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1989 780 Turbo won’t start. 700 1989

uid 27's pic
posted by  Art Benstein on  Sat Sep 28 17:17 CST 2024
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

Let's say it is indeed too much fuel. Pulling the plugs, finding them wet, it will start again once you evaporate the excess fuel in the manifold and cylinders. Instead of jumping on the electronics, check the fuel pressure in the rail. Check for fuel in the vacuum line to the fuel pressure regulator.

Yes the temp sensor in the head (not block) for the LH2.3 system can be open circuit and cause fuel enough to start in the Yukon but flood it in Texas. Do a simple resistance measurement if you know the fuel pressure regulator is doing its job.
--
Art Benstein near Baltimore

"I don't want to retire. I'm not that good at crossword puzzles." -Norman Mailer






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