might be an engine knock

[f350crew/long]

I'm a new owner of a 2002 f350 7.3 powerstroke. Never owned a diesel before. I know they are louder then regular gas motors, but it allmost sounds like I have a knock. Don't feel loss of power or see smoke. Just not sure if I'm hearing a knock or normal operation. Any suggestions or comments would be highly appreciated.

thanks f350crew/long

[RadarRider]

Originally Posted by f350crew/long

I'm a new owner of a 2002 f350 7.3 powerstroke. Never owned a diesel before. I know they are louder then regular gas motors, but it allmost sounds like I have a knock. Don't feel loss of power or see smoke. Just not sure if I'm hearing a knock or normal operation. Any suggestions or comments would be highly appreciated.

thanks f350crew/long

7.3's are known to have injector 'cackle', which can be pretty loud @ times, especially when you have the #8 injector intermittently being starved. Try a contribution test with a scan tool & see if you have any injector codes 1st.

[Ryan Rønning]

They make a very distinct sound at idle that is easily mistaken for a rod knocking. It might be what Raider said or it may be nothing at all!

[badazzstroker]

more than likely the sound of a healthy 7.3 STROKER!!!

[f350crew/long]

Originally Posted by RadarRider

7.3's are known to have injector 'cackle', which can be pretty loud @ times, especially when you have the #8 injector intermittently being starved. Try a contribution test with a scan tool & see if you have any injector codes 1st.

Thanks for the comment. After posting the thread, I took the truck to 6 different mechanics. About half were diesel. They all told me # 1 rod was making the noise. After all said and done, My warranty and used car dealer are either replacing the engine with a short block or finding a used motor. The used dealer could not believe this was the case, and frankly I couldn't either. Sounds like the person that sold this to the dealer, masked the problem.

Before I posted the first thread, I had a mechanic perform a scan and he found nothing.

[RadarRider]

Originally Posted by f350crew/long

Thanks for the comment. After posting the thread, I took the truck to 6 different mechanics. About half were diesel. They all told me # 1 rod was making the noise. After all said and done, My warranty and used car dealer are either replacing the engine with a short block or finding a used motor. The used dealer could not believe this was the case, and frankly I couldn't either. Sounds like the person that sold this to the dealer, masked the problem.

Before I posted the first thread, I had a mechanic perform a scan and he found nothing.

He might've performed the scan, but did he try a buzz test?

[f350crew/long]

Originally Posted by RadarRider

He might've performed the scan, but did he try a buzz test?

Don't think so.