Question about 2002 Ford Explorer Sport
1999 ford Explorer XLS with original 65,000 miles
4.0 SOHC 4wd
The codes in the subject line stipulate that bank 1 & 2 are too lean. Replacing the following parts did not fix the problem.
Replaced MAf sensor & check engine light came back on
Replaced right bank & left back 02 sensors & check engine light came back on. The
Please help if you can.......James have same issue with 2002 ford explorer sport 4.0 liter motor, I do not want to put on a lot of stuff if it does not solve problem, also code readout gives possible problem as a failed HO2S21 or H02S21.
The intake manifold gaskets need replacement as well as the o-rings inside - if you call FORD they should be able to get you the correct parts.
Posted on Nov 05, 2008
Look, man here is the deal:
code p0174 - refer to the front cylinder bank
code p0171 - refer to the rear cylinder bank
Posted on Jun 22, 2008
Intake gasket leak
Posted on Aug 26, 2008
Which O2 sensors did you change. Your car has 4. One in front of each cat (catalytic converter) and one behind each cat. I have a 99 explorer with 205,000 miles and I have only changed the ones in front of the cats. The other two are still oniginal. Check to see which ones were changed.
Posted on Aug 08, 2008
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Posted on Jan 02, 2017
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