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Slow Coolant Loss 5.3L 2001 Tahoe

 
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AlanRab

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Since: Apr 17, 2004
Posts: 1



(Msg. 1) Posted: Sat Apr 17, 2004 1:59 pm
Post subject: Slow Coolant Loss 5.3L 2001 Tahoe
Archived from groups: alt>autos>gm (more info?)

I've noticed over the past 9 months a slow loss of Dexcool coolant in my
2001 5.3 L Tahoe with 60,000 miles. I've had to top off the overflow tank
with about 1/2 quart every 2 months or so.

A local oil change shop said they notice a slight coolant residue below the
passenger-side cylinder head gasket, their thought on the likely site of
coolant loss.

Is a leaking head gasket a common thing on this engine? Does anyone know of
a GM tech service bulletin on this matter? I was just wondering if GM will
take any financial responsibility for a head gasket replacement repair, if
that proves to be the cause.

Thanks.

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hyundaitech1

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Since: Apr 16, 2004
Posts: 119



(Msg. 2) Posted: Sat Apr 17, 2004 6:07 pm
Post subject: Re: Slow Coolant Loss 5.3L 2001 Tahoe [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

I'd check the intake sealing area very carefully. This is a more frequent
leak location and it may be running from there to the head gasket area.

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shiden_Kai

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Since: Feb 14, 2004
Posts: 169



(Msg. 3) Posted: Sat Apr 17, 2004 10:52 pm
Post subject: Re: Slow Coolant Loss 5.3L 2001 Tahoe [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"AlanRab" wrote

 > A local oil change shop said they notice a slight coolant residue below
the
 > passenger-side cylinder head gasket, their thought on the likely site of
 > coolant loss.
 >
 > Is a leaking head gasket a common thing on this engine? Does anyone know
of
 > a GM tech service bulletin on this matter? I was just wondering if GM
will
 > take any financial responsibility for a head gasket replacement repair, if
 > that proves to be the cause.

It's not a common repair, but I have seen the passenger side head gaskets
leak on these engines. There is no bulletin or recall for this. You will
be
footing the bill. Make sure that you check carefully for the origin of the
leak. The water pump gaskets on these engines also leak, and the position
of the water pump gasket can make it appear as though its leaking from
the cylinder head gasket area.

Ian
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shiden_Kai

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Since: Feb 14, 2004
Posts: 169



(Msg. 4) Posted: Sat Apr 17, 2004 10:53 pm
Post subject: Re: Slow Coolant Loss 5.3L 2001 Tahoe [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"hyundaitech" wrote

 > I'd check the intake sealing area very carefully. This is a more frequent
 > leak location and it may be running from there to the head gasket area.

This is the new generation small block. The 5.3 engines do not use
a "wet" intake manifold. So there are no more "intake manifold gasket"
leaks on these engines.

Ian
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