Question about 1997 GMC Safari

1 Answer

Gmc 1997 safari leaking antifreeze

Leaking antifreeze from line going to rear heater in a 1997 gmc safari. How do I fix?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

Most likely waterpump i have the same problem.

Posted on Jan 12, 2009


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

4 Answers

Why would my 99 Yukon have antifreeze blow back in rear of truck

What do you mean "antifreeze is blowing in the back of the truck", that is not clear at all.

I’m happy to assist further over the phone at

Feb 09, 2015 | 1999 GMC Yukon

1 Answer

Several weeks ago I had a hose burst in the cooling system -- towards the rear of the engine of my 1997 Safari van. Afterwards I started hearing like the sound of trickling water coming from the heater...

It sounds like you still have a leak somewhere, maybe it's a hose clamp that wasn't tightened or another leak. You should check the coolant level in the radiator, not the overflow bottle. If the system has a leak it won't create a vacunm to draw in the coolant from the overflow, the radiator could be very low. The sound you were hearing was air bubbles in the heater corem maybe the coolant wasn't topped off.. If the core was leaking there would be coolant dripping on the passenger's side floor.

Mar 30, 2011 | 1997 GMC Safari

3 Answers

Have an antifreeze leak coming from either the heater coil or back of the motor not really sure.

I'm pretty sure if it were the heater core, you would have antifreeze soaking your carpet, and the inside of your car would smell of antifreeze. Your inside windows would also fog up when you turn on the heater.

Feb 24, 2011 | 1997 Kia Sportage

2 Answers

Rear heater line is gone in van. How can I cap this line? The antifreeze runs right out the line as I put it in the rad. The rear heater is in the off position.

You'll have to rejoin or replace the rear heater core line that leads to the rear from the front if it's leaking like described.

One might be able to use a section of rubber hose with clamps, if the two ends are flared with a tool, hoping that the pressure won't make it leak at these two joints.

Or, as suggested in the question, one might cap the line, disabling the rear heater. Check with your local auto parts store for a rubber cap that can block the end. Maybe try a place like Lowe's which stocks a wide variety of plastic, rubber, and metal plumbing supplies that might be helpful.

Dec 31, 2010 | 1999 GMC Safari

2 Answers

There's water leaking inside of my 97 gmc safari on passenger side it smells like antifreeze coolant it seems like its comin from the radiator

That's a defiant heater problem.
Could be a hose at worse the core.
If your strapped for repair money bypass the heater all together.

Nov 25, 2010 | 1999 GMC Safari

1 Answer

1995 Safari ;How to disconnect rear heater hoses from rear heater from the front source ..All my lines under floor are leaking including vacum control under floor for closing hose line leading to rear...

Under hood at the firewall on passenger side bulkhead should observe a set of heater hoses that run off a tee fitting, jump the Tee with a lenghth of same size hose to jump out the rear, if not locate the rear heater core and jump the heater hoses together at the rear by means of an adjustable fitting and two hose clamps.

Aug 16, 2010 | 1995 GMC Safari

1 Answer


your lines going to the back may be plugged up and the antifreeze is not able to flow through the rear heating system. disconnect your cooling lines at the back and see if there is coolant in both sending and return line hook a garden hose to the lines see if you can flush out the whole heater system in the back

Jan 07, 2010 | 1999 GMC Suburban

2 Answers

Vent selector stuck on defrost (knob turns - no change) 97 gmc safari

There's a good possibilty that you have a vacuum line off. When the heater controls lose vacuum, the heater will go into the defrost mode. There should be a small line, about 1/8 inch in diameter, that goes from the engine to the firewall. It's most likely on the passenger side.

Dec 28, 2009 | 1997 GMC Safari

1 Answer

Rear heat or rear air conditoner not workin in my 1997 gmc safari

two different problems !

Rear heater problem: find under the hood where is hose for cooling liquid goes to front heating core!
you will see there also vacuum tubesgoing in to little valve ! disconnect the vaccum tubes ( engine off)
and spray in wd 40 in to the vlave ... valve is stuck and wont open flow to rear heater !

you do not have to replace tha thing . its very well made and because you dont turn this often in summer
it gets stuck. i had same problem. also make sure vacuum is working - Engine running turn rear heater on - vacuum sucks to open valve. and before that make sure fuse is ok .

for rear AC mine does not work either and it is leak on pipes that go from front to rear .. 10 feet of pipes and tubing $$ expensive repair ... forget it ... open the window...


Jan 22, 2009 | 1997 GMC Safari

Not finding what you are looking for?
1997 GMC Safari Logo

Related Topics:

213 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

83481 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22393 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides