Antifreeze Leak?

Tiny
NEWBYKBLA
  • MEMBER
  • 2001 PONTIAC GRAND AM
  • 4 CYL
  • AUTOMATIC
My car seems to have an antifreeze leak. It leaks when the car is not running and is parked. The leak seems to be coming from the drivers sided. You can see the leak when you look underneath the car. The low coolant light comes on but hasn't gotten hot/overheated. I notice the temperature gauge doesn't move when the coolant light comes on, but about every 3 days I have to add antifreeze to my car and once I do the low coolant light when go off until 3 days later and then I add more. I can't tell where at exactly the leak is coming from other then the drivers side is where I see the leak when looking underneath the car. However after about a day of adding antifreeze and it sits with out my driving it for a day the leaking stops, but my resivor is half empty. I can see that the motor looks wet in places on the drivers sided. I hope I have detailed enough information for someone to give me an idea what it is and what I would be looking at to pay to have this fixed, I am hoping that it isn't something major I haven't drove it since I noticed the leak in a week now I don't want to cause more harm to whatever is already wrong with it. Thank you for your thoughts and time reading this, have a nice day!
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Wednesday, February 19th, 2014 AT 2:26 PM

66 Replies

Tiny
CARADIODOC
  • EXPERT
There's two ways to identify the location of the leak. The most common is with a pressure test. All shops have them, and it just takes a few minutes to pressurize the system, but it can take a while to figure out what is just wet and where the leak is originating. The other test is to add a small bottle of dark purple dye to the coolant, then you search later with a black light. The dye will show up as a bright yellow stain that you can follow back to the source. If you need to ask more engine-related questions, please list the engine size.

This guide will help us fix it

https://www.2carpros.com/articles/car-is-leaking-coolant

Please run down this guide and report back.
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Wednesday, February 19th, 2014 AT 4:04 PM
Tiny
NEWBYKBLA
  • MEMBER
My engine is a 2.4 twin cam. Like I mentioned it seems to leak the most when it is parked and not running, but yet after about a day of being parked and not running the leaking stops and my resivor is half full. It has not overheated and I do have hot air. The leak is coming somewhere on the drivers side on the outside of the car not inside. Can you tell me what this could be and how much it may cost to fix this problem.
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Wednesday, February 19th, 2014 AT 4:57 PM
Tiny
CARADIODOC
  • EXPERT
Nope. Sorry. We don't get involved with costs here because there's way too many variables. We don't even know what's wrong yet. The typical things we'd expect to find include a rusted-off hose clamp, split rubber hose, corroded core plug, and a leaking cylinder head gasket. Any of those things can potentially leak only when the engine has warmed up and the system is under pressure. Radiators are so efficient that often little pressure builds up in the cooling system while you're driving, but as soon as you stop the engine, its heat migrates into the coolant, and the pressure goes up for the next 10 - 20 minutes. That could cause coolant to leak out during that time when it doesn't leak when you're driving or when the engine has been off and cooled down.

Start with the pressure test, then we can discuss what the typical repair would involve.
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+1
Wednesday, February 19th, 2014 AT 5:41 PM
Tiny
NEWBYKBLA
  • MEMBER
Ok thank you.
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Thursday, February 20th, 2014 AT 5:26 AM
Tiny
JSIERRA1500
  • MEMBER
  • 2001 PONTIAC GRAND AM
Engine Cooling problem
2001 Pontiac Grand Am 4 cyl Automatic

I am having a problem with the coolant leaking. First started out slow filling up the resevoir every couple days now its almost everyday. I jacked the car up and looked underneath it seems like the leak is coming from the front side of the engine. There is a circular object cylinder to the right of and below the oil filter that I could swear steam was coming out of. But with it dripping there is coolant in various places. And when I look at the ground its directly above the puddle.
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
ZACKMAN
  • MEMBER
I do believe your water pump has failed you. It is located inside the timing cover and is run off the timing chain idler.


https://www.2carpros.com/forum/automotive_pictures/55316_04grandamwaterpump1_1.jpg



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https://www.2carpros.com/forum/automotive_pictures/55316_04grandamwaterpump15_1.jpg

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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
LUIS87
  • MEMBER
  • 2001 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 73,000 MILES
I HAVE A 01 PONTIAC GRAND AM, I STARTED TO SMELL COOLANT INSIDE MY CAR, AND MY FRONT WINDSHILD START TO FOG UP EVERYTIME I DROVE IT.I LOOKED UNDER MY HOOD AND I SEEN COOLANT LEAKING OUT OF MY A/C RELEAVE VALVE, WHICH CAUSED MY CAR TO OVER HEAT. I WAS TOLD IT COULD BE MY HEATER HOSE. BUT I WANT TO BE SURE THAT THE PROBLEM. THANK YOU
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
MHPAUTOS
  • EXPERT
Hi there,

If the heater hoses go through the fire wall before attaching to the heater core, they very well may be the problem, or in fact the heater core may be leaking as well, you will have to pressure test the system, and carefully inspect any hoses under the dash and the heater core if at all visable for leaks.

Mark (mhpautos)
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
LUIS87
  • MEMBER
Thank you for your help it was very helpfull
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
MICHELLEWHITCOMB
  • MEMBER
  • 2001 PONTIAC GRAND AM
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 80,000 MILES
I am wondering what would cause me to lose so much coolant, I am told its the head gasket, What else might it be and what might I be looking at cost wise?
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
MHPAUTOS
  • EXPERT
Hi there,

If the coolant loss is external, you will have to have a pressure test to determine where the leak or leaks are, it may be a hose, water pump, core plug or the head, as for costs you will have to know what the exact problem is before attempting to price the job.

Mark (mhpautos)
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
AUTOTECH04
  • MEMBER
These cars are known for bad lower intaike manifold gaskets & head gaskets ! If it is a head gasket. Usualy the rear (right side) u might as well get the 2 done! With my experience with these engine is if 1 is done the other 1 will go & u will need to do the same job again.
It if more expensive @ first but in the long run u wont have to worry about it !
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
MICHELLEWHITCOMB
  • MEMBER
Thank you :) You were right I took it in this morning and it is the lower intake 900.00 later. Ugh.

Thanks again
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
AUTOTECH04
  • MEMBER
No prob !
Just keep an eye on ur coolant level ! Those engines are known for the rear head gaskets going bad ! If u suspect it's leaking all u would need to do is lift the right side of the car & remove the wheel or turn it to thr right. U would get a better look with the tire off. Then look @ the end of the cylinder head where the timing cove is & if u see a trail of pink or orange fluid going down the side of the engine block u have a leaking cylinder head !
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
ANGIE35016
  • MEMBER
  • 2001 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 166,000 MILES
My car continues to leak coolant. Although, I cannot see it where it is parked, I can smell it when I get out of the car. The low coolant light came on and I checked to coolant resevior and it was empty. I filled it up and took it in to the mechanic. He stated that I had leak in the water pump and the housing around the head gaskets had a crack. All the was replaced. Drove it for two days, low coolant light came on again. Checked engine coolant, completely out again. I cannot figure out what else is wrong. The car has never run hot. When the fixed the crack around the head gasket housing, they also replaced the tempature valve according to the invoice. Where else could it be leaking from? I check it every other day and have to put more it, it is never completely empty but is low. Please advise. I can't afford to buy a new car right now, but taking it back for the same thing is getting very annoying. Can you advise what I should look for now?
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
MHPAUTOS
  • EXPERT
Hi there,

Thank you for the donation,

You should get the cooling system pressure tested hot, this will show up any external coolant leaks, make sure that they check the pressure cap as well, start here.

Mark (mhpautos)
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
ANGIE35016
  • MEMBER
Thanks so much for your response. It is great to know someone is out there that totally understands my dilemma! You guys are awesome!
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
In addition to having the cooling system pressure tested, you could purchase a dye to place in the system. Drive the car and then, using a black light, you can look for where the leak is coming from. It sounds crazy, but it does help.

Let me know if this helps.

Joe

Again, thanks for the donation.
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
DASHAUN94
  • MEMBER
  • 2001 PONTIAC GRAND AM
Okay, So my 2001 Grand am runs out of coolant fast only when the heat is on. If I leave the heat on during my whole travel the next day my low coolant light will come. If I don't touch the heat at all the coolant level basically stays the same! HELP!

Thanks in advance!
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)
Tiny
SATURNTECH9
  • MEMBER
So does your front floor board inside the car get wet or can you smell a sweet smell coming from the heat ducts when using the heat? It could be the heater core or a leak somewhere under the hood. You could also do a cooling system pressure test.
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Wednesday, July 29th, 2020 AT 10:10 AM (Merged)

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