Zd30 common rail overheating

again could be air and wasnt all bleed out, now after driving and topping it up it may be bleeding air out and getting better.
there is no harm in taking the pressure cap off the coolant bottle and sit the car till its up to temp, turn the heater on and and make sure the ground is level or at least the top of the bottle is the highest point of the cooling system.
and you may find some air coming out after about half an hour you should have all the air out and put the cap on and go for a drive.
hope that makes sense it would be easier to talk rather than type.

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Originally Posted by ReggieRay

anyone in Brisbane who can help? can pay $$.. every mechanic I go to doesn't seem to know what they're doing and charge me money for just farting around.. I've topped the non pressurised overflow bottle up a few times already..
I did a 40 minute round trip today with an hour break in between with no issues strangely �� first time in ages it has run without issues..
anyone in Brisbane can help?

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This tells me there must have been air in the system and its bleeding itself out.

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Originally Posted by mudski

This tells me there must have been air in the system and its bleeding itself out.

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Since you posted that it is a self blurping system, I wonder if there is a blockage somewhere. @ReggieRay did you have the heater control set to hot with when you filled the system?

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Originally Posted by mudnut

Since you posted that it is a self blurping system, I wonder if there is a blockage somewhere. @ReggieRay did you have the heater control set to hot with when you filled the system?

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Yeah they are mate. Since he's stated that he's topped it up a few times and its been ok on the last trip. It might have just been that. We hope. And the Patrol dont run a heater tap so having the heater on hot or cold wont make a difference.

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Originally Posted by mudski

Patrol dont run a heater tap so having the heater on hot or cold wont make a difference.

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Learning stuff on here, every day.

i did not know that, as a general rule on all cars ive always turned the heater on the bleed the cooling system.
figure it cant harm it but good to know.

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Originally Posted by Fireblade

i did not know that, as a general rule on all cars ive always turned the heater on the bleed the cooling system.
figure it cant harm it but good to know.

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Yeah the Patrols just divert the hot air from the box rather than using a heater tap to shut off the water supply to the heater core. Been thinking about running a tap somehow as heat does tend to get in via the vents and you really feel it in the summer.

so did a long run around town and was ok until I got on the highway 🤦*♂️🤦*♂️🤦*♂️ when I got off the highway, it got better... what should I do? flush the block? anyone in Brisbane who can help with this? what do you think about this product or is it a gimmick? https://costeffective.com.au/product...ng-value-pack/

It may work but it may be a solution to a cause that you don’t have.
Medicine is good if you have the exact sickness that it’s meant for..
Also saw a price of $500 so not like it’s cheap I feel first step is to get eyes and hands of someone who know what they are doing to look at it..
I Knew a mechanism that said he once saw a patrol air con condenser fan fail and then the confessor heat soaked the radiator causing heating issues, only just remembered the story. Not saying that’s your issue but worth a look

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Originally Posted by ReggieRay

so did a long run around town and was ok until I got on the highway [emoji1751]*[emoji3603][emoji1751]*[emoji3603][emoji1751]*[emoji3603] when I got off the highway, it got better... what should I do? flush the block? anyone in Brisbane who can help with this? what do you think about this product or is it a gimmick? https://costeffective.com.au/product...ng-value-pack/

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If your going to flush the block find a truck parts place who sell Fleetguard Restore Plus. Trust me. This is the best on the market. I’m a Fleetguard wholesaler and been selling this stuff for 25 or so years. No cleaner comes close to this stuff.

https://www.cumminsfiltration.com/si...es/lt36625.pdf

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