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| Cavalier Problem Diagnosis Got a problem you can't fix? We can help. |
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#1
09-04-2010, 05:32 PM
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Best way to fill - purge cooling system
What's the best way to fill the cooling system. I took the upper hose and am filling it from there. I let the water fill until it comes out from the connecting pipe running across the front of the engine. But how do I purge out all the air?
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#2
09-13-2010, 11:46 AM
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Re: Best way to fill - purge cooling system
Model year would help here. Please post back.
First park the car on an incline, nose upor drive it up onto a set of ramps. In general, most vehicles have a radiator cap you can unscrew and fill there when the engine is cold. Fill it almost to the top, then squeeze the upper radiator hose slowly to expel air that usually gets trapped. Repeat this until no more bubbles come out, the coolant level will just rise and fall with the squeezes. Then cap the radiator, fill the reservoir, and start the engine and run it until the upper hose starts to get hot. If you take it for a drive to warm it up, make sure to park it on an incline. Then turn it off. Let the coolant in the tank be sucked in as the engine cools. This may take a few iterations in some cases if the reservoir runs dry. If you don't have a radiator cap (rare but some don't) you'll have to fill as best you can from the upper hose (or through the reservoir which could be slow), then replace the hose, and continue as above with filling the reservoir, running the engine, etc. Good luck!
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Current Garage: 2009 Honda CR-V EX 2006 Mazda 3i 2004 Chevrolet Silverado 2500HD 2003 GMC Envoy XL 2000 Honda ST1100 2000 Pontiac Sunfire Vehicle History: 2003 Pontiac Vibe AWD - 1999 Acura Integra GS - 2004 4.7L Dakota Quad Cab 4x4 - 1996 GMC Jimmy 4wd - 1995 Chevrolet C2500 - 1992 Toyota Camry LE 2.2L - 1992 Chevrolet S10 Ext. Cab 4.3L - 1995 Honda ST1100 - 1980 Yamaha XS400 - 1980 Mercury Bobcat. Last edited by jdmccright; 09-13-2010 at 11:55 AM. Reason: Yet more added info
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#3
09-13-2010, 03:58 PM
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Re: Best way to fill - purge cooling system
Thanks for replying. Seems this site is a bit quiet these days? Mine is a 1999 Cavalier, 2.2L
Only cap is the resevoir tank. Why chevy got cheap on this car? So far, I've still been working on getting the engine running. Lots of problems and points to the PCM which I get my new one tomorrow. I've been filling it by disconnecting the upper hose, filling it until it runs out the tube it joins. When I do run the engine, it does suck the reservoir water out. So slow. Seems semi full but not at operating temp yet so not really filling the block then due to the Tstat? If I have to replace the radiator sometime, I'll look to get a capped one. Or put a cap somewhere on the upper hose.
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