2003 Expedition
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Joined: Jan 2009
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From: Chesapeake, Va.
My '00 Navigator has the 5.4 32 valve engine and runs strong, premium fuel is not needed and I just got back from a short 450 mile trip towing a 7,000 lb. trailer with no problems. Cruising at 70 mph with cruise control on and averaged abour 14.5 mpg on the lie-o-meter.
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Joined: May 2007
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difference between Expy 5.4 and Nav 5.4
My '00 Navigator has the 5.4 32 valve engine and runs strong, premium fuel is not needed and I just got back from a short 450 mile trip towing a 7,000 lb. trailer with no problems. Cruising at 70 mph with cruise control on and averaged abour 14.5 mpg on the lie-o-meter.
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Joined: Apr 2006
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2004 EB w/152,000 miles
152,000 miles on my 2004 EB w/LS - no major problems other than hub/bearings (which are are simple DIY). Mileage is 14.5 to 15 around town and 17 highway. Original plugs and coils. The late-in-the year production units seem to have the fewest problems.
With regards to the 24V engine, I though the early versions of those had the spark plug blowing out issue? Be careful of that problem. While I too would like the airflow characteristics of the 24V head, I count my blessings that I have never experimented with helicoil kits!
With regards to the 24V engine, I though the early versions of those had the spark plug blowing out issue? Be careful of that problem. While I too would like the airflow characteristics of the 24V head, I count my blessings that I have never experimented with helicoil kits!
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jscotlandr
1997 - 2006 Expedition & Navigator
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Apr 15, 2011 08:50 AM
