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Thermostats
Oldsmobile Delta 88

How do you replace the thermostat on a 1988 Delta 88 Royale?

535455
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2011-09-15 11:18:16
2011-09-15 11:18:16

You need to pull the upper radiator hose from the engine (not from the radiator). The little round bugger w/ a spring on it in the hole from the radiator connection should be your thermostat. Pull it, drop in a new one, and then re-attacth the hose to your engine. You may have to pull the plastic "3800" molding off your motor to expose where the hose connects to the motor. Just a warning, the hose is a bit stubborn about getting back on...

--Eric

3.8L V8

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