Hyster S80XL:
Cranks over won't start

I have a Hyster S80xl v6 4.3 litre forklift that cranks up but won't start and no spark. Changed cap, rotor, coil, plugs, crank sensor, relay, and checked all fuses and battery still nothing...Help!!!
  • Posted 28 May 2017 17:33
  • Discussion started by Jazzman007
  • Utah, United States
Showing items 1 - 5 of 5 results.
I haven't seen a lockout solenoid on my machine of the same model as his...hopefully you're still active here. I have a weak spark but definitely not getting propane flow while cranking.
  • Posted 24 Feb 2025 06:25
  • Reply by Jon_Kargol
  • Illinois, United States
Done... thank you... Let's see if we can't get this bad boy running
  • Posted 2 Jun 2017 11:47
  • Reply by Jazzman007
  • Utah, United States
Post a email address in your profile.......these trucks also have a Cam sensor mounted under the Distributor cap/rotor...there is also a Ignition control module involved....
  • Posted 2 Jun 2017 11:43
  • Reply by kevin_t
  • Pennsylvania, United States
Thanks Swoop, replaced oil pressure sensor and still no go... S/N is F004V02303B... I'm at m my wits end... Thanks...
  • Posted 2 Jun 2017 11:24
  • Reply by Jazzman007
  • Utah, United States
hello Jazzman,
first, having a serial number would be very helpful.
second, coming here for help was a better idea than throwing parts at the problem.
once we figure out whats on this truck from the S/N we can guide you more effectively, just throwing parts at a problem these days is very expensive and unnecessary.

there are a lot of knowledgeable people here and we can help you fix this :o)

just knowing these engines and systems though a couple things i would say to check right off would be the oil pressure switch, they have been known to fail, if they fail the ignition system is disabled and the engine will not run.
another thing is to verify it is getting fuel, is this lpg fuel?
if so then the lockoff solenoid valve should be operating when the key is turned on, also check the nozzle at the fuel hose and tank and make sure it is screwed completely up on the tank, remove it and make sure the inside of the fuel line nozzle is clear , no other gaskets caught up inside it. When it is screwed up on the tank the gap between the hose side nozzle collar and the tank nozzle should be no bigger than 1/8in or smaller. Sometimes the large round gasket at the end of the male side on the tank will come off getting stuck inside the hose nozzle. When you put a new tank on the truck that keeps it from **** up completely not allowing fuel to go thru.

there may be a couple of other electrical things that may cause it not to get spark but we can deal with that once we know more about this model you have.
  • Posted 29 May 2017 02:18
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

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