7.3 knock ????

[drummondracing]

Hey guys I am a newbie to this site and I need help!!! I just bought (2 weeks ago) my first powerstroke, 01 f350 crew cab dually 4X4. 7.3 with a banks big head, exhaust and ,chip. My complaint is the engine has a non diesel associated knock which seems louder on the left side I can hear is very loudly in the cab especially when coasting not touching the gas pedal. when I open the hood it seems to be under the left valve cover?? Push rod maybe??? Kind of hard to hear with the hood closed but if you walk 25 feet away its very clear and kind of embarassing.The truck runs like a scalded dog and has no smoke and great oil pressure. I hope to god I didnt buy a lemon or something that is going to be a money pit. I have been a mechanic (gas) for over 18 years but have never fooled with diesels.The truck has 151,000 miles mostley highway towing miles. HELP!!!!!!!!!! I posted this in the 911 section as well Thanks,David

[dieseldan2005]

#8 fuel injector. My truck does the same thing. Its called injector cackle. Its very common on 7.3's. I think its caused by not enough oil getting to the rear injectors.

[1995psd]

what kinda chip do you have?

[drummondracing]

Dont know what kind of chip it is it not adjustable though old school.I know the shop that installed the chip also did the banks,exhaust,gauges,leveling springs,shocks and rear bags at the same time, Invoice was over $7400.00 somone had money to burn!!New trans 20K ago still under warrany still have paperwork was just over $4500.00.......Got the truck for $13.900 cash maybe I did o.k. after all