When driving up the Canyon it overheats

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
You might try a radiator flush.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
SUPERCHARGEDMOOK
  • MEMBER
  • 3 POSTS
  • 2001 PONTIAC GRAND PRIX
  • 222,000 MILES
Hello, I have a 2001 potiac grand prix gtp. My gp continues to overheat after changing the waterpump, themastat, radiator, heater hoses, & freeze a plug in.I am stil confused on why it is overheating and am looking to fix the problem b4 I decide to sell it as is. I dont want to, I love my gtp. So plz help!
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Does it overheat quicker when stopped or in slow traffic or at highway speeds?
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
SUPERCHARGEDMOOK
  • MEMBER
  • 3 POSTS
It overheats quicker on highway & streets. Everything is completely new.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
You may have a blown head gasket from the previous overheating. Start out pressure testing the system and see if it holds pressure, then you may need to have it block tested.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
LIMA31511
  • MEMBER
  • 1 POST
  • 2003 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 106,303 MILES
Can there be a coolant leak from the exhaust manifold?
Is it correct that the engine has water channels inside the block so that the coolant can flow throw to cool the engine? And if that is correct, how would the manifold gasket having anything to do with the engine cooling system?
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Coolant does not flow through the exhaust, I think your leaking from somewhere else and it just looks like its coming from the exhaust manifold. Can you tell me the exact engine you have? The eigth letter of the vin will help in determining most likely cause.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
SUPERCHARGEDMOOK
  • MEMBER
  • 3 POSTS
Alright, I will. Is the pressure & block test complicated? Meaning can I do it myself, or do I need to take it to the shop?
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The pressure test you can easily do if you borrow/rent a pressure tester but the block testing can be tricky. It takes some real experience to be able to recognize the symptoms of a head gasket problem and chemical tests can be inconclusive.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
JMCCAMEY
  • MEMBER
  • 2 POSTS
  • 2007 PONTIAC GRAND PRIX
  • 183 MILES
My car has been overheating bad I took it to auto zone and hooked it up to the check engine thing and they said it was getting to 207 withing 10 secounds. It get hot fast and my heat doesnt work unless you drive like 80 and you can smell anitfreeze bad, they said it could be my etc sensor or a faulty thermostat.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
First make sufre the system is full and all air is bled out.

With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are both hot, the heat in that vehicle is controlled by a blend door that regulates heated air flow. It is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
JMCCAMEY
  • MEMBER
  • 2 POSTS
My car said it is overheating but the hoses aren't even hot at all. And I opened up the radiator cap and the water would bubble up and then water would flow through it.
Was this
answer
helpful?
Yes
No
+1
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I hope you're not really using water in the cooling system. That will destroy it and cause it to overheat,

Have the system pressure tested. It sounds like it's getting air pockets in the system.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
WHITE6CL
  • MEMBER
  • 1 POST
  • 2004 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • AUTOMATIC
  • 200,000 MILES
In 2012 summer, my car started overheating. I took it in, and they said when I arrived the coolant elbow was completely broken off. They replaced the coolant elbows, but they left a note saying they recommend further testing to check for unknown cooling system damage. I had no further work done that year because my vehicle stopped overheating after the elbows were replaced.
In mid-May (2014), the car was overheating again. I checked the coolant levels, and the fluid was just about gone, so I added more coolant mixture. A couple days later the coolant was almost gone again, so I assumed there was some kind of leak. I took it into a different mechanic (different city), and explained my past issue in 2012 and how the coolant levels were real low. After testing, they said unfortunately it was the head gasket. They went and replaced the cylinder head gasket/head bolt set, removed carbon, checked surfaces for warpage, adjusted valves and ignition timing where necessary. They also replaced the heater elbows. This seemed to have fixed the overheating problem for awhile.
About a month and a half later, my car was studdering and losing power. I took it in and had a complete tune-up done, as the mechanic requested that that was what I needed done. It fixed everything, but then a few weeks later my temperature gauge started rising again. Mostly when my car was running on idle or when I was in heavy stop-and-go traffic. I checked coolant levels again, but they're all fine. It still continues to rise steadily as I drive from one place to another, and sometimes it does it before I arrive at my destination, causing me to shut off my car for a few minutes just so that nothing worse happens. I guess I am confused and very frustrated at the fact that I just spent about $1100.00 in May to get the cooling system worked on, and it is still reaching the point of overheating almost every time I drive it.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Make sure your cooling fans are working first then when oocar is hot put hand on several spots on radiator with engine off and fans disconnected. If you feel any cold spots the radiator is bad.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
LISAVILLA77
  • MEMBER
  • 2 POSTS
  • 2003 PONTIAC GRAND PRIX
I have a 2003 pontiac grand prix with 104,000 miles on it. It started overheating last week when I was on the freeway. I pulled off and added water. That seemed to stop it for a short amount of time. I noticed a small leak coming from the bottom of the radiator reservior tank. Later that day I turned on my car and it was clicking real loud in the engine. When I push on the gas it would click louder. The clicking comes and goes. I continously add anti-freeze and it seems to help the overheating issue until it drains again, but the clicking still persists. I have checked the oil, and other fluids, they seem to be fine. What can the clicking be? Is there anything I can buy to stop the leak?
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
MMSCHOCH
  • MEMBER
  • 1 POST
I've had the same issues with my 2003 as well. The loud clicking noise sounds like the same thing I had: A stuck lifter.
As far as the coolant leak, there are many variables I've found. The best thing you can do is buy a car manual at the auto parts store and look at the trouble shooting guide, if you're a do-it-yourselfer.

If you can afford the garage to do it, it'll save you much time.

Good luck.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
BULLDOGGER
  • MEMBER
  • 1 POST
  • 2000 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 276,000 MILES
I get a temp warning light but the coolant temp stays within normal operating range. Engine overheat protection kicks in (fires 3 alternating cylinders). Engine oil has gone black and smells burnt. Where do I look to fix this?
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
The coolant temp sender has failed, assuming the car is not overheating.

The oil color is probably due to gas getting into oil.

You can have the car scanned and see what the PCM coolant temp is, if high but engine is not overheated, then CLT sender is bad.
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)
Tiny
MEXICAN10119
  • MEMBER
  • 1 POST
  • 2002 PONTIAC GRAND PRIX
Engine Cooling problem
2002 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic

I have a 2002 pontiac grand prix with the 3100. While my sister was driving it the car over heated to the point to where the shut off. After gettin the car home I seen that there was water coming from the upper front driver side motor mount as if the water was coming from behind the mount. Do you think I have a blown head gasket or cracked block. I dont know if there is some kind of plud behind the mount or not. Please help thank you
Was this
answer
helpful?
Yes
No
Tuesday, September 3rd, 2019 AT 2:30 PM (Merged)

Please login or register to post a reply.

Sponsored links