Overheating 1999 Discovery 2

[the99er]

My 1999 Discovery 2 is overheating. It will overheat just sitting at idle. I dont think the heater is working. Help!

[Eric Tyrrell]

Did you check the coolant level?

On Mar 30, 2014, at 12:16 PM, the99er <kappa...@gmail.com> wrote:

My 1999 Discovery 2 is overheating. It will overheat just sitting at idle. I dont think the heater is working. Help!

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[Benyamin]

Could be thermostat. Same thing happened on my 2001 4.6 hse. Also could be the heater core o rings leaking  

Benny

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[the99er]

The coolant level is good,but I haven't checked the thermostat.  Do you know where I could pick up a thermostat if I need a new one?

[Benyamin]

Any auto parts store. They have to order it but only takes a day or 2. Got mine from napa in Phoenix  

Benny

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[Bill Riter]

Not to question anyone but I assume you checked the obvious things like belt, fan clutch, and electric fan? 

Usually a gradual heat up from cold to hot with no drops or spikes is a result of an obstruction or lack of circulation. The heater system comes directly off the pump. The heater core is the highest point in the system for a reason. First it is not essential for engine operation and second most drivers will notice lack of heat before they notice the system is low on coolant. My guess is the system is low and interior heat is the symptom. As is an overheat condition. However there may be two issues. Perhaps the engine overtemped losing coolant now no heat. 

My two cents. 

Bill

 

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