Coolant boiling over

kimmykun · Post by **kimmykun** » Tue Jul 03, 2007 10:53 pm

Hey, all. Basicaly, after I shut off the engine, all the coolant sprays out of the radiator cap until it's all pretty much out. This has been happening since Satuday when I had the oil changed. Before that it was perfectly fine. I changed the radiator cap, but that didn't do anything. And the temperature gage doesn't show it overheating either. Any ideas?

quad4gtz · Post by **quad4gtz** » Wed Jul 04, 2007 10:42 pm

You are probably experiencing air in the system or a restriction/flow issue. Run it with the cap off and see if it will boil in the reservoir. Worst case scenario you have the beginnings of head gasket failure.

rweatherford · Post by **rweatherford** » Thu Jul 05, 2007 7:26 am

This doesn't sound good......

I hope this oil change was with a mechanic you trust and have a history with.

docrodg · Post by **docrodg** » Fri Aug 03, 2007 3:39 pm

Check out the overflow hose to the coolant reservoir by pulling it off the filler neck and blowing thru it. A restricted overflow hose can cause the expanded fluid to blow out the cap. Bleed the system by running the engine at 1500 rpm or a little less and adding coolant as it needs. Try to keep it full thee whole time. Then just shut it down and cap the radiator. Hopefully that will do it.

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