Home » Public Forums » GMCnet » Intake manifold leak
| Intake manifold leak [message #186715] |
Mon, 08 October 2012 13:22  |
bhayes
Messages: 263
Registered: March 2010
Karma: 1
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I had the GMC in the shop over the weekend for an oil change, and the tech mentioned that it looks like the engine has an intake manifold leak. There is some coolant that has leaked around the rear of the intake manifold. Can coolant get mixed in with the oil via an intake manifold leak, or vice versa? Is it something that I need to immediately address?
Bryan Hayes
'76 Eleganza II
Salt Lake City, Utah
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| Re: [GMCnet] Intake manifold leak [message #186716 is a reply to message #186715] |
Mon, 08 October 2012 13:45  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Bryan, there is a heater hose connection on the pass side rear of the
intake manifold. There are pipe threads in the manifold that match with a
hose nipple. If that nipple or the hose clamp or the hose at that point is
defective, loose, et al, you could have a water leak. If the manifold
gasket is bad between the head and the manifold, you could also have a
coolant leak that could possibly leak coolant into the intake valley and
the oil pan, but that is not likely. Possible, yes, but not likely.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Mon, Oct 8, 2012 at 11:22 AM, Bryan Hayes <hayesnet1@gmail.com> wrote:
>
>
> I had the GMC in the shop over the weekend for an oil change, and the tech
> mentioned that it looks like the engine has an intake manifold leak. There
> is some coolant that has leaked around the rear of the intake manifold. Can
> coolant get mixed in with the oil via an intake manifold leak, or vice
> versa? Is it something that I need to immediately address?
> --
> Bryan Hayes
> '76 Eleganza II
> Salt Lake City, Utah
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] Intake manifold leak [message #186719 is a reply to message #186715] |
Mon, 08 October 2012 13:57 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Bryan, there is a heater hose connection on the pass side rear of the
intake manifold. There are pipe threads in the manifold that match with a
hose nipple. If that nipple or the hose clamp or the hose at that point is
defective, loose, et al, you could have a water leak. If the manifold
gasket is bad between the head and the manifold, you could also have a
coolant leak that could possibly leak coolant into the intake valley and
the Oil pan. Possible, but not likely.
Jim Hupy
Salem, Or
78 GMC Royale. 403
On Mon, Oct 8, 2012 at 11:22 AM, Bryan Hayes <hayesnet1@gmail.com> wrote:
>
>
> I had the GMC in the shop over the weekend for an oil change, and the tech
> mentioned that it looks like the engine has an intake manifold leak. There
> is some coolant that has leaked around the rear of the intake manifold. Can
> coolant get mixed in with the oil via an intake manifold leak, or vice
> versa? Is it something that I need to immediately address?
> --
> Bryan Hayes
> '76 Eleganza II
> Salt Lake City, Utah
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] Intake manifold leak [message #186733 is a reply to message #186715] |
Mon, 08 October 2012 16:55 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Bryan Hayes
Sent: Monday, October 08, 2012 12:22 PM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] Intake manifold leak
I had the GMC in the shop over the weekend for an oil change, and the tech mentioned that it looks like the engine has an intake
manifold leak. There is some coolant that has leaked around the rear of the intake manifold. Can coolant get mixed in with the oil
via an intake manifold leak, or vice versa? Is it something that I need to immediately address?
--
Bryan Hayes
'76 Eleganza II
Salt Lake City, Utah
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Intake manifold leak [message #186737 is a reply to message #186719] |
Mon, 08 October 2012 17:08 |
gbarrow2
Messages: 765
Registered: February 2004
Location: Lake Almanor, Ca./ Red Bl...
Karma: 3
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Senior Member |
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Jim,
You're repeating yourself.
Good answer both times.
Rob,
You forgot to send the message.
Gene Barrow
Lake Almanor, Ca.
1976 Palm Beach
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| Re: [GMCnet] Intake manifold leak [message #186738 is a reply to message #186737] |
Mon, 08 October 2012 17:18 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Well at least it got sent.(grin) I typed it out on my desktop, and a few
minutes later I checked it on my new 4g android cell phone and it said
draft, so I sent it from my phone. Dirty rotten modern technology, ya can,t
trust the stuff. I can't tell you how many times Ms. GARMIN steered us up
some cow pasture lane in Canada. What the heck, Dwayne always wanted to see
downtown Manhattan and the Holland tunnel.
Jim Hupy
Salem,Or
78 Royale 403
On Oct 8, 2012 3:08 PM, "gene barrow" <barrowgene@gmail.com> wrote:
>
>
> Jim,
>
> You're repeating yourself.
> Good answer both times.
>
> Rob,
>
> You forgot to send the message.
> --
> Gene Barrow
> Lake Almanor, Ca.
> 1976 Palm Beach
> _______________________________________________
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| Re: Intake manifold leak [message #186741 is a reply to message #186715] |
Mon, 08 October 2012 18:38 |
Glenn
Messages: 92
Registered: February 2004
Location: Northwestern Ontario
Karma: 2
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Member |
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Jim
That was quite the adventure through downtown NY. saw alot would not have if Ms Garmin did not take us. While leaving New Orleans she wanted to take me across some ferry (note to self set to avoid ferries). We turned around and went across a toll bridge. The nice young lady said 2 axles 1 dollar (maybe a GMCer in waiting)
HTH.........
Glenn
76 Glensbroke
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| Re: [GMCnet] Intake manifold leak [message #186753 is a reply to message #186737] |
Mon, 08 October 2012 21:30 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Gene,
I was making believe I was JimK! ;-)
What I was going to suggest to Bryan was to ask the mechanic for more specifics as to the location of the leak. Jim is correct,
however, if there is a coolant leak into the oil it needs to be corrected promptly.
Regards,
Rob M.
-----Original Message-----
From: gene barrow
Jim,
You're repeating yourself.
Good answer both times.
Rob,
You forgot to send the message.
--
Gene
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Intake manifold leak [message #186759 is a reply to message #186753] |
Mon, 08 October 2012 22:40 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Before loosening any bolts, send an oil sample to Blackstone Labs. If
there's no antifreeze in the oil, the manifold's probably not leaking.
Ken H.
On Mon, Oct 8, 2012 at 11:30 PM, Rob Mueller wrote:
> Gene,
>
> I was making believe I was JimK! ;-)
>
> What I was going to suggest to Bryan was to ask the mechanic for more
> specifics as to the location of the leak. Jim is correct,
> however, if there is a coolant leak into the oil it needs to be corrected
> promptly.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Intake manifold leak [message #186760 is a reply to message #186747] |
Mon, 08 October 2012 22:47 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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After you have done everything and are absolutely convinced that you have a coolant leak into the oil, spend $25.00 and send a coolant sample to Blackstone, of a place of your choice, for an analysis before going to all of the effort of pulling the manifold.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Intake manifold leak [message #186843 is a reply to message #186747] |
Wed, 10 October 2012 09:19 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Congrats on the new wife
She is Farr to good for you :)
Gene
FREE WIFI @ Mickey D
On Oct 8, 2012, at 6:10 PM, James Hupy <jamesh1296@gmail.com> wrote:
> Glenn, Judy and I were sorry that we missed a once in a lifetime event.
> Have you been to Jim Bounds to get your new windshields yet?
> I asked Judy to marry me yesterday, she said yes. I am a happy guy. Hope to
> see you down the road, maybe for the route 66 rolling rally in 2014.
> Jim and Judy
> Salem, Or
> 78 GMC Royale 403
> On Oct 8, 2012 4:39 PM, "Glenn Gregory" <ggregory@tbaytel.net> wrote:
>
>>
>>
>> Jim
>> That was quite the adventure through downtown NY. saw alot would not have
>> if Ms Garmin did not take us. While leaving New Orleans she wanted to take
>> me across some ferry (note to self set to avoid ferries). We turned around
>> and went across a toll bridge. The nice young lady said 2 axles 1 dollar
>> (maybe a GMCer in waiting)
>> --
>> HTH.........
>> Glenn
>> 76 Glensbroke
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Intake manifold leak [message #186847 is a reply to message #186843] |
Wed, 10 October 2012 09:46 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Gene, thanks I think.
Jim Hupy
On Oct 10, 2012 7:19 AM, <mr.erfisher@gmail.com> wrote:
> Congrats on the new wife
>
> She is Farr to good for you :)
>
> Gene
>
> FREE WIFI @ Mickey D
>
>
>
>
>
> On Oct 8, 2012, at 6:10 PM, James Hupy <jamesh1296@gmail.com> wrote:
>
> > Glenn, Judy and I were sorry that we missed a once in a lifetime event.
> > Have you been to Jim Bounds to get your new windshields yet?
> > I asked Judy to marry me yesterday, she said yes. I am a happy guy. Hope
> to
> > see you down the road, maybe for the route 66 rolling rally in 2014.
> > Jim and Judy
> > Salem, Or
> > 78 GMC Royale 403
> > On Oct 8, 2012 4:39 PM, "Glenn Gregory" <ggregory@tbaytel.net> wrote:
> >
> >>
> >>
> >> Jim
> >> That was quite the adventure through downtown NY. saw alot would not
> have
> >> if Ms Garmin did not take us. While leaving New Orleans she wanted to
> take
> >> me across some ferry (note to self set to avoid ferries). We turned
> around
> >> and went across a toll bridge. The nice young lady said 2 axles 1 dollar
> >> (maybe a GMCer in waiting)
> >> --
> >> HTH.........
> >> Glenn
> >> 76 Glensbroke
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >>
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
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> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Intake manifold leak [message #186860 is a reply to message #186847] |
Wed, 10 October 2012 12:20 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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you guys have a great time
gene
On Wed, Oct 10, 2012 at 7:46 AM, James Hupy <jamesh1296@gmail.com> wrote:
> Gene, thanks I think.
> Jim Hupy
> On Oct 10, 2012 7:19 AM, <mr.erfisher@gmail.com> wrote:
>
> > Congrats on the new wife
> >
> > She is Farr to good for you :)
> >
> > Gene
> >
> > FREE WIFI @ Mickey D
> >
> >
> >
> >
> >
> > On Oct 8, 2012, at 6:10 PM, James Hupy <jamesh1296@gmail.com> wrote:
> >
> > > Glenn, Judy and I were sorry that we missed a once in a lifetime event.
> > > Have you been to Jim Bounds to get your new windshields yet?
> > > I asked Judy to marry me yesterday, she said yes. I am a happy guy.
> Hope
> > to
> > > see you down the road, maybe for the route 66 rolling rally in 2014.
> > > Jim and Judy
> > > Salem, Or
> > > 78 GMC Royale 403
> > > On Oct 8, 2012 4:39 PM, "Glenn Gregory" <ggregory@tbaytel.net> wrote:
> > >
> > >>
> > >>
> > >> Jim
> > >> That was quite the adventure through downtown NY. saw alot would not
> > have
> > >> if Ms Garmin did not take us. While leaving New Orleans she wanted to
> > take
> > >> me across some ferry (note to self set to avoid ferries). We turned
> > around
> > >> and went across a toll bridge. The nice young lady said 2 axles 1
> dollar
> > >> (maybe a GMCer in waiting)
> > >> --
> > >> HTH.........
> > >> Glenn
> > >> 76 Glensbroke
> > >> _______________________________________________
> > >> GMCnet mailing list
> > >> Unsubscribe or Change List Options:
> > >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > >>
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> _______________________________________________
> GMCnet mailing list
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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