Engine Firing Order - 3.7L; Engine Firing Order - 4.7L V-8; Firing Order / Cable Routing - 5.7L; Engine - Dodge RAM 1500 1998 Owner's Manual

8I - 4 IGNITION CONTROL
IGNITION CONTROL (Continued)
ENGINE FIRING ORDER - 3.7L V-6
1 - 6 - 5 - 4 - 3 - 2
ENGINE FIRING ORDER – 4.7L V-8
FIRING ORDER / CABLE ROUTING – 5.7L V-8

ENGINE

Eight conventional spark plug cables are used with
the 5.7L. These cables connect a coil on one cylinder
bank, directly to a spark plug on the opposite cylin-
der bank. The cables are placed and routed in a spe-
cial plastic loom to keep them separated. This loom is
clipped to the intake manifold. To prevent a miss-

SPARK PLUGS

ENGINE
3.7L V-6
4.7L V-8
5.7L V-8
match of cables, a corresponding spark plug / coil
number is displayed on each plug cable: 1/6, 2/3, 4/7
and 5/8. These numbers can also be found on the top
of the intake manifold to the right of the throttle
body (Fig. 2).
Fig. 2 FIRING ORDER / CABLE ROUTING - 5.7L V-8
1 - TOP OF INTAKE MANIFOLD
2 - CYLINDER FIRING ORDER (IGNITION COIL NUMBER)
3 - CORRESPONDING SPARK PLUG NUMBER

SPARK PLUG CABLE RESISTANCE

250 Ohms Per Inch
3000 Ohms Per Foot
PLUG TYPE
ZFR6F - 11G (NGK)
RC12MCC4
Champion - RE14MCC4
ENGINE
MINIMUM
12,000 Ohms Per Foot
ELECTRODE GAP
1.1 (0.042 in.)
1.01 mm (.040 in.)
1.14 mm (.045 in.)
DR
MAXIMUM
1000 Ohms Per Inch