Aurora :: 2001 / 3.5L - Coolant Seems Low But No Leakage
Jul 25, 2012
Just had to replace the steel line that runs from the motor to the firewall with a rubber heater hose due to the steel line rusting through and spraying coolant around. (i left a steel section above the head along the firewall due to heat concerns. I refilled the system through the reservoir but I hear coolant sloshing around in the heater core and the low coolant light is popping up.
The coolant is not low in the reservoir but I really do not feel like the lines were filled when I added coolant to it after the repair.
The temp sensor indicated the car was running normal temp range and the car ran fine when I gave it a 6 mile test drive following the repair. No leaks in the new hoses.
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Small coolant leak on drivers side when car sits over night. Car has 3.5L engine with 118000 miles. Purchased used a few months ago. Just started leaking a week or so ago. Dash came on with low coolant level. Added a small amount of coolant ( at the add coolant level line) and then started noticing small amounts of coolant under car in the mornings.
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Bought a 1988 Toyota Celica GT Convertible. I am losing coolant. So far I have done the following: used a leak down pressure tester that shows I have a leak; looked under car for leak and didn't find one, put UV test fluid in radiator, doesn't show any external leaks and doesn't detect any coolant in exhaust; there is not coolant dripping from the heater (passenger side floor); the car does not overheat - the temp gauge shows it in the middle; the car runs great; just had emissions tested and passed with flying colors.
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I have a 2006 Prius. I must admit that I've never been satisfied with the A/C performance, but now I'm even less impressed.
I had the A/C system serviced at an "after market" place as our dealership calls them (about 2 weeks ago). They added just under a half pound of coolant, oil, and UV dye. The system was much improved after the "after market" shop serviced it and stayed that way right up until it stopped cooling. Two days ago, the A/C stopped cooling and I'm in town so I stop by the dealer. They do the same basic checks I did with the same results - checked the fuses-OK, checked the lines and connections with a UV emitter-OK.
They evacuated the system - removing 0.16 pounds of whatever was left in the system - and recharged the system with 1.06 pounds of 134a, etc.
Neither of us could detect a leak, assuming there was actually dye in the system.
There is no problem with the compressor .
They see no other issues with the A/C system, it was just out of coolant.
Where did the coolant go and why is there no visible evidence of a leak?
Aside from monitoring its effectiveness and checking for dye leaks, is there anything else I should check?
Should the sight glass have enough dye exposed to detect inside the system with the UV emitter?
What should I see (or not see) in the sight glass?
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Can swap the 3.5l for a 4.0L? Are the trans different? I know this year offered both the 3.5L and the 4.0L.
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I have a 2001 Oldsmobile Aurora 3.5 V6. Last Thursday, I started it cold, drove it about 500 feet, and it just stalled. I didn't lose power or anything, it just stalled; I did lose power steering though. Something that may work is that the battery light came on and started flashing when the car stalled, and continued to flash when i attempted to start it.
The car cranks, it just never turns over. I do not lose power like the battery is draining when I attempt to start it (The dummy panel shows the battery dropping to 11.7V, and returning to 11.9/12V when I stop trying to turn it over. I can do this for 15 seconds at a time (It automatically stops trying to turn after 15 seconds) for a long time, and the battery never drains, so it is as if it is charging as I am trying to turn it over. (Not sure if that is important to note or not).
I had it towed home, did nothing to it other than try and start it (which didn't work). Let it sit the weekend, and it started with no issues Monday. Drove it to work, almost made it, and the same thing happened. Same exact thing, battery light came on and started flashing, and the car stalled. Had it towed back again, and it hasn't started since.
I have checked all fuses and relays, nothing shows signs of failure there.
When I turn the key, I can hear the fuel pump getting power also.
Here is what has happened to the car in the past year (excuse me if too much detail is included):
Replaced the Alternator
Replaced the Starter
Replaced all break lines
Replaced all brake pads, rotors, calipers, bearing/hub
Replaced fuel line
I have not tested the fuel pressure, because I do not have a tool to do so.
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So, whenever I park the car after a trip it always leaks fluid when the A/C was on which I know is normal but now it seems to leak a lot more and I'm wondering if that's where all my coolant goes. Where exactly does it drip from from the A/C? Is that somewhere in the cowl?
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Ave an 02 Camry 4 Cly
Noticed small puddle of coolant under the car - then noticed overflow empty and radiator a little low on fluid. Noted some coolant below the thermostat.
After filling back to proper levels, ran engine for a while with no apparent leaking. Took a couple of short trips and inspected after each trip and no leaking noticed.
Checked several hours later and noted coolant below thermostat housing and on ground. After a couple more trip noted coolant level dropping again.
What would cause fluid to leak after engine shut down? Could be coming from another location, but my attention is on the thermostat at present.
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A couple years ago noticed the coolant + inverter reservoir was on the low side. Took it to the dealer who pressure tested it and didn't find anything wrong, added a bit, and said good to go. Roughly 55,000 miles.
Today at close to 85,000 miles the coolant in both the radiator tank and the inverter is again touching the "L" mark. They were filled up to the middle/almost topped off after the dealer visit.
Just curious if others have had this issue and/or where to look. I haven't touched the coolant since purchasing at 42,000 miles in 2011.
This is the only issue I've had with this car so far. But it scares me, as coolant loss can be a big deal! Something as small as this isn't as concerning unless it's leaking some place I don't know about, or being consumed in the engine.
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My prius has a coolant leak, which look like it's coming from the throttle body. The stealership recommends a new throttle body. The mechanic said he has not seen coolant leak from the throttle body before. Is this the only fix to replace the throttle body?
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A few months ago I purchased a 1990 735il and have had cooling problems with it ever since. It started with intermittent leaking at the seam where the lower radiator hose meets the thermostat housing. Eventually, the lower radiator hose blew out. I replaced it, but as soon as I started the car it immediately overheated. My next step was to change the thermostat. (Note: When I removed the old thermostat it was obvious that the person who had installed it had snipped off the inner portion of the thermostat. I don't know why someone would do this, but I figured it must have some significance). When that was done I thought I had solved the problem. The car drove perfectly on a 50 mile drive after replacing the thermostat. A few days later I was sitting at idle and the car began overheating again. I shut it down, let it cool off and drove home without issue. It now seems to run fine and the temp gauge stays at 12:00 as long as I keep driving, but when at idle it seems to overheat.
It should also be noted that there seems to be some oil getting into the coolant system. I am making plans to replace the head gasket at this point, but only seems to be a one way problem as there is no evidence that coolant is getting into the oil.
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I got a 99 v6 passat and it looks like I'm leaking coolant from the back of the engine, like under the TB.
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our mechanic told us we had bad belts in our tires, and we should replace them. So we did. Over $500 later, the car still wobbles. It only happens on acceleration, and it starts somewhere around 40 mph, gets worse as I drive faster, and then around 55 mph it goes away. It does not happen on deceleration. We've seen posts on other pages where people have replaced CV joints, both front wheel bearings, both axles, tie rods, control arm bushings... but that doesn't solve the problem.
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2003 Pontiac Montana 3.4 L
225000 Kms
Intake Gasket replaced already at 60,000 kms (yes a while ago)
Recently, noticed a major external coolant leak at the front of the motor (passenger side). It only leaks when at operating temperature and under pressure. It does not leak when you first start the engine, it takes a while before it leaks.
I replaced the rad cap, just in case it was faulty. Upon the second test, after getting it running good and hot, it leaked again. But only when at operating temp. It is not overheating.
Problem is, as the coolant is leaking out, the main drive belt is splashing the coolant all over the place and thus I am having a heck of a time pinpointing if it is a head gasket or intake manifold leak or perhaps somewhere else.
I can't take things apart to get a better view, because it needs to be running at operating temp to get the leak. If I pull anything apart for a better view, I won't be able to start the engine to reproduce the leak.
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I'm sitting at my Toyota dealer where I bought the car 3 weeks ago. My car is in because it needs to have the engine coolant pump replaced due to a leak. Is this a common fix for the gen 2 Prius? Fortunately this is getting covered under warranty.
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My 97 Concorde 3.5 w/ 223k developed a second coolant leak from the front of the engine. Using a pressure tester I found it was leaking from the water pump housing o-ring (pass side) and also the o-ring behind the water pump itself. I did this exact repair 3 years ago including new pump! I do everything meticulously so this has me a bit frustrated. I've got it all torn down and cleaned up real nice, except there seems to be a lot of pitting in the o-ring grooves on the back of the water pump housing, mainly the large one.Can I use high temp RTV oil-resistant sealant in the grooves and then put the new O-rings in to make sure they don't leak from the pitting?
Also, I found the cam thrust plates to have hard, cracked seals.
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I was changing the engine coolant on my 2005 Prius today. When I went to fill up the tanks, I noticed a small pool of coolant right under the filler pipe. I thought I might have overfilled something, but when I jiggled the filler pipe, I heard an air leak. It looks like there is a bad seal between the filler pipe and the radiator. I also noticed that my coolant recovery tank was empty. I never noticed this before so I don't know if this issue is related.
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I cannot control the windows, locks, trunk or gas release from my 2001 Aurora. The fuses are under the back seat, which I took out. I checked the Drivers door module and the fuse is fine.
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I have a 02 cavalier 2.2 it just started leAking coolant when in a drive thru. Steam started coming up from hood. When I looked under the hood the expansion tank was hissing and it looked like the antifreeze was coming out of the overflow tube at the top of the tank. What should I do? It is sitting still at the parking lot
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I've had to replace my radiator twice due to it overheating. I am noticing coolant level going down but I'm not seeing any signs of an external leak. My garage is saying it is probably internal and going into the engine. Says I probably have to replace the head gasket but that will be very expensive.
Could I get some further feedback on what it could be and what else I could do? I am also getting a check engine light on a "lean mixture" issue. Not sure if they are related.
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I have an 03 Explorer with the 4.0 engine. There is a strong smell of coolant and the reservoir does go down slightly once a week or so. There is No Leak whatsoever that I see, I have checked under the hood, under the vehicle, under the dash, everywhere...nothing. Where is the coolant going? This seems to be a common problem, I work at a quick lube and almost all of these explorers are low on coolant when they come in.
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