Question about Cars & Trucks
I just replace the radiator cup
You could have a leak in the system. get the system pressure tested and checked for leaks. if no leaks are found it could be burning coolant.
Posted on Nov 30, 2014
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Posted on Jan 02, 2017
You have a coolant leak most likely in the heater core. Try disconnecting your heater hoses and coupling them together, then running the engine to see if the leak goes away. If it does, I would have the heater core replaced.
Posted on Dec 28, 2008
you must drain air out of system
so when engine is warmed up, just unscrew slightly the thermo time switch which is the highest sensor and unit in cooling system besides the reservoir, until alittle air releases then when antifreeze starts coming out then retighten to specs. BE VERY CAREFUL !!!! LOOSEN VERY SLOWLY AND NOT COMPLETELY REMOVE FOR THIS CAN CAUSE BURNS. MIGHT WANT TO USE A RAG AROUND SENSOR. If this doesnt solve it then make sure you have the correct rad. cap. Also that the filling hose is not clogged as well as the little port on radiator.
Posted on Feb 19, 2009
If you are seeing coolant on the top side of your engine, it sounds to me like it may be the intake manifold gasket. Does this have the 4.3L engine? If so, this is a common problem with these engines. If the leak is severe enough, the cooling system will not build up the pressure it needs and this will cause it to run hot. Hope this helps.
Posted on Mar 13, 2009
Twice in two years now my Saab 9-5 has had a pin-hole in the oil cooler, which has caused oil to flow into the reservoir. A way to tell is if coolant/oil is coming out of the reservoir cap. The reservoir cap is rated for the pressure of the coolant system, which is significantly lower than the oil pressure. When there is a hole in the oil cooler, oil will be forced out at relatively high pressures, causing the reservoir to fill and then over pressurize and spill out of the cap.
Posted on May 19, 2009
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