I need to get the firing order for my Marine son's truck and the cylinder numbering/layout for this truck. I have a misfire code for number 5 cylinder:icon_ spitball:

 

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Doesnt it say the firing order on the intake?

[edit] - nvm. I found this for you.

The 3.7 liter (226 CID) six-cylinder engine is an 90° single overhead camshaft engine. The cast iron cylinder block is made up of two different components; the first component is the cylinder bore and upper block, the second component is the bedplate that comprises the lower portion of the cylinder block and houses the lower half of the crankshaft main bearings. The cylinders are numbered from front to rear with the left bank being numbered 1,3, and 5 and the right bank being numbered 2,4, and 6. The firing order is 1–6–5–4–3–2. The engine serial number is located at the right front side of the engine block

 

Thanks, weedahoe for your information!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

What you should do is go into his signature and download your service manual (if you haven't done so already).