Guest Posted January 24, 2001 Share Posted January 24, 2001 If you have a GM car with an 88 model year 3800 you need to get a 89-and up thermostat goose neck housing. The previous design allows coolant to leak past the thermostat therefore the engine won't get hot enough to burn up condensation effectively: YOU WILL HAVE very BLACK OIL. The dealer doesn't have this part, go to a junk yard and find a wrecked 3800 from '89 and up and fix the problem. GM discover the problem and fixed it in '89 and up.<P> Link to comment Share on other sites More sharing options...
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