Northstar Engines and System Technical Discussion Discussion, Is this a cracked intake plenum? (see attached pics) in Cadillac Engine Discussion; Originally Posted by gbrown2934
I am having some idle issues when cold, had 2 codes po171 and po174, bank 1 ...
Re: Is this a cracked intake plenum? (see attached pics)
Thanks for the info, found the rubber plenum with a big crack. Had a friend replace it for me, I read a few of the replacment procedures, my friend didnt have to remove the fuek rail save some time. Thanks again for the help.