Isuzu Trooper Owners Club UK™

:::Matski:::

Hi, my coolent is not exspanding into the coolent exspantion tank.

It will not draw from it either.

The pipe is clear and the spring can be compresed on the rad cap.

Any ideas?

*excuse the spelling useing a diferant comp with no spell cheaker on Rolling Eyes

*

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dxmedia · Posted: Tue Jul 17, 2007 23:56 Post subject:

Mines the same, although it uses no water and appears to run Ok. I've put it down to another Isuzu feature.
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:::Matski::: · Posted: Wed Jul 18, 2007 0:02 Post subject:

My old one was fine.

I may look at a new rad cap Confused

gary820 · Posted: Wed Jul 18, 2007 0:03 Post subject:

i'd probably worry more if it was filling it!! never taken any notice of mine, if it runs fine doesn't overheat etc wouldn't worry too much. must admit don't ever check my coolant level Shocked

just top oil up and screen wash and put bonnet down again!! (and i work for bmw Embarassed

)

:::Matski::: · Posted: Wed Jul 18, 2007 0:11 Post subject:

It should expand into it when hot and take it back when cooler.

If it doesn't it must put more pressure on the hoses???

gary820 · Posted: Wed Jul 18, 2007 0:20 Post subject:

is everything flowing ok? i'd think you would get a bit of a level change do the hoses get pressurised or does it run hot?

IanP · ** Joined: 13 Jun 2005 Posts: 100 Location: North East

On mine the hose to the expansion tank is attached to the radiator after the radiator cap. That means that there is no flow to the tank unless the cap lifts, and once the pressure drops in the radiator the water cant flow back as the cap is shut. Had this a few times this week while experimenting with my electric fan Embarassed

:::Matski::: · Posted: Wed Jul 18, 2007 9:14 Post subject:

It's the flowing back bit that I don't understand. I used to on my old one....

Topvaux · Posted: Wed Jul 18, 2007 10:24 Post subject:

It's probably the top seal of your rad cap, or the rad cap's been replaced with an ordinary one without a seal.