Question about 2001 Chevrolet Express

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2001 Cheverolet Express - with heater on, water sound in dash

Seems like I'm loosing fluid from the radiator, but never see any puddles or leaks. WIth the heater on, you can hear the sound of water in the dash in front of the passenger seat - but never see puddles under the car. What is the best way to see what is going on here? Temp guage looks fine.

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  • Steve Stewart Nov 26, 2008

    Well there's good news and bad news. The good news is with the pressure tester we found the leak. The bad news is that it is the intake manifold gasket. Under pressure it showed the leak. The reason we never saw any signs on the ground is that it would puddle up on top of the engine and then burn off. Now we are look at $600 plus repair job.

  • Steve Stewart Dec 09, 2008

    Had the pressure test done - they found a leaking manifold intake gasket - now $650 later, my van is not leaking, but my wallet is! The reason I never saw any signs is that the leak was on the top of the engine. It only leaked when hot and then the fluid burned off.

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Ask mechanic to put green anti freeze into your water and use a radiator pressure tester to find the leak while the car is stationary.The pressure tester is a bit pricey to buy for a one off test so radiator repair workshop probably best place to get test done.Green anti freeze is easy to see when it leaks,like a tracer dye.Good luck

Posted on Nov 22, 2008

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