Question about 1990 Ford F250
I would probaly agree, these are very reliable engines.Most of the time a bad wrist pin wull be noisy at load and higher rpms, not at idle in gear.Cracked flywheel is possible , loose converter bolts is unlikely since ford uses a crimped bolt.These engines sometimes will build up carbon on top of the piston and usually running a can of SEA FOAM through the intake will take care of it.The carbon can cause a slight knock and may sound like a wrist pin or rod bearing.Good luck!
Posted on Mar 13, 2011
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Posted on Jan 02, 2017
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