Question about 1999 Saturn SL

1 Answer

Flushed my 99 saturns heater several times. Heater will work for a month or less and stops again. It has gunky stuff in it every time. What is causing this and what can I do to fix my heater?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 23 Answers

Keep flushing till all the gunk is gone, and change your brand of antifreeze, and check the Water you are mixing it with, may have a lot of minerals or whatever

Posted on Jan 07, 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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

I have a 2001 saturn sl2. No heat. I have flushed heater core today and replaced thermostat. Heater lines are warm. No other problems or leaks. What is causing no heat? Its cold all the time.

If after running the engine for 5 min both heater hoses are hot, it could be a blend door problem where air is not flowing thru the heater core. You may need a shop manual to troubleshoot the control.

Nov 23, 2015 | Saturn Cars & Trucks

1 Answer

Saturn overheating

the stuff describe most likely from the anti boil -anti freeze mixture that has become ineffective for not being changed regularly and not up to percentage to do the job. It allows the aluminium parts of the car to corrode and what you see is the end result . It will deposit in the cores of the radiator and block them up resulting in a replacement radiator . You can expect corroded aluminium parts from all areas of the motor.

Apr 22, 2014 | Saturn L Cars & Trucks

1 Answer

When i turn on my heat it smells like coolant

the lines to the heater core may be leaking, or the heater core may be blocked, or split. try flushing the coolant system. If that magic fix the head gasket stuff was used, eh.. It may need flushed several times or replaced. I wish you good luck with your volvo, and hope it lasts forever! (owner of a 740 with very high miles!)

Oct 17, 2013 | 1999 Volvo V70

1 Answer

Hi. Actually I have VW Passat 2003 which recently stopped blowing hot air through the vents. The fan is still working but no hot air. A friend tells me that the unit that regulates the flow of hot water is...

Scale builds up in the bottom of the heater core. When it gets high enough, it chokes the flow of hot fluid and the fan can only supply cool air. When mine was doing that I disconnected the in and out hoses at the fire wall and flushed it out with garden hose pressure. A lot of junk came out. I reconnected the hoses and bled the air out. It worked good immediately. Two weeks later it happened again. I did repeated the procedure with equal results. It happened again every several weeks for about five or six times, each time lasting a little longer than the last. I guess I need to flush the whole engine out to get all the junk out instead of just the heater core. BTW, the stuff that comes out looks similar to sand if you capture it in a bucket. It sinks to the bottom of the water so you can see it. It must be sinking to the bottom of the heater core, too, and that's why it chokes the flow off.

Aug 18, 2010 | 2003 Volkswagen Passat

1 Answer

1999 saturn sl1 wagon has overheating problem. Had a leak in the reservoir so I replaced that. During that time had added stop leak several times. Reservoir is now new, but still losing water at speeds...

If you cant see any water coming out anywhere then the only choice is a blown head gasket.

The reason the resorvior had a leak was the pressure from the engine got into the coolant and blew up the reservior bottle. This is a real common problem with saturns.

Get the car inspected. A simple test a a reapir shop will confirm this.

Be sure to flush all the stop leak out or it will clog the heater core up and the heater will not work.

Jan 04, 2010 | 1999 Saturn SL

2 Answers

No heat in 99 saturn sl1 fan blows but little heat

One or more of:

1. Your coolant is low
2. Your thermostat doesn't close and needs to be replaced
3. The valve from the cooling system to the heater core is stuck
4. Your heater core is clogged

Dec 13, 2009 | 1999 Saturn SL

1 Answer

99 saturn no heat or defrost

Sounds like your heater core is mostly stopped up. You need to have your cooling system back flushed and cleaned.

Sep 12, 2009 | 1997 Saturn SL

2 Answers

98 jeep wrangler no heat

Try this disconnect the heater hoses from the heater core use a hose to backflush the core. Then reconnect and try again.

Oct 18, 2008 | 1998 Jeep Wrangler

Not finding what you are looking for?
1999 Saturn SL Logo

Related Topics:

65 people viewed this question

Ask a Question

Usually answered in minutes!

Top Saturn Experts


Level 3 Expert

78267 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

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

Answer questions

Manuals & User Guides