courier runs warm on hills

nifty nev
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Posts: 785
Joined: June 17th, 2009, 8:43 pm
Location: whyalla

courier runs warm on hills

Unread post by nifty nev » February 28th, 2018, 1:49 pm

Have an issue thats started a few mths ago. Towing trailer with a quad bike on a fishing trip and aircon starts blowing hot. Noticed temp gauge was right up there. Stopped and after cooled down no issues for the rest of trip. Few weeks later without trailer she got warm on a long steep hill bit temp lowered as soon as hill leveled out. The overflow bottle is filling until full then blowing out into the engine bay.
Have changed both hoses and rad cap with a new theromstat on order.
Few days ago she struggled on hills and got warm again towing a tandem trailer from whyalla to great ocean road and back again with a big motorbike and small trailer after my brother threw the bike down the road.
New thermostat will be here lunch tomorrow and get fitted but ive been told i might have a cracked head.
How do you check for that problem?. Not leaking coolant from anywhere else only the overflow bottle when it just gets too full.
2004 pg courier 2.5td with 273xxx kms

workhorse
Been here a while
Posts: 460
Joined: July 26th, 2008, 4:03 pm

Re: courier runs warm on hills

Unread post by workhorse » March 4th, 2018, 6:00 pm

bubbles in the water when running with the cap off.
almost every courier is going to have this happen and the gearbox.once these are done its all good

Peter Aawen
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Joined: June 17th, 2005, 8:01 pm

Re: courier runs warm on hills

Unread post by Peter Aawen » March 5th, 2018, 1:40 pm

To check for a cracked head/blown head gasket, just duck in to whoever you use for servicing or a trusted radiator place & get them to test for combustion gases in the coolant &/or do a compression check. Shouldn't take long/cost too much to do that & the results should tell you of it's a leaky gasket &/or from a crack in the head/cylinders letting gases into the coolant & creating your problems.... and removing/replacing the head gasket or even fitting a replacement head really isn't all that much of major job, altho you DO want it done properly!! So if you don't feel up to spinning the spanners that much, get someone competent to do it for you & sort your vehicle properly!! :thumb:

Continuing to drive it with a potentially cracked head or a leaking head gasket is not a great idea, & you are risking destroying the entire engine if you do - get it fixed ASAP (or even sooner! :eek: ) And make sure that whoever refills the cooling system afterwards bleeds the cooling system properly so that you don't have any air pockets trapped in there just waiting to cause exactly the same issues again & require a repeat fix!! Don't laugh, it does happen! :o

Good Luck! ;)
An Ex-Service person is someone who thought enough about their country & how great it is, how lucky we are to live here, to write a blank cheque made out to 'The People and Commonwealth of Australia' for the value of 'Up to & including my Life!'

nifty nev
Avid Poster
Posts: 785
Joined: June 17th, 2009, 8:43 pm
Location: whyalla

Re: courier runs warm on hills

Unread post by nifty nev » March 6th, 2018, 10:08 am

Problem sorted. Dud thermostat. No place in town could get me one with a jiggle valve so went genuine which was 15 dollars cheaper than aftermarket. Put that in along with a new radiator and shes purring again. Head is showing no sign of a problem thankfully. Thanks for the help . Much appreciated

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