Toyota HZJ105 Diesel cranks but does not start mostly when hot, wait awhile then starts any ideas

I would try a new fuel filter. Its possible that when the engine is hot, the fuel is vaporising causing the hard start?

Don't just keep cranking if it don't start right away' Give the starter a break. It's getting hot because you just keep cranking on it. Any vehicle diesel has glow plugs to heat the fuel chamber to make it start fast. Be sure you are making use of the glow plugs and it will start fast. If your glow plugs are not working, find out why. Could be just the glow plug relay or connection to it. Or possibly the glow plugs are burned out. Either way, you HAVE to have glow plugs in use on a diesel upon initial start up till it's warmed up. Then will start without them. Most are automated system. You just have to wait till the glow plug light goes out to start cranking on it. I hope this helps you to more understand the workings of a diesel cold start system.

Low fuel pressure or problem with spark plugs or crank sensor is got dirty and needs cleaning or its time to replace crank sensor.


Check out the help links shown below for no start problem and cranks but no start problem.


Click the link :-----

It can be the issue with weak battery or faulty battery or if battery is ok,then its faulty starter causing the issue.

From start to end troubleshooting these problem i suggest you to click the link below and follow its procedure:-----

What to Do When Car Turns Over But Won't Start?

http://technoanswers.blogspot.com/2012/11/what-to-do-when-car-turns-over-but-wont.html

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Car starting issues?

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

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Car Starting Problems

http://whoisbyme.blogspot.in/2012/06/car-starting-problems.html

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http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

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http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

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http://whatisbyme.blogspot.in/2012/06/1999-chrysler-cirrus-8-ign-fuel-starter.html

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2001 Toyota Camry: No start After replacing Battery?

http://whatisbyme.blogspot.in/2012/05/2001-toyota-camry-no-start-after.html

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1989 Toyota Pickup Truck: Turns over but not start? http://whatisbyme.blogspot.in/2012/05/1989-toyota-pickup-truck-turns-over-but.html

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Car dead and will not Start? http://whatisbyme.blogspot.in/2012/05/car-dead-and-will-not-start.html

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1995 Lexus LS400: Running Hot?

http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html

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2001 Toyota Prius will not start? http://whatisbyme.blogspot.in/2012/05/2001-toyota-prius-will-not-start.html

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1996 Jeep Grand Cherokee: Engine will not start? http://repairhelpcenter.blogspot.in/2012/06/1996-jeep-grand-cherokee-engine-will.html ------------- Mitsubishi will not start

http://www.howtorepairguide.com

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These will help.

Thanks.

Check the fuel line pressure it may be low should be 55lbs

The wait to start light is telling you there's a problem. Check out your drivers guide. There can be a whole load of problems causing this problem, water in the diesel, blocked fuel filter, no diesel, but if it cranks and starts eventually. The glow plugs probably need replacing.

may have a problem with the injectors let it idle till it gets hot and see if it dies if so get the injectors checked

spray silicone spray while cranking until you can get the air out of the fue line it will run on silicone spray

first thing i would check is if your glow plugs are actually any good. next i would check your injectors, then the injector pump make sure it's got the needed pressure. change the fuel filter and reprime the system. if the problem still occurs then look for leaks on the fuel system considering it will start with ether tells me it's somehow losing it's prime.

Visited Local Diesel Pump Expert He Diagnosed Worn Injector Pump