John d Posted 8 hours ago Share Posted 8 hours ago (edited) I have a 2013 Mac with a mp8. The truck will not build more than 20 lb of boost. Also in the morning it takes 10 to 15 seconds to start like it's losing fuel pressure. I've changed all the fuel filters and the fuel pressure regulator on the front of the motor doesn't seem to be helping at all. Also there are no boost Any were.Any recommendations?? Thank you. Edited 8 hours ago by John d Quote Link to comment Share on other sites More sharing options...
fjh Posted 5 hours ago Share Posted 5 hours ago Have you had it checked for injection cup issue very common on these! They run the engine with a clear hose on the return line and look at the bubbles! 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.