Engine knocks when cold...

[RmGuY0708]

Alright so I put new injectors in my truck and now it knocks for the first 2 minutes until it is warmed up a little. Outside temperatures are around 35-40 here now. What could cause this?

[deerefanatic]

Alright so I put new injectors in my truck and now it knocks for the first 2 minutes until it is warmed up a little. Outside temperatures are around 35-40 here now. What could cause this?

Welcome to owning an IDI diesel....... All Indirect Injection (IDI) engines knock like they're gonna blow when they're cold.......... It's fine.......

[torque454]

Every 6.5 ive ever heard sounded like that when it was first started when cold. Also new injectors supposedly knock like that for a while until theyre broke in.