2002 Saturn SL2 Q&A
2002 Saturn SL2 Question: what is spark plug order and firing order
I need to know what order the spark plugs are in and then the firing order for the coil - Visitor
Firing order is 1-3-4-2 Facing the engine compartment under the hood, the number one cylinder is on the left (passenger side). 1-2-3-4 left to right. - DaveJHM
I did a full tune up on my sister-in-laws car, new plugs (ac delco) plug wires, o2 sensor, made sure the plugs were gaped proper, car ran OK prior to the tune up but was overdue by 40k/mi. After th...