Wrangler 2WD V6-3.8L (2008)
straight back in a steady motion.
NOTE:
Even numbered engine cylinders are located on the left bank on (JK) Wrangler models and on the front bank on (RT) minivan models.
CAUTION:
Note the spark plug wire location and routing to ensure they are installed in their original positions after the spark plugs are inspected and/or
replaced.
4.
Using a quality spark plug socket with a rubber insert (Snap-on S9706KFUA or equivalent), carefully remove the spark plugs from the even
numbered engine cylinders.
5.
Inspect the spark plug part numbers:
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Spark plugs with the number "RE16MC" must be replaced (Figure 1).
NOTE:
These spark plugs will have one row of text on them. "CHAMPION
RE16MC" is printed on a single row (Figure 1).
>
Spark plugs with the number "RE14PLP5" do not require replacement (Figure 1). These spark plugs are the correct plugs and must be
reinstalled.
NOTE:
These spark plugs will have two rows of text on them. "CHAMPION"
is printed on the upper row and "RE14PLP5" on the second row (Figure 1).
6.
Check and adjust the spark plug gap to 0.050 in (1.27 mm).