2003 DODGE RAM spark plugs replace

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Page 484 of 2895

DODGE RAM 2003  Service Repair Manual NOTE: Over or under tightening the sensor mount-
ing bolts will affect knock sensor performance, pos-
sibly causing improper spark control. Always use
the specified torque when installing the knock se

Page 486 of 2895

DODGE RAM 2003  Service Repair Manual mal in condition and can be cleaned using standard
procedures.
CHIPPED ELECTRODE INSULATOR
A chipped electrode insulator usually results from
bending the center electrode while adjusting the
spark plu

Page 487 of 2895

DODGE RAM 2003  Service Repair Manual REMOVAL
3.7L V-6
Each individual spark plug is located under each
ignition coil. Each individual ignition coil must be
removed to gain access to each spark plug. Refer to
Ignition Coil Removal/Install

Page 488 of 2895

DODGE RAM 2003  Service Repair Manual 8.0L V-10
(1) Always remove spark plug or ignition coil
cables by grasping at the cable boot (Fig. 50). Turn
the cable boot 1/2 turn and pull straight back in a
steady motion. Never pull directly on t

Page 489 of 2895

DODGE RAM 2003  Service Repair Manual 4.7L V-8
CAUTION: The 4.7L V±8 engine is equipped with
copper core ground electrode spark plugs. They
must be replaced with the same type/number spark
plug as the original. If another spark plug is s

Page 490 of 2895

DODGE RAM 2003  Service Repair Manual IGNITION COIL CAPACITOR
DESCRIPTION
One coil capacitor is used. It is located in the right-
rear section of the engine compartment.
OPERATION
The coil capacitor(s) help dampen the amount of
conducted

Page 1254 of 2895

DODGE RAM 2003  Service Repair Manual CONDITION POSSIBLE CAUSE CORRECTION
4. Incorrect cam timing. 4. (Refer to 9 - ENGINE/VALVE
TIMING - STANDARD
PROCEDURE).
1. ENGINE LOSS OF POWER 1. Dirty or incorrectly gapped spark
plugs.1. (Refer to

Page 1257 of 2895

DODGE RAM 2003  Service Repair Manual CONDITION POSSIBLE CAUSES CORRECTION
OIL PUMPING AT RINGS; SPARK
PLUGS FOULING1. Worn or damaged rings. 1. Hone cylinder bores and replace
rings.
2. Carbon in oil ring slots. 2. Replace rings (Refer t