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Super Moderator
2010 DTS
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89,269 Posts
Thermostat and water pump belt tensioner are certainly worth checking, but you would surely hope the dealer checked all the possibilities before diagnosing the head gaskets.
 

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Super Moderator
2010 DTS
Joined
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89,269 Posts
sdpj said:
thanks, you guys are awesome. how could i tell if the radiator cap is bad, actually i assume you guys mean the purge tank cap. ranger, i have checked the purge line, that was one of the first things you told me to do, its good to go. also can i flush the radiator out myslef or do i need to take it somewhere. hopefully its something simple. ill see what i can do.
Sorry, I forget what I told who to do :bonkers:.
Actually you can have the cap checked. Most shops have a hand held cooling system pump. They come with adapters to test the caps. I would doubt if anyone would even charge you for it.

Flushing it is simple. Just pull both radiator hoses, stick a garden hose in the upper, seal it with your hand and turn it on. Not a bad idea to reverse the flow. The more pressure and flow the better.
 
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