Question about 1997 Oldsmobile 88

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Where is the thermostat on a 1997 Oldsmobile 88 3.8 v6 engine

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While standing at the front of the vehicle, look to the right side of the radiator to find a large hose connected to the radiator. It will lead you to the thermostat housing. The thermostat is located inside the metal pipe at the other end of the hose. Exact mounting details vary with model year. Generally, there are two bolts, one above and one below the housing that must be removed to access the thermostat. The heat shield on some models for the exhaust crossover pipe partially blocks access to the bolt heads, so some tricky tools are needed to remove it. On mine, I removed the EGR sensor and heat shield so I could access the bolt heads. Once removed, the thermostat is very simple to replace.If the thermostat is located on top you may have to take off the altenator tension bracket.

Posted on Mar 13, 2011


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