Forum Discussion

Bagman3605's avatar
Bagman3605
Explorer
Jun 10, 2015

Onan 5.5 HGJAB12038D

Class A MH w/ full fuel tank, clean filters, 450 hours, exercised regularly. Dies after 12-15 minutes under load. No codes. Looking for ideas.

4 Replies

  • My guess is fuel pump getting to hot. If you search you will find that some models had issues with the fuel pump overheating and causing a vapor lock type situation. The cure people found was to move it off the motor and mount somewhere else where it is not subject to direct engine heat.
    Sorry I cannot find the threads right now

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,351 PostsLatest Activity: Jan 20, 2026