Pontiac - G6 :: 2007 - Overheating / Slow Leak In The Radiator
Apr 19, 2015
Will start with the back story, i have a 2007 G6 V6 that had a slow leak in the radiator. I kept it full and it only went higher than normal once but i noticed it right away and didn't let the needle peg at hot so I've kept it full, checking it every time I went somewhere. the other day on my way to work the needle pegged at hot and the temp light came on so i pulled over right away and shut the car off and let it cool for an hour and added some more coolant. started it up again and the temp stayed normal for a minute so i tried to get it back to the house when the needle pegged, i lost power and the check engine light came on. i stopped the car and called a tow and while waiting on the tow truck my battery died and all i had running was the hazards. the only thing I noticed was the leak in the radiator had gotten worse.
After I got it home and let it sit for 5-6 hours i got a jump from my neighbor and I noticed I wasn't getting any circulation, the reservoir was still full, the check engine light came on and stayed on, and within a minute or two the temp was rising fast so i shut it off and haven't touched it since except to check the oil which looks, smells, and feels fine and is at the proper level and didn't see any oil floating around the overflow tank. and while the car was hot I didn't see any smoke or steam coming from anywhere aside from the leak in the radiator, the water pump pulley was spinning fine, no whining or whirring sounds. i did notice that the plastic piece where the metal overflow line attaches to the engine was badly cracked but wasn't leaking.
I'm thinking maybe the water pump went out and/or the thermostat is stuck closed and caused the overheating issue. as far as the check engine light goes, could that cracked plastic piece cause the check engine light to stay on?not sure if there's a sensor involved in that or not. or could it be the low coolant sensor causing it as the block has no coolant in it?
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I have coolant disappearing but no signs of a leak anywhere. Oil is fine. Car does not run hot. There is rust in the radiator though. Heater core is not leaking. I have a 2001 Pontiac Gran Prix GT. There was a recall on the cooling system but was not serviced (I didn't own car then). A pressure test was done and it holds pressure. Should I change radiator and thermostat? What else should I have checked?
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2007 G6 Problem occurs at slow speed with sharp turning, such as coming out or into the driveway. As the steering rack moves slowly it tends to stick and release 3 or 4 times when turning sharply at very slow speed. It makes a sound so loud even the passenger cam hear it and the driver can feel it in the steering wheel. Does occur while driving normally. The dealer says its a GM problem with no real correction. They greased the rack and said the problem would return soon, but it is not a safety problem. So far they have been right on both counts. Are there any real cures?
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I had my LS at the dealer this morning getting the fuel regulator recall and they noticed that my radiator had a very small leak at the nipple where the overflow hose is connected. From what I've read, this is a very common issue that I probably caused by leaning on the fitting at some point while working on the car.
I'm no stranger to DIY and am willing to take this on. I'm looking at replacements online and I see two brass fittings at the bottom. Are those for transmission cooler lines? If so, wouldn't replacing the radiator cause the loss of some transmission fluid?
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My son has a 2007 sonata v6, daughter has one too. Both have about 130K miles, and both developed slow coolant drip leaks. I took off both hoses on both cars, cleaned the crud from the housings and replaced with new hoses and clamps. Problems solved in daughter's car, not so in sons car. I note that it looks like the area below the thermostat housing is wet - and thought that was from the crud/hose situation. But he is still losing coolant, even more now that its getting colder at night, and I's sure its not the hose connection anymore.
The car will generally NOT leak when hot, only as/when it cools off. I.e. puddle in the morning situation.
Looking at the diagrams, it looks like that "housing" is really a connection to the crossover pipe, heater hoses, other stuff (throttle body heat) and also contains what looks like a temp sensor.
I suppose any of these are possible, but my first thought was either a leaky temp sensor (or possibly loose) or something more serious like a cracked housing, leaking o-ring, gasket etc.
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I was driving my 2008 Santa Fe last week (before I went on vacation) and noticed the the A/C wasn't coming through quite a cool as usual (almost felt like the vent was on w/ no AC). Then after about 10 minutes of driving I noticed the thermostat on the car get to about the 3/4 line pretty close to the red lines.
Luckily I was home so turned the car off and popped open the hood. I noticed the reservoir tank was empty and there was some coolant that dripped down on the fans & a small pool of coolant on the engine block right under where the oil is poured. (nothing has been dripping under the car)
I added a little coolant to the reservoir tank and the next time I turned it on and let it run for ~10 minutes, it was the same thing.
Anyway, I came back from vacation and opened the hood to try and identify exactly where the leak was, and ran the car for ~30 minutes, with A/C on full blast and the car didn't overheat or leak anywhere. Coolant tank was still full from when I filled it the first time.
What could have caused the leak/overheating in the first place?
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I m having trouble figuring out why the radiator fans wont turn on, Even when the ac is turned on it still doesn't turn on, I changed the coolant temp senser. still nothing, i also ran a whire from the battery to the fan and they both turned on. I also stitched around relays and checked fused still nothing. 2000 pontiac grand am 2.4L engine 4dr auto trans.
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I have a 1996 Pontiac grand am gt. It started over heat and bog down. I put more dex-cool in it but its not cooling down. After doing so, I stopped, got out and checked underneath. It was pouring fast. I checked all hoes to and from the reservoir...all good. I was told it could be the lower intake manifold gasket...true/false...
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My 1992 Nissan Primera 2.0 slx is overheating, probably on its last legs. First time this happened the radiator overflow tank seemed low so I topped it up with glycerol and added some leak plugger to the radiator for good measure. The car drove just fine for 20-30km then it happened again. At the same time, and I don't know if this is relevant, the windscreen defroster, which should bleed warm engine air, now only gives cold.
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What part to look at? cleaned fan connector and it worked for a bit, but still overheats with ac on. 2001 4 cyl saturn...
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We were driving home yesterday and all of the sudden the car started to over heat and we could smell antifreeze. We turned the ac off and put more water in it. Today we just had to make a short trip somewhere (we were planning on having it looked at first thing Monday morning). The temperature gauge never showed it overheating but as we pulled into our driveway we heard a knocking sound and it just shut off. Iit may just be a leak and it caused the car to over heat??
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I have a 2001 Pontiac Montana that was overheating. It was low on coolant, and using coolant. I took it to a mechanic who checked it out and found exhaust gases in the coolant. He initially told me that it was a bad head gasket. After doing a bit of research, I am told that it could also be an intake manifold gasket. I know I am losing coolant, but I cannot tell where. I don't think it is going into the oil, as my oil level does not go up. I do not see coolant leaking below the vehicle, so perhaps it is going into the exhaust? Or leaking slowly on top of the engine where it is burned off before it can go on the ground.
Is there any test I can do to determine which gasket is bad before tearing into the vehicle? I thought about sending an oil sample off to determine if I am getting any coolant in the oil, but I don't know if that would be useful information at this point.
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Ok, I just bought myself some problems in the form of a '93 Celica GTS. (5S-FE)
Well, alright, that's a little dramatic. it just overheats. but here's my issue. it's got a new water pump, new radiator, and is still overheating. The guy I bought from says it's in the block, cuased by an attempt to plug a radiator leak with stop leak. He said it just had a minor leak in the radiator, so he put stop leak in it, and after that it started overheating. he's replaced the thermostat, water pump, and radiator since then.
My first question is, could he (and I) be overlooking something? could there be a clog somewhere easier to access? and then if there isn't, how should I go about cleaning out the block? are there areas I should check? anything I should do to try to unclog it? my current plan is to put cooling system flush in (he has some) and drive it home (about 55min. drive) with the flush in it, then empty it and hope for the best.
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For a while now I've been having issues with my truck overheating. Generally when I slow down, come to a stop, after driving a while. The other I replaced the radiator cap, as coolant was bubbling out after driving far. Thermostat was replaced. Radiator was flushed today as there was some rusty color build up. Added engine oil as it was VERY low the other day. So far I'm still getting the overheating issues and it seems to happen more so when I run my AC. I've noticed no significant leaking from anywhere else after replacing the cap. I'm thinking of either the water pump or the fan? But I dont know how to know for sure and I dont want to replace parts that I dont have to as a waterpump alone is $50-60.
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I own a 2003 Saturn Ion I.
Recently I noticed that the fan on the radiator does not function, resulting in overheating when using the AC. I have tested the electrical wire leading into the fan motor and found that it is putting out 14.4 volts, indicating that the wire is functioning properly and that all fuses are intact. I also hand spun the fan to see if it would turn without resistance, which it did, indicating that the motor is not jammed.
These tests lead me to believe that I may need to purchase a new fan unit and install it. Additionally I have found that there is a dual fan option for my vehicle, and I was wondering if I should purchase that instead of the standard one fan?
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I changed the radiator and thermostat, changed the coolant, and my fans work. however, whenever i take the car for a short drive, the temp goes up. I stop the car and shut it off, it steams near th coolant tank. it sounds like its almost boiling..
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156,000 miles, I've been pulling a 21ft bass boat in the summer for years with no issues. Now on hot days (over 78 degrees) it is over heating. Can't use AC and need to slow down to 60 mph in-order to cool her down. Never have flushed the radiator but I'm wondering if getting it flushed is a waste of time and if I should just proceed to replacing the radiator? For a couple of years now I can hear a roaring sound (like a jet engine) on really hot days, when I start out driving. Could this be a cooling fan? Seems like the power is restricted during these times. Really need to increase throttle to get going?
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My granddaughter's 1999 Pontiac Grand Am is overheating & blowing the antifreeze. Radiator was checked out OK, engine was replaced with 69000 miles, and check out OK - still overheating.
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My 2000 Accent with 164,000km is not overheating but is dumping coolant into the reservoir so that the radiator is about a quart low. I did have a few problems with it overheating in the past month, but that was solved by thermostat removal (always above 80F here). I stopped before the overheats reached the redline and allowed the engine to cool before continuing, no known adverse performance during the overheats. No water in oil.
Failed troubleshooting:
Drained and replaced coolant x3
New radiator cap
* No thermostat.
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My car was starting to over heat and I wasn't getting any heat thru the vents. Thermostat was replaced and so was the radiator cap. The coolant reservoir is still topped off, and doesn't seem to be getting sucked thru to the radiator. If I pour coolant directly into the radiator, car temp stays even, and heat eventually does come thru vents, better while driving. But, I still get steam/smoke coming from radiator cap. I cannot be buying and pouring coolant into the radiator everyday. I have a 99 Mitsubishi Eclipse with approx 140xxx miles...
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I have a 1997 Subaru Legacy Outback Limited, ~180,000 miles. It has been a good car but we've run into some problems the last few months. About a month ago we were driving back from vacation and experienced a loud belt squeal from the engine. Had a nearby mechanic look at it -- turned out it was a timing belt pulley which we had to have replaced.
Now, a couple weeks ago, the day after getting my fluids changed, I was driving over the mountain on another, shorter, trip and experienced sudden overheating - steam coming out from the radiator - lots of discouraging gurgling and clunking sounds as liquid moved around. Had to have it towed 40 miles back home.First thought being a Subaru person -- head gasket. A couple of mechanics nearby when I was broken down on the side of the road gave that as a preliminary diagnosis as well.
Unfortunately, we were leaving for a week on another trip, so I had to wait to have my car looked at until we got back -- about 2 weeks. Now my regular mechanic takes a look -- he says it isn't the head gaskets, but a hold corroded in the bottom of the radiator that the coolant is just pouring out of. Also the fans aren't working. F
I have heard that most people get their radiators replaced before it becomes clear that it is a head gasket issue. So I am very nervous that this issue is actually a head gasket and that for whatever reason my normal mechanic can't find the signs for because it was sitting for two weeks, or for some other reason. He's not a Subaru specialist. I asked specifically that he check the head gaskets and he says no oil in coolant, coolant in oil or sweet smell from tailpipe.
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