Thread: Coolant and ATF fluid leak

I had a persistent oil leak wetness in this area and it was from the transmission cooler hose at top of radiator tight in with coolant bottle and the diff breather. The one you remove to push out transmission fluid if changing that way. It was just weeping and running down side of radiator a tiny amount. Coolant is very likely when filling the bottle it will spill down there.

Little U hoses are fuel cooler over by the starter motor. Little black hard plastic pipes into those rubber ones run under the radiator cowl.

Always a good method to use degreaser and wash everything and see after a few days with covers and lower plates off what comes back.

Removing the fan cowl and side covers gives great access to this area on 2.7 and very easy to strip and access hoses and thermostat. Pop all the hoses off from the underside cowl brackets before trying to lift it out and don’t forget small bolt at side of plastic air delivery pipe to turbo that connects to the cowl.

Originally Posted by PerthDisco

Always a good method to use degreaser and wash everything and see after a few days with covers and lower plates off what comes back.
Removing the fan cowl and side covers gives great access to this area on 2.7 and very easy to strip and access hoses and thermostat. Pop all the hoses off from the underside cowl brackets before trying to lift it out and don’t forget small bolt at side of plastic air delivery pipe to turbo that connects to the cowl.

Hi, Yes.
What I posted was after a good degrease and about 5-10min running to pressurise the cooling system.
I was more surprised how quickly the ATF is leaking.
Agreed easy to get to mostly, but I'm stuck as to the p/n for the coolant hose in question. I'm sure its a short U shape, I traced it with my hand, but could be wrong
Either way, it's sunday arvo, I've little motivation left this weekend lol.

Ralph

Update:
Pulled the fan and shroud for better access.

The ATF was leaking from where the ATF hose enters the cooler, the hose was able to be rotated by fingers! But. I couldn't tighten it because of a dodgy hose clamp! Replaced the clamp and I reckon its good!

The coolant is a bit more annoying. The hose below the ATF seems a bit 'soggy' and the clamps are rusty so I'll replace the whole bit. It is a 'U-ish' rubber pipe which joins to a plastic coolant line as seen in the bottom of the pics where the weeping join is.
IMG_20230209_162308730.jpgIMG_20230209_162326851 (1).jpg

Surprisingly, I hadn't noticed the leaking coolant around the temp sender, so new one of those inbound as well.

IMG_20230209_162333605.jpgIMG_20230209_162335671.jpg

Frustratingly, when I removed the fan, the fan connector wasn't connected, which may explain some erratic temps and A/C cycles I've been getting since the A/C compressor was replaced.

Cheers
Ralph

Ralph, what coolant is that? Looks like Castrol.. Also is it the original fill or after a change

Originally Posted by josh.huber

Ralph, what coolant is that? Looks like Castrol.. Also is it the original fill or after a change

Hi
The car has had numerous flushes for various reasons, oil cooler, radiator changes etc. Currently it's got Nulon in it.


Cheers
Ralph

The offending hose!
All sorted now.

IMG_20230219_101019097_HDR.jpgIMG_20230219_100958139.jpgIMG_20230219_100948396_HDR.jpg

Cheers Ralph

Ralph,do you have the part number?

Has anyone priced up a new set of coolant hoses recently?