine knock

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  #1  
Old 11-13-2011, 01:22 PM
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5.0 engine knock

Anyone had problems with the engine knocking? I just got my 2011 F150 2 weeks ago it has 390 miles on it. Once everything's up to temp (engine, trans) in gear at an idle you can hear a slight knock. If you give it a little gas the knock becomes very pronounced. It is not noticeable at highway speeds. trucks at the dealer. waiting on a diagnosis.
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Old 11-13-2011, 02:05 PM
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I think you are the first one to post a knock. Mine has 9,200 on it and still quiet. keep us posted.
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Old 11-13-2011, 02:11 PM
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Originally Posted by Bluejay View Post
I think you are the first one to post a knock. Mine has 9,200 on it and still quiet. keep us posted.
^^This at 8100 miles.

i did get a check engine light the other day, had it turned off and it hasn't come back thankfully.
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Old 11-13-2011, 02:32 PM
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I read TSB on a drive shaft knock. Hope that's all it is. To me it sounds like a rod knocking. We'll see what the dealer comes up with.
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Old 11-13-2011, 02:43 PM
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^^This at 8100 miles.

i did get a check engine light the other day, had it turned off and it hasn't come back thankfully.
You didn't read out the codes?
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Old 11-13-2011, 04:42 PM
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You didn't read out the codes?
i did. it's in my "im back" thread. 2 codes that were the same for emissions sensor
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Old 11-13-2011, 05:25 PM
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its definitely under warranty..
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Old 05-23-2012, 11:59 AM
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Recently started to knock and I have only 5000 miles on it. Took it in and they said there's a service bulletin for the timing chain that is needs a tension pin changed. They said it can drive great for the life of the truck without effecting performance. It's just more of an annoying problem especially since its a brand new truck
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Old 05-23-2012, 12:09 PM
glc
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Are they going to replace it under warranty?
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