Golf IV / Jetta IV :: 2000 GTI VR6 - Coolant Leak / Smoke And Starts To Overheat When Idling
Nov 2, 2015
I have a 2000 vw Gti vr6. It leaks coolant smokes and starts to over heat when idling. Does fine when driving down the road. It has a new radiator. When pressure tested I can see a little stream of coolant coming out. But there's no space in the engine bay and I can't see exactly where it's coming from. Like I said it only happens when it's Idling for an extended period of time. It does fine going down the road.
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My 2000 jetta glx is leaking coolant fast enough to empty the reservoir from full in about 10 minutes but only does it while running. Why this is or what I should look at fixing?
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My 1997 Saturn SL has had an odd overheating problem for several years now. When idling the engine starts to overheat, but the fan does not kick in until/unless I turn on the AC.( I do a lot of idling, as I work from the car a good deal.) I've had the car serviced, even had the fan specifically checked in the shop, & had the AC components changed out last year (whole other issue, barely blows cool air). But the overheating abides.
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1999 Camaro V6 125K miles. Occasionally overheats. No noticeable coolant leak. Was pressure tested and passed. Mechanic suggested new radiator cap. New cap installed and was fine for a while then overheated again and problem seems to have intensified. Will a compression test reveal anything regarding this problem?
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so i had a huge coolant leak, changed the coolant flange, filled and ran while clearing air out of the system plus a 20 minute drive = NO leaks
once it hit the highway, coolant gone, smoke everywhere...
no visible leaks
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Before I go buy a Bentley manual to dig around, when should my radiator fans kick on. I had the car idling for 10 minutes, no ac or heat on, and my coolant warning light came on, it overheated. It already has a new fan switch in the radiator, and the fuses are good.
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Here are my questions.
1. What can cause repeated steering rack failures, which I am trying to dianose?
2. I found yellow spots in the snow that would come from the center of the vehicle (as opposed to near the wheels), could this be from the coolant system?
If you got that far, here is the relevant history. My wife drives my 2000 Jetta, its a nice car with repeated problems. One such problem is with the steering rack. 1. The steering rack failed in 2006, it was an expensive fix. It was leaking for a while, but I just topped off the fluid every couple of weeks. 2. Within a year the steering rack failed again, it was still under warranty. 3. 2 years later, the rack failed for a third time. I wrangled with the shop and they agreed to reduce my price for the fix even though the part was no longer under warranty. They had the car for a week trying to diagnose the problem, they said they found nothing out of the ordinary. I took the car to another mechanic a week later for some other issue, and he saw leaking from the fill plug--back to the dealer again. They said they cleaned the washers around the plug to fix the problem. No problems since then. Now its almost two years later and I have found a couple yellow spots in the snow, although near the center of the car and not near the wheels. This makes me think it may actually be a coolant leak, but I don't know right now.
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I am having a overheating issue with my 1.8t AWP gti, it goes as fallows, start the car, engine warms up go for a drive (short 5-8 mi), park the car and temp gauge starts to rise, (turns off car)... I began to check some things with the system, I checked both rad hoses bottom is hot top is a bit hotter and fans work when ac is on; here is where it gets interesting i took off the coolant return hose on the reservoir (cold start) and nothing was flowing ...water pump?... So i turned the heat on and air full blast and all of a sudden coolant starts to flow.
It also seems like air is being spat out as well. Soon after the flow beginning my coolant in the reservoir starts to fluctuate (rising and dropping) with air bubbles and beginnings to over flow so i shut the car off. Now I know what the possible issues are its either the water pump, air in the system or bad autozone thermostat. Here is some history of the car TB was replaced at 70,000 by Previous owner, i bought the car had the belt inspected and was told it was good, about 2 months ago i had a coolant leak and had it misdiagnosed as a thermostat housing leak; it turns out it was a coolant bypass hose that was leaking so i ended up fixing it. I lost a lot of coolant but topped it off with g12+. My mechanic doesn't think its the water pump and recommended changing the thermostat for an VW one another mechanic recommended to bleed air of the system.
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I have a 2002 VW MK4 1.8t. It has 172,000 miles on it. Since i bought the car i have had to add coolant from time to time due to leaks from various plastic coolant parts so I replaced the crappy plastic connectors and flanges as they failed but it has never overheated till a couple days ago. It rose up to about 210'F but I didn't let it get to 260'F (aka the red zone).
While the temperature was up, the coolant was spraying everywhere causing white smoke under the hood. I stopped and looked under the hood and came up with the conclusion it was the coolant flange that holds the temp sensor since it was leaking coolant from the flange like a faucet hince the reason it caused it to overheat due to lost of pressure and no coolant in the system. So I replaced the part and gaskets then checked for other obvious leaks.
No leaks are shown nowhere else in the vehicle. So I added coolant to the car and let the cooling system do its magic as i left the heater on high. Let car idle with cap off and heater on for about 45 minutes. No signs of overheating. So I take the car for a spin and that's when the car starts heating up. I look under the hood and feel hoses and notice all are pressurized but top hose that leads to coolant flange is hot and the bottom hose connected to thermostat is cold.
I checked the return hose that leads up to the coolant reservoir to see if it's cycling and it appears it was. At low rpms the return hose had a steady flow and at high rpms it was flowing much rapidly. Which made me think it wasn't the water pump also this car with that many miles wouldn't have lasted with the plastic impellar this long if it wasn't already swapped out by previous owners. My question is what would cause it to still overheat? I forgot to note the fans did not turn on when the temperature was rising unless i turned the a/c on. But i still did a drive test with a/c on and it still overheated. I also did multiple burp cycles. I have invested alot of money in custom work and suck to leave it parked on the drive way.
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02 Jetta 2.0L that I changed the thermostat. o-ring, and cover on when I first got the car about a year and a half ago.
I see dry g12 coming out from behind the cover and my coolant bulb had dipped quite a bit in recent weeks requiring a refill. What is most likely the problem here in such a short period of time? I've only put like 10k miles on the car in that period. O-ring couldn't have seated wrong because wouldn't the problem have been apparent immediately back when I did the job? Maybe I need to re-torque the cover? Cracked cover?
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My car has been leaking coolant as soon as you put it in from it looks like the transmission area. Today I filled the car with water and drove it on the interstate to work. The car started getting jerky like it was losing power. So I pulled over and when I did the car shut off. There was excessive smoke under the hood and after removing the oil cap, smoke coming from there also. Tried restarting and it sounds like it just spins. No start. Looked at the timing belt, it's still intact. Put a wrench on the crank pulley and it's turning. What's wrong? Is it a goner?
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I noticed today when I was in a drive thru that ,y Jetta was smoking a little.... Went home ate my food and came out and looked underneath the Jetta and found a substantial coolant leak..... My heater core is bad I know this already... Would this cause coolant to leak outside the car or the carpet only??? I jacked up the car and checked for leaks... There is coolant all over the rear engine mount... And the driver side corner of the engine is pretty soaked in coolant....I can't pin point the leak..... There is a connection coming out of the side of the head that's got a little pinky crusty stuff on it but I can't see anywhere around it...
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Just purchased a 01 golf 1.8t 5spd and noticed it has a small coolant leak.. Left parking over 2 days in the same spot and it builds up a little puddle.. It's dripping down off of my oil pan and I haven't been able to trace it back to where the leak is coming from..
I've been told it could be my water pump? The car has 92k miles.
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I have a 04" GLI and I was thinking about doing a coolant flush. Looks like I have a slow leak. I was wondering where should I look in order to stop the leak. Put some coolant in about a month ago and now the coolant light is back on. Every morning when I pull out of my driveway there is a small leak under the driver side of my car. Is this an easy fix? If I do decide to do the coolant flush myself what is the recommended coolant replacement?
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2003 GLI 2.0 engine
We have a significant coolant leak. The attached pic is of a coolant pipe which runs down from the rear of the head at the firewall. This was taken from the underside looking up.
[URL] ....
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My 04' GTI, 24v VR6, all stock, @ 107,000. I had a coolant leak from the t-stat housing. I installed all new housing, seals, and C-Pipe from GruvenParts. Already had a green CT sensor installed and the kit I got didn't come with one, so I didn't change it. Found out the leak was from the t-stat housing o-ring didn't fit the old housing. The new one fits perfect. I put coolant on the seals and burped it. Doesn't leak a drop. But still overheating, all the hoses have pressure and are hot, so no blockage....I noticed the fans were not coming on at all. The fans used to engage every other minute and run for 15 secs on high ONLY. Longer times, if not constantly w/ A/C on. I was wondering how to test the fans, sender, and/or fan control module to see which one of them isn't working. And which pinouts are what?
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My 2000 Jetta 2.0 has a coolant leak. I searched and found a lot of mentions of the flange on the driver's side, and I have coolant dripping from the bottom of the car in a location that seems consistent with that, but I felt all around the flange and the hoses that are connected to it and it feels dry.
Where else could it be coming from? (yeah, I could jack it up climb under and look, but I haven't had time yet). I also seem to have an oil leak around the same location, but the dipstick tube was cracked near where it went in to the engine so I'm hoping that was the source of the oil.
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Had a P2181 come up twice now... both on startup on a cool morning. Came on again this weekend. Monday morning I noticed a small coolant leak under the front of the car directly in line with the passenger headlight, but it only leaks if I park the car with the front down a slope. I parked uphill on Monday night and no leak in the morning, but I backed in facing downhill on Tuesday and had a small leak when I checked late last night.
So, last night I broke out the UV/black light -- G12 seems to fluoresce yellow'ish. I couldn't see much, so it is a small leak. There is some wetness on the bottom passenger side of the rad that's dripping over the back side of the front bumper/lip. No wetness around any other hoses, thermostat housing, temp sensor, turbo lines. But that's all from the top view. No time yet this week to get it up on stands to pull the bumper/splash shields for a closer look either.
I am little concerned tho as there's some wetness around the valve cover and when I pulled the oil cap my eyes suggested a bit of fluorescence under the cap and inside the valve cover. I'm a little worried oil and coolant may be meeting up somewhere... And to think... I was just in the process of getting geared up to do brakes and plugs before getting a modest tune (stage 1).
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So the car broke down on my wife while on the way to work again. This time the coolant is completely drained from the system. It is all over inside the engine compartment so it's impossible to tell where the leak actually is. Within the last year we have replaced the pump and thermostat so I am going on the assumption that neither of those are an issue at this point.
Although I figure a stuck Tstat might cause too much pressure to build up and blow a line. Ill cross that bridge when the time comes. I also assume there should be nothing wrong with just putting water in there just to find the leak and then of course draining and putting the proper fluids in. Is this a wise course of action to take? You never know with these German things. I would of course use the same type of water that is used to mix with the coolant already.
My wife also stated that she did not see any smoke coming out of the tailpipe and only the engine. This means the engine itself should be safe and no gasket blew inside.
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My car is a MK4 1.8t 2001 model.
Recently I've been losing a decent amount of coolant, and I noticed a puddle of water forming up right in front of my front right tire. I've inspected the engine bay, and the water seems to be coming from beneath the coolant reservoir itself, and forming a puddle under the windshield washer bottle. Which ends up dripping under the bumper in front of the right tire.
I didn't have any time to do more inspection, not even to take pics. The car is left at home as i don't want to drive it while it's leaking. Where to inspect or which parts to take off in order to spot the leak... No overheating has occurred, yet.
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My son was driving his 2001 jetty vr6 2.8 he said he heard a pop and then coolant was pouring out underneath. Radiator and hoses look fine reservoir too.it pours out as fast as you put it in. When underneath it looks like it's coming from an area to the right of the oil filter towards the belt side but not ask the way over by the belts more like the middle of the engine. I can't see anything from above just dripping from below. I am hoping not a head. Oil look good no coolant in it and doesn't smoke.???
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