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== == You take it to the dealer and pay the piper. This repair requires you to take off the exhaust manifold and tear down into the engine. That means retorking to spec, gaskets, the whole mess. Read the posts and see how many do-it-yourselfers ended up with an exhaust smell (leak) after the repair with the heater on. Unfortunately it will set you back an honest $750. Uhk. Just another stupid design by GM! I will buy foreign next time!

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Q: How do you Install a Thermostat in a 2003CTS Cadillac?
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