Question about 1985 Cadillac Eldorado

1 Answer

Leaking around thermostat housing tube to mainfold 85 Cad El

Installed new water pump having problems with the tube which crosses from thermostat housing to manifold. Tube had rust in o-ring areas. Wire brushed tube then placed a thin bead of silicone on tube areas where o-rings are placed. Installed o-rings then another thin bead of silicone. Installed pump, thermostat housing and cross tube as one assembly. Leak seams to be coming from manifold side. Question’s I have: can I remove thermostat housing and tube without pulling the pump again??? Should I replace the tube with a new one if one is available from the dealer still? Tube dose have some pitting but the silicone should have helped this, maybe I should not use the silicone. Or should I try to re-clean the tube, seal again and re-install thermostat housing and tube again. I am a seasoned mechanic and I have to say this pump assembly is one of the poorest engineering I have ever seen! Silicone is red high temp.

Posted by on

  • jglandi Apr 30, 2009

    Is this engineering issue part of the larger problem of coolant leaks into engine oil? I have twice replaced intake manifold gaskets, but during cold weather, I can hear a hissing sound in that metal tube area when I presssurize the cooling system w/o coalant in the block.

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 36 Answers

You should be able to remove the tube without removing the water pump again. If a new tube is not availabe you can use JB weld to fill gaps and pit holes. Make sure its not the intake manifold gasket that's leaking at the corner.

Posted on Jan 15, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Water leaking out of hole next to thermostate


there are two pipes connected to the thermostat housing, between the two pipes and the housing there a gasket and two O-rings. the easy way to fix it is take out the exhause mainfold and a few bolts along the pipes to replace those gasket and o-rings. should be under 1 hour repair.

Feb 22, 2015 | 1994 Toyota Camry

1 Answer

Mysterious coolant leak


Check out this few help links,in related to this types of problem.Click the link below :----Transmission fluid gets into radiator?

http://schematicsdiagram.blogspot.com/2011/12/transmission-fluid-gets-into-radiator.html

----------
The plastic housing which goes to the upper radiator hose is cracked and leaking?

http://schematicsdiagram.blogspot.com/2011/12/plastic-housing-which-goes-to-upper.html

----------
Radiator leaking? http://repairhelpcenter.blogspot.com/2011/12/radiator-leaking.html
--------Car water leak around the Starter area and Bell Housing? http://schematicsdiagram.blogspot.com/2011/12/car-water-leak-around-starter-area-and.html
--------Leaking head gaskets? http://schematicsdiagram.blogspot.com/2011/12/leaking-head-gaskets.html
---------This will help.Thanks.

Jan 16, 2012 | 2001 Dodge Neon

1 Answer

Overheating no noticeable signs that radiator is leaking, no fluid around the water pump to indicate that it may be going bad, temp gauge hits 180 then the fan kicks in...do you think the thermostat may be...


I would put money on the thermostat as a first culprit. Water pumps usually fail in a leaking state rather than in a "not pumping water" state. In the current weather, there will be little harm in running without a thermostat to test it (or even longer if you want to). The thermostat is usually in a housing at the end of the top radiator hose. Unbolt the housing, pull the thermostat, make a new housing gasket out of a cereal packet and take a drive out.

If it works, go buy a new thermostat and gasket at your leisure.

Jul 26, 2011 | 2003 Chevrolet Impala

1 Answer

There is a leak at the water outlet housing wherethe overflow tubing connects to it. There is no gasket or o ring to solve this.. how do you fix it?


check the radiator hose going to thermostat housing.it could be leaking.if hose okay.thermostat seal more likely leaking, meaning you have to replace the thermostat with seal.if thermostat with new seal still leaking.thermostat housing has a small crack in it.need replacing.

Apr 12, 2011 | 1999 Oldsmobile Alero

1 Answer

95 Buick Skylark 2.3 L 4cl There is a metal rod that goes into the thermostat housing. I am not sure what it is but it is leaking out of the connection. Is there some sort gasket that fits this...


The plastic housing on the driver side top of the engine that bolts to the head is the water outlet housing. The thermostat is under the car where the metal cooling pipe bolts to the water pump housing.

The metal tube that goes into the housing has an o-ring that seals it into the housing. The tube is held in place with a couple of bolts. Remove them and remove the tube. There should be signs of an o-ring on the tube. Sometimes you have to replace the housing in order to get them to seal up

Sep 28, 2010 | 1995 Buick Skylark

2 Answers

My 1999 Alero must have a leak somewhere because the thermostat gauge rises every few days. I put coolant in it at least 1 a week. I had a new water pump and thermostat put on it, but it is still...


CHECK AROUND WATER PUMP AREA.AND THERMOSTAT HOUSING FOR LEAKS.THE MECHANIC WHO PUT THE WATER PUMP ON MAY FORGOT TO PUT SEALANT ON BOTH SIDES OF THE WATER PUMP GASKET CAUSING LEAKS.LOOK AROUND THERMOSTAT HOUSING FOR LEAKING.IF THERMOSTAT SEAL WAS DAMAGE DURING INSTALLATION IT WILL CAUSE LEAKING.IF ALL LOOKS GOOD CHECK FOR COOLANT LEAKS AROUND RADIATOR .CHECK RADIATOR TOP AND BOTTOM HOSES FOR LEAKS AND CHECK HEATER PIPES AND HEATER CORES HOSES FOR LEAKS.IF ALL HOSES GOOD.CHECK FOR LEAKING CORE PLUGS.

Sep 26, 2010 | 1999 Oldsmobile Alero

1 Answer

How can i stop coolant leakage from my chrysler cirrus 2000


Depends where it is leaking. If it is leaking on top of the transmission bell housing it is probably the o ring on the back of the thermostat housing. (there is a rather large tube that carries coolant from the water pump on the other side of the engine to the t stat housing.) If the leak is passenger side it could be the water pump or the o ring on the other side of the earlier mentioned tube ( the tube runs under the intake manifold in the V of the engine). Other areas it could be the heater hoses or the upper or lower radiator hoses. Also a bad head gasket will do it also, signs of that can be water in your oil ( oil that is tan in color is a sign of moisture ) but you still can have a blown head gasket without water in the oil. A leaking heater core can also be a problem (wet area on the passenger side floor can be a sign of this) Also a worn radiator cap can leak into the overflow bottle and out on the ground. A sign of this is a over flow bottle that is completely full inspect the rubber seal an the cap or just replace it. The t stat housing problem is unique to the 2.5 v6 and the housing is tricky to remove. I described this procedure on wiki answer. Google - Thermostat housing 2.5 v6 water pipe 1996 and you will find it the instructions apply actually to a 1999 but is similar for most chrysler 2.5 v6's

Jul 25, 2010 | 2000 Chrysler Cirrus

2 Answers

Leaking coolant from a small hole located in the block right under the thermostat housing coolant inlet. we removed housing and gasket replaced gasket and installed, leaks from small hole?


water pump failure, water pump on these run off the timing chain and the timing chain runs in oil, so they could not just put a weep hole on the pump because it would go strait to the oil pan, instead they redirected the coolant from the leaking pump to just below the thermostat housing. And good luck, it's at least a 6 hour job on these. Brandon-MO

Jan 17, 2010 | 2004 Dodge Intrepid

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

306 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

60667 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21936 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...