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Explorer, Sport Trac, Mountaineer & Aviator 1991-1994, 1995-2001, 2002-2005, 2006-2010 Ford Explorer

91 Explorer 4.0

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Old Aug 15, 2004 | 05:30 AM
  #1  
xtron007's Avatar
xtron007
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91 Explorer 4.0

My engine lifters started making more noise than I trusted, so I had them replaced. I still have some clicking noise at lower RPM (under 1500).
What is the next "layer of moving metal" do I need to replace?
The engine is a 4.0 with about 170,000 miles.
Thx
 
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Old Sep 11, 2004 | 02:25 PM
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bayou sport's Avatar
bayou sport
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Have the oil pressure verified with a real guage (not the one in the truck)
The early explorers have problems with the pick up screen for the oil pump getting clogged and having oil starvation trouble.
 
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