Join Date: Dec 2000
Location: Southern Wisconsin
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Re: 2.5 \"Clacking\" under load
It's not a GM -- it's the AMC 2.5. Basically a 4.0L with 2 cyls lopped off.
Lifter tick is common to the engines. If it's loud, you might want to pull it apart. How many miles you got? If it's over 200, might be worth a rebuild or change. My 2.5 made it 365K before needing the rebuild. I had finally spun a main, but she did have a good rattle to her. Nothing too loud on any cylinder, but a generally a constant 4 cylinders ticking noise.