Engine/Transmission (1994 - 1998) frost plugs replaced and keep blowing out.

[Garry Verheyden]

I have a 1993 cummins. One of the frost plugs in the block was visually rusted and leaking. I had them replaced but one keeps blowing out when the vehicle is driven. Now I live in fear that they will keep coming out. What can I do?

 

[Turbo Tim 1]

Where did the replacement frost plugs come from? Could they be inferior quality and they are not quite the right size?

 

[Joe G.]

I had a problem like that once. It turned out to be that the plugs were a little bit too large so they deformed when driven in.