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Explorer ST Engine Knock when cold

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sparr357

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#1
Has anyone experienced an engine knock on the explorer st.
 

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kkriskal

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#2
You should ideally not experience any knocking. Do you mean like tappet noise or literal knocking
 

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sparr357

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It’s definitely knocking and as it warms up the knock goes away.
 

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mwinn

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#4
I'm not an alarmist but I had a simular thing with a first year Volvo S80. Deep thumping knock much like a rod knock. Every time I took it to the dealer it had gone away. Told them to keep the car until they figured it out and only try under a cold start. They found it was piston slap. They said about 2000 engines were built with excessive piston clearance. Got a brand new engine at 30k miles. Problem solved. Don't ignore it! Funny thing, my S 80 was built the first year Ford owned Volvo.
 

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sparr357

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The dealer is all booked. I have an appointment on 1-8-21
 

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sparr357

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Well after waiting a month for a appointment and then waiting 2 months for a loaner, the dealer cannot find the problem. I put in for a buyback 2 weeks ago and it was approved. Truck has been in the dealer since 3-9-21 and is still there.
 

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