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>The first noise sounds as if the coolant is boiling. The sound is =
coming from the >coolant hose running from the back of the cylinder head =
into the fire wall. This >particular coolant pipe has a t-piece which =
runs into the throttle body. My >temperate gauge registers normal =
operating temperature, as well as my oil >temperature<snip>
The coolant may very well indeed be boiling, and it could be a direct =
result of a bad coolant reservoir cap. The pressure relief valve on mine =
went bad and it would boil, pressurize and then finally leak out of the =
vent hole. Try a new one if your car has similar symptoms.
The other sound may be the auxillary coolant pump which comes on after =
you shut the car off. This pump runs automatically so as to keep coolant =
flowing through the radiator when and if the fan comes on. Hope this =
helps.
Tommy Fletcher
'92 corrado SLC "why o why did _I_ have to get an OBD1 edition?"
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<DIV><FONT face=3DArial size=3D2><FONT color=3D#000000 size=3D2>>The =
first noise=20
sounds as if the coolant is boiling. The sound is coming from the =
>coolant=20
hose running from the back of the cylinder head into the fire wall. This =
>particular coolant pipe has a t-piece which runs into the throttle =
body. My=20
>temperate gauge registers normal operating temperature, as well as =
my oil=20
>temperature<snip></FONT></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>The coolant may very well indeed be =
boiling, and it=20
could be a direct result of a bad coolant reservoir cap. The pressure =
relief=20
valve on mine went bad and it would boil, pressurize and then finally =
leak out=20
of the vent hole. Try a new one if your car has similar=20
symptoms.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>The other sound may be the auxillary =
coolant pump=20
which comes on after you shut the car off. This pump runs automatically =
so as to=20
keep coolant flowing through the radiator when and if the fan comes on. =
Hope=20
this helps.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Tommy Fletcher</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>'92 corrado SLC "why o why did _I_ have =
to get an=20
OBD1 edition?"</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV></BODY></HTML>
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Tue Jun 22 02:39 CDT 1999
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