Having problems with your GMC K3500 ?

I have a diesel 6.2 it starts cold fine. but after its hot it wont start again.

Posted / edited by AnonymousUser on : 24-06-2019

Answers :

\015\012A hot start problem on a diesel is almost always due to a worn injector pump. Diesel fuel is an oil and it thins out as engine temperature climbs. After shutting off a hot engine, the temperature climbs even further. A worn injection pump cannot develop enough pressure to get the injectors to open and start the engine hence the refusal to start when hot.
\015\012As your starting problems are confined to hot starts and in the absence of any other symptoms this is the key suspect.
\015\012Hope this helps. Please do rate my answer. Many Thanks.
Sounds like your injector pump is bad. I recommend replacement.
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