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post #7 of Old 04-23-2019
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Re: Universal diesel wont start when engine is hot!

Sounds to me like you are getting a vapor lock somewhere in the fuel system. When the engine cools it dissipates and returns when the hot engine has been sitting awhile.
Also, a warm engine has expanded and will have a bit more compression than a cold one, making the engine turn over slower, but to get started now there's no fuel.
It can often be a combination of several little things and solving one might not end the problem.

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