.040 is the correct gap. But if you want to make sure, there should be a sticker under the truck's hood were it specifies the correct gap.
SPARK PLUG GAP2003 Dodge Truck RAM 1500 1/2 ton 2WD 4.7L SFI 8cylThe Spark Plug Gap.040 (In thousandths of an inch)
.040 inch
per every cylinder is one spark plug......you have 8.
What is the spark plug gap suppose to be on an irdium spark plug for a 2003 1500 5.3L T?
Dodge Spark Plug GapCall an auto parts store and they can tell you..040 inch
.035 in
The Dodge ram 1500 rough idle can because by a bad spark plug or spark plug wire. The rough idle can also because by a bad camshaft.
.040 inch
.40
1-6-5-4-3-2
.040 inch
.040 inch