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Aug 21, 2022 | 05:20 PM

ribsore

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4th Gear

Joined: Aug 2022

Posts: 4

Likes: 0

Hi!

Hello, I;m a new member to this site. I have a 1998 ford E350 Clubwagon with the v10 6.8L Triton engine. My reason for joining is because I keep getting obd codes P0300, P0302, and P0307. I've installed new Motorcraft spark plugs (sp479) and Motorcraft coil pacs on all 10 cylinders. It has a brand new catalytic converter and down stream o2 sensor. I replaced the fuel pump and fuel filter a year ago. It was recently hooked up to a smoke machine and there were no vacuum leaks. I tested the EGR valve with a vacuum gauge and it was good. It runs mostly smooth for a 24 year old vehicle (RV). There is a sporadic rattle/shaking periodically every now and then while driving. Any thoughts and suggestions would be greatly appreciated.

I'm thinking maybe fuel injectors? I've held a rubber tube to them and my ear and I can hear ticking. Maybe fuel filter needs changed again, but wouldn't that effect other cylinders?

Aug 21, 2022 | 05:58 PM

pbsdaddy

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Joined: Feb 2015

Posts: 17,559

Likes: 1,081

From: Central Delaware

Welcome to FTE. I see you have found the proper place to post your question(s). You might also try, Performance, Engines and Troubleshooting. And don't forget to join your state chapter, (Cali has two).