Question about 2003 Buick Rendezvous

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Where is the thermostat on a 2003 rendez-vous

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If you have the 3400 engine it is on the left [drivers] end of the engine and is between the end of the intake manifold and the exhaust cross-over pipe. Just follow the radiator hose from the radiator to the engine on that side and you'll find the housing at the engine end of the hose. I'ts a tough one to get out as the exhaust pipe and throttle body are in the way but it will come out. It's also very easy for the thermostat to get out of place when trying to get the housing, thermostat, and bolts back in that tight spot so you have to keep a close watch on everything to be sure it all gets put back together properly so it won't leak. Hope this helps!

Posted on Jul 12, 2010

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Posted on Jan 02, 2017

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2003 Buick Rendezous

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