Isuzu Trooper Owners Club UK™

itemplarbond · Newbie Joined: 28 May 2006 Posts: 8 Location: NC USA

Should I be worried, 1989 Trooper, petrol, says about 3/4 way up guage, just under the red. I changed the thermostat, fluid looks good, water level is good, fan is working. 75 degrees here in NC USA.
Any ideas? Thanks

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eithan h · Posted: Sun May 28, 2006 12:00 Post subject:

over here the petrols were supposed to have a head retorque every 12,000mls i think otherwise the headgasket goes.

itemplarbond · Newbie Joined: 28 May 2006 Posts: 8 Location: NC USA

thanks, I shall do just that, the head gasket was changed recently.

markymoan · Posted: Sun May 28, 2006 19:17 Post subject:

On most cars 1/2 to 3/4 is normal, if the needle doesnt go into the red i wouldnt worry about it.
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jonkem · Posted: Mon May 29, 2006 12:19 Post subject:

Double check the connection on the sender unit. Remove cable, clean terminal thoroughly & re-fit. Quick free repair if it turns out to be the problem Smile

Fingers crossed.
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dragn3002 · Newbie Joined: 25 Jun 2006 Posts: 1

I own a 96 Trooper and when I drive, the engine is cool(1/4-1/2), but when I stop, the dial goes toward Hot(3/4-Hot). Fluid levels are good. What could be the problem?

Philp · Posted: Sun Jun 25, 2006 8:31 Post subject:

The problem with an engine driven cooling fan (assuming thats what the petrols have) is that it cools the most when you need it least and vice versa. Initially I'd check and clean all the connectiosn to the sender and maybe replace it as they're pretty cheap. I'd rverse flush the radiator and engine with a hosepipe until the water runs clear and then refill with the appropriate mix of coolant and water and see what that does. If it becomes a problem and a test on the head gasket is negative for any problems then I'd consider either changing to an electric fan or fitting a secondary electric one to use when the weather is hot and you're idling or towing etc. This could be mounted as a pusher in front of the rad and just operated via a relay from a simple switch in the cab.
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Phil

96 or is it a 98 Isuzu Bighorn Lotus

dxmedia · Posted: Sun Mar 04, 2007 13:00 Post subject:

Could be a possible issue with the viscous fan (if fitted), may be spinning up, just not fast enough (as in slipping), so there is a cooling effect, just not enough.

Sorry I can't remember how to check viscous fans.... Sad

Chris.

Hard1 · Posted: Sun Mar 04, 2007 22:34 Post subject:

Be careful though, if you catch your hand in it, it can be quite vicious.... Wink

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