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2005 chevrolet z71 loosing coolant with no sign of leaks

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Check the waterpump. You need to look from underneath for signs of leaking. Also check the radiator along the edges of both tanks. Lastly, check the aluminum coolant bypass fitting on the rear of the intake manifold as well as the intake itself in the very back. Th fittings always leak and usually break in half when you try to remove, then you have to drill it out and tap the threads on the intake.

Posted on Apr 28, 2010


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Chevy 2005 cavalier low coolant light keeps coming on and the coolant reservoit tank is empty after only 200 miles. what is causing this?

  1. Check the hoses and clamps going from the reservoir to the radiator and from the radiator to the engine. Make sure they are flexible and in good condition.
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Please have an expert examine this for you but I bet it is the CVC joint too.

Fix it fast enough.

Rate this please

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