Thread: loose lifter
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Old 03-17-2013, 09:32 PM
MACKEYAUTOREPAIR MACKEYAUTOREPAIR is offline
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Join Date: Mar 2013
Location: IOWA
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Vehicle: 1999 DODOGE RAM2500
Trim Level: LARAMIE SLT
Color: BLUE
Engine: 1998-2001 360ci (5.9L) Magnum V8 245hp(standard), 250hp(Sport package)
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OK, here's your options. Either the cam lobe is wiped, the lifter collapsed, the spring has totally given up, or the valve is stuck open. I doubt the lobe is wiped, you should have noticed that beforehand, the noise is pretty awful, and you would have a noticeable miss. i have never heard of a spring giving up like that, and if it did, you would be able to fiddle around with it and remove the keeper, then the valve will fall into the cylinder. A valve stuck open is possible, however, I am not 100% sure on the 5.9, but I had a V6 in a Dakota once come in with a broken timing chain, and all the valves & pushrods bent when it broke. I believe the Magnums are interference, so the piston will have hit the valve. I would bet on a collapsed lifter, they are roller, but hydraulic, and if it's lost it's ability to hold pressure, there you go. I'm very curious as to what you find.
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