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4JG2 1995 3.1TD Bighorn stalls after few minutes running

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4JG2 1995 3.1TD Bighorn stalls after few minutes running

Postby loz50 » Thu Mar 07, 2019 9:32 pm

Hi All,

My 300,000km bighorn has just stared messing about, it is generally in great mechanical order, runs great, i have owned it 11 years - it is now used mainly on farm, but it is still rego'd & warranted.
Suddenly it has started stopping after running for a few minutes, It seems it runs longer from cold.
When it stops it is a dead cutout, all electrics still operating turns over etc but not trying to start.
after a few minutes it will start easily, run a little in a normal manner, then cut out again, when it is running it drives perfect and it feels electrical like a fuel solenoid shutting, not like gradually running out of fuel, have tried it with or without turbo timer set to operate, have replaced fuel filter, blown feed line through back to tank. no changes at all.
if it is idling when it cuts out, it gives a little rev up just before it stops.

any common issues that cause this?

is it a relay, switch or solenoid heating up then shutting off?

thanking you in anticipation :-)
loz50
Isuzu Baby
 
Posts: 15
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Age: 50
Country: NZ
City: Maungaturoto
Vehicle: 1995 Bighorn 3.1D UBS69GW

Re: 4JG2 1995 3.1TD Bighorn stalls after few minutes running

Postby tonkamu » Sat Mar 09, 2019 12:35 pm

just my 2 cents, the primer pump often gets a hole when you prime fuel in, if its still squishy when you pump it, then it needs replacing or fixing. should rule that one out easy.
tonkamu
Isuzu Senior
 
Posts: 156
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Age: 36
Country: NZ
City: Auckland
Vehicle: 2.8 Mu 1991 All Black. MODS - Rear Lifted 2.5" Lovells Leafs / Rear Auto Locker / LSD in front / 33x12.5x15 MT Achilles / 9500 RUNVA w plug n kills switch inside cab / EGT, Voltage, Turbo timer, Boost gauge / 20 PSI VF10 Turbo with VF10 exhaust housing 2.5" downpipe with merged 2" wastegate pipe to full 2.5" straight pipe / GFB Boost Tap / Maxed fuel with grinded down cable stop / Adjusted Boost Compensator / 3.1 Oil Cooler / Intercooled / 3" Custom intake to sealed K&N airbox & filter to Snorkel / Catch Can / Xtreme Outback HD clutch / 80 amp alt / RockfordFosgate 300rms AMP w 2X Rockford Power 6x9's BT HDeck / all EGR, QWS, AC pump deleted.


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