Head gasket on 2002 Chevrolet Astro

Over heats but dosen't lose water.Dose it need a head gasket and how much would it cost. ctc235@yahoo.com

by in Winchester, MA on April 20, 2011
3 answers
ANSWER by on April 20, 2011
The most accurate way to test for a blown head gasket on a gasoline engine is to test for the presence of carbon monoxide in the cooling system. Snap-On, Matco (part # CO 2000), and Napa sell a tool to check to carry out this test. Another link to a supplier of this tool is http://www.etoolcart.com/combustion-leak-detector-lis75500.aspx. Carbon Monoxide is only present if there is a blown head gasket or cracked cylinder head. http://www.arrowheadradiator.com/head_gasket_or_combustion_leak_test.htm I think the Napa part number 700-1006. http://www.blockchek.com/instructions.htm . Signs of a blown head gasket are coolant loss (frequently have to top up the coolant level of the engine without seeing an obvious leak), experiencing over heating or rough engine running or the presence of white sweet smelling steam from the exhaust. A badly blown head gasket may allow engine coolant and oil to mix. For price of repair check the estimator link https://repairpal.com/estimator?car_type_id=3353
ANSWER by on September 06, 2014
thermostat ,blown head gasket will cause a missfire and more than likely leak coolant !!
ANSWER by on February 05, 2015
Head gaskets are almost never an issue on this engine. A blown gasket or cracked head will definitely lose coolant, and probably cause huge exhaust smoke as well. You need to check for a stuck thermostat, plugged radiator, and common things like that first. Radiators get plugged both internally with sludge and externally with dirt, leaves, and fluff, especially between the a/c condenser where it can be hard to see. I've seen many cars that run hot, and when you pull the radiator it's totally plugged with dirt, fluff, etc.
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