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LBS Tech
LBS Tech, Ford Auto Technician
Category: Ford
Satisfied Customers: 296
Experience:  Ford Senior Master Tecnician,ASE Master Tech and L1 Certified, Ford Certified Diesel Tech
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I need the firing order for a 1998 F-150 4.6L Triton ...

Customer Question

I need the firing order for a 1998 F-150 4.6L Triton engine. Also I have a misfire on the 4 cylinder and misfire on 5 cylinder. Why ? How should I fix this?
Submitted: 10 years ago.
Category: Ford
Expert:  LBS Tech replied 10 years ago.

Thank you for your question. First check your plugs and wires on those cylinders. These engines are due for a tune up at 100,000 miles. With the age of the truck a tune up may be due. Doing all plug wires at once is usually most cost effective since once one goes the others usually are not far behind. Here is the firing order for you. Please reply with any questions you may still have.

Firing Order 1-3-7-2-6-5-4-8