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Axledragger's avatar
Axledragger
Explorer
Jan 04, 2017

Diesel engine hard to start. But runs great.HELP

I have an airstream motorhome with a Cummins diesel type C engine with only 45000 miles. I have never had a starting issue. Now It only has a problem at cold start (67 degrees) after that it starts ri...
The_real_wild1's avatar
The_real_wild1
Explorer
Jan 04, 2017
What year is it? Lots of changes throughout the years. At that temps a grid heater won't matter so it shouldn't matter if you have one it not. It is on the intake BTW if you have one. I am thinking as other mentioned you are losing prime. Not sure if you have a hand pump or an electrical pump for prime. There should be a fuel regulator/ check valve that keeps the fuel from draining back. This may have failed as well.

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