Isuzu Trooper Owners Club UK™

simmyboy · * Joined: 15 Apr 2007 Posts: 12 Location: COATBRIDGE

Hi there I hope someone can shed some light on a cooling problem I have with my 1999 3.1 td moterey. The temp gauge sits around half way under normal driving but once on the motorway doing 70 or above the needle starts to climb towards the top of the gauge. Is this normal or is there something knackered. I have only just bought the car and hope the head gasket is not blown there is no evidence under the oil filler cap and it is not loosing water.

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markymoan · Posted: Sun Apr 15, 2007 17:00 Post subject:

1/2 to 3/4 can be normal, but i would say the rad is partialy blocked either on the outside or inside.

BTW Welcome Very Happy

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simmyboy · * Joined: 15 Apr 2007 Posts: 12 Location: COATBRIDGE

Thanks for the quick reply I hope it is as simple as that I will flush the radiator out and fit a new thermostat.

simmyboy · * Joined: 15 Apr 2007 Posts: 12 Location: COATBRIDGE

thanks for the welcome Very Happy

markymoan · Posted: Sun Apr 15, 2007 17:12 Post subject:

I would also check the dreaded quick warm up flaps are fully open on the exhaust and inlet, they stick Shocked

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simmyboy · * Joined: 15 Apr 2007 Posts: 12 Location: COATBRIDGE

Thanks marky where exactly are these flaps? I have ordered a CD manual off eebuygum but it would be great if you could point me in the right direction. I want it fixed before the wife ends up cooking it!

markymoan · Posted: Mon Apr 16, 2007 11:40 Post subject:

The exhaust one is under the drivers seat, i'm not sure about the inlet on the 3.1
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greasemonkey · Posted: Mon Apr 16, 2007 16:36 Post subject:

hi
always worth checking the rad for cold spots
and cleaning out the fins
does the temp drop if you put the interior fans on hot?
and does it sit nice when in traffic
regards
Steve
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Isuzu Vehicross 3.2 V6 The Silver Bullet

simmyboy · * Joined: 15 Apr 2007 Posts: 12 Location: COATBRIDGE

Hi had a good look at the radiator today and gave it a clean with the hose at which point a lot of the fins fell out at the top of the radiator. Booked it in for tomorrow morning for a new radiator. Hope this fixes it, I will let you know how I get on.

:::Matski::: · Posted: Mon Apr 16, 2007 17:41 Post subject:

Are you sure its not a landrover rad Laughing

jonkem · Posted: Mon Apr 16, 2007 20:00 Post subject:

simmyboy · * Joined: 15 Apr 2007 Posts: 12 Location: COATBRIDGE

I have found the one on the exhaust but can't tell if its open or closed do you have to remove it??
Having bother finding the one next to the intercooler tho.

jonkem · Posted: Mon Apr 16, 2007 20:29 Post subject:

I'd open the joint on the exhaust one and if possible remove the flap totally (they are more trouble than they are worth). Your 3.1 is very late but should be the same as this one: The actuator has the number 2 arrowed to it.

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1994 KZJ70 Cruiser (currently filling the garage and causing some head scratching)
1988 MKI 3.1td Hybrid Van (Ex Bobtail)
1991 SWB Fronty 2.8td Hybrid
2000 Astra Estate (work)
2006 VXR Astra
MK1 SR Nova

simmyboy · * Joined: 15 Apr 2007 Posts: 12 Location: COATBRIDGE

Thanks for the excellent diagram unfortunately mine is slightly different it does not have the actuator shown, the small pipe on mine goes straight into the intercooler. I will see how it goes tomorrow with the new radiator. If its still overheating I will get the flap in the exhaust looked at.

jonkem · Posted: Mon Apr 16, 2007 20:59 Post subject:

The pipe connected to the intercooler is a pressure pipe to advance the fueling (just for future reference) Smile

_________________
1994 KZJ70 Cruiser (currently filling the garage and causing some head scratching)
1988 MKI 3.1td Hybrid Van (Ex Bobtail)
1991 SWB Fronty 2.8td Hybrid
2000 Astra Estate (work)
2006 VXR Astra
MK1 SR Nova