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68gmsee · 06-21-2010, 09:15 AM

You didn't say whether the temp gauge showed hot or normal so I'm assuming that radiator temp was not your concern. Smoke on the exhaust manifold is fairly normal if the engine has been worked on and there is oil or solvent residue on it. However, be sure and check to make sure your valve covers aren't leaking somewhere. You may need to run the truck longer to burn any solvents or oil residue off.

There was no engine oil cooler on these trucks unless someone added one afterwards. They did have an automatic transmission fluid cooler on the radiator, though. You probably have an automatic trans radiator.

06-21-2010, 09:15 AM	#3
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Motor running hot You didn't say whether the temp gauge showed hot or normal so I'm assuming that radiator temp was not your concern. Smoke on the exhaust manifold is fairly normal if the engine has been worked on and there is oil or solvent residue on it. However, be sure and check to make sure your valve covers aren't leaking somewhere. You may need to run the truck longer to burn any solvents or oil residue off. There was no engine oil cooler on these trucks unless someone added one afterwards. They did have an automatic transmission fluid cooler on the radiator, though. You probably have an automatic trans radiator.