Question about 1993 Chevrolet Lumina APV

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Thermostat friend put a thermostat in, but not sure if even in right location. found a picture for a 95, but not sure if they are the same. now the upper hose to where he put the thermostat is colapsed. now he wants to just leave thermostat out. can you please tell me 1) why is upper radiator hose collapsed (new hose). 2) can you send me a link of a picture to where thermostat goes on a 93 V6 lumina? Any help would be greatly appreciated

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The thermostat goes in with the dome roundish part facing out of the motor if the hose is collapsed either thermostat is backwards or the sytem has air trapped make sure thermostat is in right run vehicle with heater on high radiator cap on once thermostat opens shutdown with a rag release pressure take cap off start backup while running top off have somone idle up vehicle slightly make sure heat is present while idle is slightly increased top radiator put cap on release idle

Posted on Sep 13, 2008

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If the hose has collapsed, most likely the thermostat was put in backwards reversing pressure. There is only one place the thermostat goes. Follow the top radiator hose to the top of the engine block. It will have a round clamp holding it onto an aluminum housing, usually held on by two bolts. On a cold engine, first drain the radiator and squeeze the hose till you don't hardly hear any gurgling noise, unbolt the screws holding the housing, you don't have to take the hose off the clamp. You'll need the new thermostat and gasket for it. Not sure of the type, go to your local parts store and give them the specs on your vehicle. Engine size, how many cylinders, if it has a/c or not. Most likely some engines take a 185 degree thermostat or higher. They'll tell you this. Make sure you remove the old gasket remains from the engine block and the housing before installing the new gasket and thermostat. Use a putty knife. Once it's replaced, refill the radiator. Start the vehicle and wait for it to warm up, watch your temp. gauge or light and turn on the heater all the way up to you feel heat. Approximately 10 minutes tops. Watch the hose if it collapses again or not. You should be good aftger that.

Posted on Sep 13, 2008


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