C4 cooling

I need some help. 1990 c4, temp is good when driving but when idling
the temp begins to rise and almost overheats. No leaks, replaced all
seals and gaskets, changed thermostat. Water pump appears to be
working but not well, no leaks from weep holes. Is the pump starting
to fail but no symptoms? What do you think? I plan to change the pump
out this week end, I am wondering if I am overlooking something.

Thanks
Joe

Did you bleed the air out of the system?

--
Charlie
!993 Corvette Convertible
> wrote in message ...
I need some help. 1990 c4, temp is good when driving but when idling
the temp begins to rise and almost overheats. No leaks, replaced all
seals and gaskets, changed thermostat. Water pump appears to be
working but not well, no leaks from weep holes. Is the pump starting
to fail but no symptoms? What do you think? I plan to change the pump
out this week end, I am wondering if I am overlooking something.

Thanks
Joe


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How do you do that?

'94 Cpe
"Charlie" > wrote in message ...
Did you bleed the air out of the system?

--
Charlie
!993 Corvette Convertible
> wrote in message ...
I need some help. 1990 c4, temp is good when driving but when idling
the temp begins to rise and almost overheats. No leaks, replaced all
seals and gaskets, changed thermostat. Water pump appears to be
working but not well, no leaks from weep holes. Is the pump starting
to fail but no symptoms? What do you think? I plan to change the pump
out this week end, I am wondering if I am overlooking something.

Thanks
Joe


---
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Mine has a bleeder screw at the front of the engine on the thermostat housing. After you warm it up, put a rag under the area and open it a little and let the air out a few times until air stops coming out and the fluid comes out steady. Some systems have 2 bleeder screws, check your book. I thought mine did, but couldn't find the second one where they said it should be located.

--
Charlie
!993 Corvette Convertible
"Charles L. Cotton" > wrote in message ...
How do you do that?

'94 Cpe
"Charlie" > wrote in message ...
Did you bleed the air out of the system?

--
Charlie
!993 Corvette Convertible
> wrote in message ...
I need some help. 1990 c4, temp is good when driving but when idling
the temp begins to rise and almost overheats. No leaks, replaced all
seals and gaskets, changed thermostat. Water pump appears to be
working but not well, no leaks from weep holes. Is the pump starting
to fail but no symptoms? What do you think? I plan to change the pump
out this week end, I am wondering if I am overlooking something.

Thanks
Joe


---
Outgoing mail is certified Virus Free.
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HTML blows goats.

"Charlie" > wrote:
> This is a multi-part message in MIME format.
>
> ------=_NextPart_000_0DC6_01C485FE.2B79DA90
> Content-Type: text/plain;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
>
> Mine has a bleeder screw at the front of the engine on the thermostat =
> housing. After you warm it up, put a rag under the area and open it a =
> little and let the air out a few times until air stops coming out and =
> the fluid comes out steady. Some systems have 2 bleeder screws, check =
> your book. I thought mine did, but couldn't find the second one where =
> they said it should be located.
>
> --=20
> Charlie
> !993 Corvette Convertible
> "Charles L. Cotton" > wrote in message =
> ...
> How do you do that?
>
> '94 Cpe
> "Charlie" > wrote in message =
> ...
> Did you bleed the air out of the system? =20
>
> --=20
> Charlie
> !993 Corvette Convertible
> > wrote in message =
> ...
> I need some help. 1990 c4, temp is good when driving but when =
> idling
> the temp begins to rise and almost overheats. No leaks, replaced =
> all
> seals and gaskets, changed thermostat. Water pump appears to be
> working but not well, no leaks from weep holes. Is the pump =
> starting
> to fail but no symptoms? What do you think? I plan to change the =
> pump
> out this week end, I am wondering if I am overlooking something.
>
> Thanks
> Joe
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.737 / Virus Database: 491 - Release Date: 8/13/2004
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.737 / Virus Database: 491 - Release Date: 8/15/2004
> ------=_NextPart_000_0DC6_01C485FE.2B79DA90
> Content-Type: text/html;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
> <HTML><HEAD>
> <META http-equiv=3DContent-Type content=3D"text/html; =
> charset=3Diso-8859-1">
> <META content=3D"MSHTML 6.00.2800.1458" name=3DGENERATOR>
> <STYLE></STYLE>
> </HEAD>
> <BODY bgColor=3D#ffffff>
> <DIV><FONT face=3DArial>Mine has a bleeder screw at the front of the =
> engine on the=20
> thermostat housing.&nbsp; After you warm it up, put a rag under the area
> = and=20
> open it a little and let the air out a few times until air stops coming =
> out and=20
> the fluid comes out steady.&nbsp; Some systems have 2 bleeder screws, =
> check your=20
> book.&nbsp; I thought mine did, but couldn't find the second one where =
> they said=20
> it should be located.</FONT></DIV>
> <DIV><BR>-- <BR>Charlie<BR>!993 Corvette Convertible</DIV>
> <BLOCKQUOTE dir=3Dltr=20
> style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
> BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
> <DIV>"Charles L. Cotton" &lt;<A=20
> =
> ">charles@c ottonfamily.com</A>&gt;
> =
> wrote=20
> in message <A=20
> =
> " >news:CYTUc.2498$Jn5.23
> = </A>...</DIV>
> <DIV><FONT face=3DArial size=3D2>How do you do that?</FONT></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT face=3DArial size=3D2>'94 Cpe</FONT></DIV>
> <BLOCKQUOTE dir=3Dltr=20
> style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
> BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
> <DIV>"Charlie" &lt;<A=20
> =
> ">cpappas@hou ston.rr.com</A>&gt; =
> wrote in=20
> message <A=20
> =
> m">news:T6AUc.20097$nu2
> = </A>...</DIV>
> <DIV><FONT face=3DArial>Did you bleed the air out of the =
> system?&nbsp;=20
> </FONT></DIV>
> <DIV><BR>-- <BR>Charlie<BR>!993 Corvette Convertible</DIV>
> <BLOCKQUOTE=20
> style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
> BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
> <DIV>&lt;<A =
> </A>&gt; wrote=20
> in message <A=20
> =
> href=3D"news:6sg5i0thl0qhonpvkj62ovg4akql5sjfgs@4a x.com">news:6sg5i0thl0q
> = </A>...</DIV>
> <DIV>I need some help. 1990 c4, temp is good when driving but when
> =
>
> idling<BR>the temp begins to rise and almost overheats. No leaks, =
> replaced=20
> all<BR>seals and gaskets, changed thermostat. Water pump appears =
> to=20
> be<BR>working but not well, no leaks from weep holes. Is the&nbsp;
> = pump=20
> starting<BR>to fail but no symptoms? What do you think? I plan to =
> change=20
> the pump<BR>out this week end, I am wondering if I am
> overlooking=20 something.<BR><BR>Thanks<BR>&nbsp;Joe</DIV>
> <DIV>&nbsp;</DIV>
> <DIV><BR>---<BR>Outgoing mail is certified Virus Free.<BR>Checked =
> by AVG=20
> anti-virus system (<A=20
> =
> href=3D"http://www.grisoft.com">http://www.grisoft.com</A>).<BR>Version:
> =
>
> 6.0.737 / Virus Database: 491 - Release Date: 8/13/2004</DIV>
> <DIV>&nbsp;</DIV>
> <DIV><BR>---<BR>Outgoing mail is certified Virus Free.<BR>Checked =
> by AVG=20
> anti-virus system (<A=20
> =
> href=3D"http://www.grisoft.com">http://www.grisoft.com</A>).<BR>Version:
> =
>
> 6.0.737 / Virus Database: 491 - Release Date:=20
> 8/15/2004</DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
>
> ------=_NextPart_000_0DC6_01C485FE.2B79DA90--

Good, then you can blow my goat, he won't mind.

--
Charlie
!993 Corvette Convertible
"Steveo" > wrote in message ...
HTML blows goats.

"Charlie" > wrote:
> This is a multi-part message in MIME format.
>
> ------=_NextPart_000_0DC6_01C485FE.2B79DA90
> Content-Type: text/plain;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
>
> Mine has a bleeder screw at the front of the engine on the thermostat =
> housing. After you warm it up, put a rag under the area and open it a =
> little and let the air out a few times until air stops coming out and =
> the fluid comes out steady. Some systems have 2 bleeder screws, check =
> your book. I thought mine did, but couldn't find the second one where =
> they said it should be located.
>
> --=20
> Charlie
> !993 Corvette Convertible
> "Charles L. Cotton" > wrote in message =
> ...
> How do you do that?
>
> '94 Cpe
> "Charlie" > wrote in message =
> ...
> Did you bleed the air out of the system? =20
>
> --=20
> Charlie
> !993 Corvette Convertible
> > wrote in message =
> ...
> I need some help. 1990 c4, temp is good when driving but when =
> idling
> the temp begins to rise and almost overheats. No leaks, replaced =
> all
> seals and gaskets, changed thermostat. Water pump appears to be
> working but not well, no leaks from weep holes. Is the pump =
> starting
> to fail but no symptoms? What do you think? I plan to change the =
> pump
> out this week end, I am wondering if I am overlooking something.
>
> Thanks
> Joe
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.737 / Virus Database: 491 - Release Date: 8/13/2004
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.737 / Virus Database: 491 - Release Date: 8/15/2004
> ------=_NextPart_000_0DC6_01C485FE.2B79DA90
> Content-Type: text/html;
> charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
>
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
> <HTML><HEAD>
> <META http-equiv=3DContent-Type content=3D"text/html; =
> charset=3Diso-8859-1">
> <META content=3D"MSHTML 6.00.2800.1458" name=3DGENERATOR>
> <STYLE></STYLE>
> </HEAD>
> <BODY bgColor=3D#ffffff>
> <DIV><FONT face=3DArial>Mine has a bleeder screw at the front of the =
> engine on the=20
> thermostat housing.&nbsp; After you warm it up, put a rag under the area
> = and=20
> open it a little and let the air out a few times until air stops coming =
> out and=20
> the fluid comes out steady.&nbsp; Some systems have 2 bleeder screws, =
> check your=20
> book.&nbsp; I thought mine did, but couldn't find the second one where =
> they said=20
> it should be located.</FONT></DIV>
> <DIV><BR>-- <BR>Charlie<BR>!993 Corvette Convertible</DIV>
> <BLOCKQUOTE dir=3Dltr=20
> style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
> BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
> <DIV>"Charles L. Cotton" &lt;<A=20
> =
> ">charles@c ottonfamily.com</A>&gt;
> =
> wrote=20
> in message <A=20
> =
> " >news:CYTUc.2498$Jn5.23
> = </A>...</DIV>
> <DIV><FONT face=3DArial size=3D2>How do you do that?</FONT></DIV>
> <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
> <DIV><FONT face=3DArial size=3D2>'94 Cpe</FONT></DIV>
> <BLOCKQUOTE dir=3Dltr=20
> style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
> BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
> <DIV>"Charlie" &lt;<A=20
> =
> ">cpappas@hou ston.rr.com</A>&gt; =
> wrote in=20
> message <A=20
> =
> m">news:T6AUc.20097$nu2
> = </A>...</DIV>
> <DIV><FONT face=3DArial>Did you bleed the air out of the =
> system?&nbsp;=20
> </FONT></DIV>
> <DIV><BR>-- <BR>Charlie<BR>!993 Corvette Convertible</DIV>
> <BLOCKQUOTE=20
> style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
> BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
> <DIV>&lt;<A =
> </A>&gt; wrote=20
> in message <A=20
> =
> href=3D"news:6sg5i0thl0qhonpvkj62ovg4akql5sjfgs@4a x.com">news:6sg5i0thl0q
> = </A>...</DIV>
> <DIV>I need some help. 1990 c4, temp is good when driving but when
> =
>
> idling<BR>the temp begins to rise and almost overheats. No leaks, =
> replaced=20
> all<BR>seals and gaskets, changed thermostat. Water pump appears =
> to=20
> be<BR>working but not well, no leaks from weep holes. Is the&nbsp;
> = pump=20
> starting<BR>to fail but no symptoms? What do you think? I plan to =
> change=20
> the pump<BR>out this week end, I am wondering if I am
> overlooking=20 something.<BR><BR>Thanks<BR>&nbsp;Joe</DIV>
> <DIV>&nbsp;</DIV>
> <DIV><BR>---<BR>Outgoing mail is certified Virus Free.<BR>Checked =
> by AVG=20
> anti-virus system (<A=20
> =
> href=3D"http://www.grisoft.com">http://www.grisoft.com</A>).<BR>Version:
> =
>
> 6.0.737 / Virus Database: 491 - Release Date: 8/13/2004</DIV>
> <DIV>&nbsp;</DIV>
> <DIV><BR>---<BR>Outgoing mail is certified Virus Free.<BR>Checked =
> by AVG=20
> anti-virus system (<A=20
> =
> href=3D"http://www.grisoft.com">http://www.grisoft.com</A>).<BR>Version:
> =
>
> 6.0.737 / Virus Database: 491 - Release Date:=20
> 8/15/2004</DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
>
> ------=_NextPart_000_0DC6_01C485FE.2B79DA90--


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I see what you mean Charlie. My '94 Service Manual (Pg. 6B-27; Fig. 31) shows two, but I suspect it really means they are alternative locations. Mine only has one on the thermostate housing and (this may be stretching) the description says "Air Bleed Valve" not valves plural. Anyway, from the drawing, I can't see why there would be two at that location. The one on the thermostate housing seems to be at the highest point in the system as well.

Thanks,
Chas.
"Charlie" > wrote in message ...
Mine has a bleeder screw at the front of the engine on the thermostat housing. After you warm it up, put a rag under the area and open it a little and let the air out a few times until air stops coming out and the fluid comes out steady. Some systems have 2 bleeder screws, check your book. I thought mine did, but couldn't find the second one where they said it should be located.

--
Charlie
!993 Corvette Convertible
"Charles L. Cotton" > wrote in message ...
How do you do that?

'94 Cpe
"Charlie" > wrote in message ...
Did you bleed the air out of the system?

--
Charlie
!993 Corvette Convertible
> wrote in message ...
I need some help. 1990 c4, temp is good when driving but when idling
the temp begins to rise and almost overheats. No leaks, replaced all
seals and gaskets, changed thermostat. Water pump appears to be
working but not well, no leaks from weep holes. Is the pump starting
to fail but no symptoms? What do you think? I plan to change the pump
out this week end, I am wondering if I am overlooking something.

Thanks
Joe


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.737 / Virus Database: 491 - Release Date: 8/13/2004


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.737 / Virus Database: 491 - Release Date: 8/15/2004

Glad I could be of help.

--
Charlie
!993 Corvette Convertible
"Charles L. Cotton" > wrote in message ...
I see what you mean Charlie. My '94 Service Manual (Pg. 6B-27; Fig. 31) shows two, but I suspect it really means they are alternative locations. Mine only has one on the thermostate housing and (this may be stretching) the description says "Air Bleed Valve" not valves plural. Anyway, from the drawing, I can't see why there would be two at that location. The one on the thermostate housing seems to be at the highest point in the system as well.

Thanks,
Chas.
"Charlie" > wrote in message ...
Mine has a bleeder screw at the front of the engine on the thermostat housing. After you warm it up, put a rag under the area and open it a little and let the air out a few times until air stops coming out and the fluid comes out steady. Some systems have 2 bleeder screws, check your book. I thought mine did, but couldn't find the second one where they said it should be located.

--
Charlie
!993 Corvette Convertible
"Charles L. Cotton" > wrote in message ...
How do you do that?

'94 Cpe
"Charlie" > wrote in message ...
Did you bleed the air out of the system?

--
Charlie
!993 Corvette Convertible
> wrote in message ...
I need some help. 1990 c4, temp is good when driving but when idling
the temp begins to rise and almost overheats. No leaks, replaced all
seals and gaskets, changed thermostat. Water pump appears to be
working but not well, no leaks from weep holes. Is the pump starting
to fail but no symptoms? What do you think? I plan to change the pump
out this week end, I am wondering if I am overlooking something.

Thanks
Joe


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.737 / Virus Database: 491 - Release Date: 8/13/2004


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.737 / Virus Database: 491 - Release Date: 8/15/2004

Before you spend any more time and money, what makes you think it is
overheating? A C4 can easily go to 230 when sitting at idle on a hot
day. This is normal.

Dale
Still Corvetteless after 3 months. ARGH!!!

On or about Wed, 18 Aug 2004 02:50:58 GMT, wrote or
did cause to be written:

>I need some help. 1990 c4, temp is good when driving but when idling
>the temp begins to rise and almost overheats. No leaks, replaced all
>seals and gaskets, changed thermostat. Water pump appears to be
>working but not well, no leaks from weep holes. Is the pump starting
>to fail but no symptoms? What do you think? I plan to change the pump
>out this week end, I am wondering if I am overlooking something.
>
>Thanks
> Joe

Dale,

Thanks for your reply. I wasn't aware 230 was normal. I thought that
was hot. Why the huge fluctuation in temp when idling?

Thanks

Joe


On Wed, 18 Aug 2004 12:27:40 GMT, Dale > wrote:

>Before you spend any more time and money, what makes you think it is
>overheating? A C4 can easily go to 230 when sitting at idle on a hot
>day. This is normal.
>
>Dale
>Still Corvetteless after 3 months. ARGH!!!
>
>On or about Wed, 18 Aug 2004 02:50:58 GMT, wrote or
>did cause to be written:
>
>>I need some help. 1990 c4, temp is good when driving but when idling
>>the temp begins to rise and almost overheats. No leaks, replaced all
>>seals and gaskets, changed thermostat. Water pump appears to be
>>working but not well, no leaks from weep holes. Is the pump starting
>>to fail but no symptoms? What do you think? I plan to change the pump
>>out this week end, I am wondering if I am overlooking something.
>>
>>Thanks
>> Joe