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Joel
Joel, Auto technician
Category: Chevy
Satisfied Customers: 1599
Experience:  GM, ASE Certified Technician. Chevy, Buick, Pontiac, Olds. Over 18 Years experience and growing.
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2000 chevy venture: sending unit..thermostat..hose..same problem

Customer Question

I have a 2000 chevy venture with the 3400 v6 engine... my cooling system keeps getting accessive air in it so it runs hot and stops blowing heat through the heater... have replaced the temp. sending unit, thermostat, and one radiater hose... the fliud level is fine.. if i bleeout the access air its fine for about a day then it will go back to the same problem... what should i try next?
Submitted: 4 years ago.
Category: Chevy
Expert:  Joel replied 4 years ago.

Hello and welcome.

Another possibility is a head gasket problem.

This engine in know for the rear headgasket to blow and cause overheating. A blown gasket can cause combustion gases to be forced into the cooling system causing air pockets. Air pockets will cause the roblems you are having.

Suggest a a cooling system pressure test.

Removing spark plugs and inspecting for signs of burning coolant would show this problem.

 

Joel, Auto technician
Category: Chevy
Satisfied Customers: 1599
Experience: GM, ASE Certified Technician. Chevy, Buick, Pontiac, Olds. Over 18 Years experience and growing.
Joel and 10 other Chevy Specialists are ready to help you
Customer: replied 4 years ago.
thats not what i was hoping to hear... But i bet you are right! thank you...
Expert:  Joel replied 4 years ago.

Ya, nobody likes to hear that, but it is quite probable.

Good luck.

 

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