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Bob Bezubiak (Bbezubiak)
New Member
Username: Bbezubiak

Post Number: 3
Registered: 02-2003
Posted on Tuesday, March 11, 2003 - 01:39 am:   Edit Post Delete Post Print Post

Have a '95 Disco and live on the Pacific Northwest. Winter has been fairly miled but has cooled the last number of days. When it's cool I notice it takes some time for the engine to warm-up (1/2hr.) I also note that the temp will fluctuate (go down) if driving fast or going down the hill. Water pump has been replaced about a year ago. Anyb idea what this might?

Thanks..............Bob.
 

Land Rover Certified Used A**hole (Jason)
Senior Member
Username: Jason

Post Number: 360
Registered: 04-2002
Posted on Tuesday, March 11, 2003 - 01:47 am:   Edit Post Delete Post Print Post

Temp would go down when driving fast because more air is passing through the radiator than the cooling fan is pulling in...thus, this greater air-flow above what the fan via the viscous clutch would pull in aids the cooling. Going downhill...similar concept, but now your engine is not working as hard, therefore not producing as much heat.
It works the opposite, too. LR recommends not to idle the vehicle for extended periods of time because at the low idle RPM, eventhough the engine is not working hard, the cooling fan is not pulling enough air across the radiator to provide adequate cooling.

As far as the extended engine warm-up, when's the last time you checked or replaced your thermostat? Obviously if you are not running a t-stat or it is stuck open (what's the chances of that???), warm-up will take longer.
 

Bob Foster (Coppertop)
Member
Username: Coppertop

Post Number: 65
Registered: 12-2002
Posted on Tuesday, March 11, 2003 - 07:33 am:   Edit Post Delete Post Print Post

I would look to the thermostat first. The good thing is that it should be a fairly cheap item to replace.
 

Mike Rupp (Mike_rupp)
Member
Username: Mike_rupp

Post Number: 164
Registered: 02-2002
Posted on Tuesday, March 11, 2003 - 08:48 am:   Edit Post Delete Post Print Post

Most likely your thermostat is stuck open. That would explain why the temp drops when going fast. 1/2 hour to warm up also suggests a stuck thermostat. The other day when it was close to zero F, it still only took my Disco about 1-1.5 miles to fully warm up.
 

charles pastrano (Charles)
Member
Username: Charles

Post Number: 154
Registered: 08-2002
Posted on Tuesday, March 11, 2003 - 10:02 am:   Edit Post Delete Post Print Post

You may need to have your radiator rodded and cleaned or replaced.
 

Paul T. Schram (Paulschram)
Senior Member
Username: Paulschram

Post Number: 1118
Registered: 02-2002
Posted on Tuesday, March 11, 2003 - 10:10 am:   Edit Post Delete Post Print Post

If you have a '95 Disco, you are probably driving on borrowed time before your radiator stops radiating.

Don't do as I did and waste time! Replace the thermostat, pull the radiator and either have it rodded, recored, or replace it. In my case, I was able to find a replacement radiator for less than the cost of recoring locally. It took five tries to get one shipped to me intact, but it was less expensive than recoring.

Peace,
Paul
 

Milan (Milan)
Member
Username: Milan

Post Number: 160
Registered: 10-2002
Posted on Tuesday, March 11, 2003 - 10:58 am:   Edit Post Delete Post Print Post

Wouldn't plugged up radiator or any other flow problem cause the engine to run hot rather than cold?

I have the same problem. Few weeks ago I replaced the tstat and it seemed to go away, then the problem returned. Not as promminent but it's there. I have heat now but the engine runs much cooler than it should. This of course affects the heater as well. Once the engine warms up, the outside temperature should not affect it as much. The fan's viscous coupling seems to work so I don't think it's frozen/stuck. I will check the concentration of my coolant. Any other ideas?

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