Question about 1997 GMC Suburban

1 Answer

Over heat coolant leaks threw inlet hose to heater under dash .now no heat whenturn on why when overheating

Posted by on

  • waynepuen49 Sep 07, 2010

    I agree wasn't sure at first' thank's for the assurance

  • waynepuen49 Sep 07, 2010

    I agree. info very helpfull.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 11,896 Answers

The hoses attach to the heater core which is under your dash. The heater core may have to be replaced. Try changing your thermostat first. To find the thermostat, follow the upper radiator hos to where it meets the thermostat housing. It has 3 bolts on it. The thermostat is under the housing.

Posted on Sep 07, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

No heat in 1999 sunfire


This can be a few things, for starters most common in my experience is when you have air bubbles in the coolant system (Mostly when its been recently drained or flushed) You will have no heat. Also, if your heater core has failed (in most cases water will leak from under your dash) you will loose heat and your vehicle will most likely overheat. Last but certainly not least, a failing head gasket could cause combustion to leak into your coolant system causing air bubbles which could make your heater not work which could also cause overheating in further along failing head gaskets. Things to check would be a leaking heater core under the dash, overheating, check engine lights and bleeding the coolant system.

Feb 22, 2014 | Pontiac Sunfire Cars & Trucks

1 Answer

Bad coolant w/ leaks from many places, overheated and shut off, heater doesnt blow heat anymore


After the engine has reached normal operating temperature, feel both heater hoses going into the firewall. Are both hot? If both are hot, it's probably the door or doors in the heater case not operating from the selector knob on the dash. If only one hose is hot, the coolant is not circulating through the heater core. Look for a water valve in the hoses that is shut. If no valve, crack open the cold line to see if you can start circulation through the core. If neither hose is hot, pull off the inlet to the heater core (it may come from the cylinder head area) and run the engine and check stream flow. It won't spurt out like a garden hose, it should flow out in a smooth even stream, maybe just enough pressure to push a steady stream. If no flow comes out, coolant is low, or there is a circulation problem in the engine, like a kinked hose, a weak water pump...
Does the radiator cap hold pressure in the cooling system?

Feb 08, 2014 | Cars & Trucks

2 Answers

2000 Impala leaks coolant out hose in firewall


It sounds like you're looking at the heater core water lines. These connect to the heater core supply and return inlet and outlet pipes to bring hot coolant into the cabin for heat and windshield deicing.

The heater core is a mini radiator and operates on the exact same principles as the radiator does. The heater core is located behind the dash board on the passenger side. Look for a wet spot of antifreeze on the passenger side floor area - close to the firewall for an indication of a leaky heater core. If it is leaking, it will likely need to be replaced. This can be a pricey repair.

Good luck!

Jun 14, 2012 | 2000 Chevrolet Impala

2 Answers

My van is over heating there is coolant and water in the radiator it started leaking underneath towards where the front passenger seat


The problem sounds like either the inlet or outlet hose to the heater core is cracked or split. Or the heater core itself is at fault. Need to inspect the hoses from engine to the firewall going to the heater core for damage. If no leak from the outside then problem will be on the inside under the dash. Hope this will help you.

May 31, 2010 | 1998 Dodge Caravan

3 Answers

No heat engine gets warm but heater wont switch from ac to heat


Start searching for a vacuum leak. The dash switch operates a vacuum assembly - but if the line is cracked, it "door" will not change position.

Oct 14, 2009 | Ford F-150 Cars & Trucks

2 Answers

2005 Dodge caravan is overheating, but there is no heat inside the van. I changed the thermostat and also checked for air lock in the system. Is the water pump the next thing to check?


Overheating can be caused through a lot of things But 1st on the heater pipe going into the cab ,through the firewall there is 2 heater pipes 1of them has a air valve on it so when you turn to hot the vacuum opens the valve and lets the hot water come through.or it could be under the dash on inside of firewall by heater inlet.BUT check your radiator for dust and dirt in the outer cores/Loose fan balt/water pump falty/Head gasket leaking/ plus others will all cause
the car to overheat .
So let me know how you get on Ron

Oct 12, 2009 | 2005 Dodge Caravan

4 Answers

Coolant is leaking into the passenger side of car interior 1997 DeVille happens when AC is turned on,it is not overheating it is not leaking from anywhere visible under the hood


i bet it is your heater coil located under the dash of the car. when it gets cold if its not fixed it will fog up your windows.

Aug 19, 2009 | 1997 Cadillac DeVille

2 Answers

Prizm overheats, heater core leaks, no heat


You can bypass the core or fix it that's up to you but I would change or remove the thermostat first. If it still overheats then start looking at the water pump and radiator. Hope this helps. Good luck.

Jun 09, 2009 | 1993 Geo Prizm

2 Answers

Blowing Cold Air


Sounds like a heater core. Check the passenger side floor board. Sometimes when these go out there will be some water on the passenger side floor. Hope this helps some.

Dec 31, 2008 | 1992 Chevrolet Suburban

2 Answers

96 thunder bird overheating


Sounds like the heater core (a small radiator of sorts under the dash) is leaking or a hose going to it is leaking. If in a warm climate, you could bypass or block the heater hoses temporarily. Their only purpose is to make heat avail to interior of car. The 2 heater hoses either connect to feedthru's at the firewall or simply pass thru the firewall to the heater core. Every car I've seen has it on passenger side.

Peer up under the dash, it should be clear where it's coming from.

Oct 26, 2008 | 1996 Ford Thunderbird LX

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

Related Topics:

82 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

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

Answer questions

Manuals & User Guides

Loading...