An alcohol based fluid that is miscible in water and used to remove heat from the engine. Also see [tag:cooling-system] for related components such as the radiator and water-pump.

learn more… | top users | synonyms

1
vote
1answer
57 views

How can I improve water flow within this diagram? [closed]

I'm hoping I'm asking this in the right place. I'm trying to determine how I can improve the water flow within a project I'm working on. The flow starts out at the large water pump on the bottom ...
4
votes
0answers
40 views

Saying its running hot but full of coolant and not over heating

2005 Hyundai Elantra. Says its running hot but has coolant and so far hasn't over heated and also can't turn on heat in car because smoke pours from vents into the inside of car.
1
vote
1answer
22 views

1978 Ford 302 is using a lot of water

My 1978 Ford 302 is using a lot of water. There is no oil in the water or no water in the oil and I cant find any leaks. What can I do?
9
votes
3answers
2k views

Car won't reach operating temperature

Here's a seemingly simple problem - I noticed that the temperature gauge of my mother's 2004 Opel Meriva 1.7CDTI won't ever climb above minimum. I checked the OBD readings to see if it was a defective ...
5
votes
2answers
121 views

Water underneath floor carpet - Mazda Protégé 2002

I just bought a Mazda Protégé 2002 and a few weeks later I noticed a damp spot on the back passenger side floor. Very wet and soaked. Later I noticed the smell grew larger and the vapor on the glass ...
3
votes
2answers
523 views

Ideal Coolant Temprature for BMW F20 116i

I've a BMW 116i F20 2012(turbocharged). Bought it at 2012. After two years of using it as default I got it coded with Gorilla so that it's default hp of 136 bumped up to 210. Now it's close to 29K in ...
5
votes
2answers
110 views

Why is antifreeze mixture not as stated?

To keep things short I poured 200ml of concentrated genuine ford super plus premium antifreeze (Ethylene glycol based) within a bowl. Then added 200ml of water to dilute the solution to a 50/50 ...
4
votes
1answer
23 views

Coolant type for 1977 Diesel

I have a marine 1977 Perkins T6.354 6 cyl, 6 liter turbo diesel. There are different types of coolant available and I've done significant research into this question and have not found a clear answer....
2
votes
2answers
142 views

Coolant disappears from coolant reservoir but no leak observed

I just replaced the water pump in my 2005 Ford Escape V6. I discovered that each time I fill the coolant reservoir with coolant and drive the car, by my next stop the coolant reservoir will be ...
3
votes
1answer
681 views

White smoke coming from hood in cold weather at a stop light? [2003 Ford Taurus SE, Vulcan Engine]

As winter approaches, I have been noticing that on some occasions in which it is relatively cold outside (20-30 degrees) ,and also early morning or night time when the temperature is low, that my car ...
2
votes
1answer
46 views

I put oil in the coolant by mistake in 300c hemi engine chrysler

I put a quart of oil in the coolant compartment in my 300c hemi Chrysler engine. Can I drive it about50 miles without hurting my engine to get my engine flushed
4
votes
4answers
1k views

How can I fix my cracked radiator temporary for a trip? Is there any way to do it?

My car is a Chevrolet Lumina 2001. About 2 months ago I changed the radiator of my car because it was leaking, the guy that changed the radiator got the radiator in a junk yard place for cheap price. ...
3
votes
0answers
168 views

E46 rough idle with coolant light on

The car is 2001 BMW 330i. I have changed ignition coil, spark and IAC. Last week, my car experienced rough idle. Then I changed the coolant temp sensor today. After adding coolant and bleeding, the ...
1
vote
1answer
294 views

2010 Mini Cooper S - Coolant leak from thermostat housing

For more than a month, I have been noticing coolant leaking from the thermostat housing. This was identified by the dealer and another Mini specialist mechanic. The dealer wanted the housing to be ...
2
votes
1answer
43 views

2000 Chrysler LHS coolant tank is giving off a bubbling sound when I park the car.

I recently had my thermostat replaced due to hearing bubbling in my coolant tank once I turn the car off I also noticed on the opposite side other coolant tank there was leaking on the ground not a ...
4
votes
3answers
460 views

1996 Rav4 not warming up properly when driving and heat not hot

I have a weird problem. I recently changed the radiator and flushed the whole coolant system during replacing the radiator. I also flushed the heating core by itself. The thermostat was recently ...
3
votes
2answers
78 views

No radiator fluid in resevoir

Obviously you shouldn't drive with no coolant, because in most cases obviously your car will overheat, blow a head gasket and all that fun stuff. I drive a 4cyl 2.5L Ford Ranger. One time I realized ...
2
votes
1answer
127 views

Coolant light is on even after topping off

2000 Pontiac Grand Prix Gte - My low coolant light came on so I parked let it cool down went to auto store n got the Dexcool antifreeze and filled it past the hot marker. Drove it on the interstate ...
2
votes
1answer
518 views

How does the coolant disappear?

If there is no leak? So how does the coolant level decreases as time passes? Does it get pressurized so it's level decreases? Or what happens? Since it keeps circulating to the engine and coming back ...
1
vote
1answer
58 views

Is there a way to guage when a 2015 Honda Civic reaches its normal coolant operating temperature?

Just bought a 2015 Honda Civic and then noticed that the coolant temperature gauge is not in the instrument panel. There are only two instrument cluster panel idiot lights dedicated to coolant over or ...
5
votes
1answer
3k views

Should overflow tank be filled when replacing coolant?

I have recently fully rebuilt my engine, minus the block and pistons. All the gaskets were replaced, valves lapped, valve lashes tuned etc. I did it because I had an overheating problem and a head ...
0
votes
2answers
109 views

Not using antifreeze in warm climates [duplicate]

I am just curious if antifreeze has any purpose in climates where freezing temperatures are guaranteed not to happen. Can 100% distilled water be used just as effectively to cool the engine just like ...
8
votes
3answers
2k views

How to dispose of engine coolant?

This question is pretty straight forward... How to properly dispose of engine coolant? Should it be taken to a treatment facility like used engine oil or is it safe to pour down the drain?
2
votes
2answers
356 views

The coolant is boiling when I shut off engine

I have a 2000 Chrysler 300m. A few days ago out of the blue my car cut off on its own and I was unable to start it for a few hours. I left it sit in the grocery store parking lot. Went back 3 hours ...
3
votes
1answer
152 views

What is the 2000 civic SIR coolant temperature sensor thread size?

I'm installing an Auto Meter water temp gauge and didn't receive an adapter with it. Anyone know the thread size of the stock coolant temp sender on a B16A2 engine? (Single wire)... I was going to do ...
3
votes
1answer
179 views

Honda Accord 1997 - Steam coming from small part of radiator, leaking coolant

After working fine all day, this afternoon I noticed my engine had heated up so hot the needle was above the red. I pulled over and there was steam coming from a small space on the radiator and it ...
0
votes
3answers
79 views

Do I have battery or engine problems?

Yesterday, I used my car to drive literally 2mins. Away from my dorm building to get to my class building and back because of bad weather. 30+mins. Later I come back outside and use my remote to ...
1
vote
1answer
280 views

Maruti Suzuki Swift Check Engine Light On And Engine Coolant Temperature Needle stay at 'C'

My Swift VXI has developed a condition. I have started to see the check-engine light on and the Engine Coolant Temperature Needle stays at 'C' after starting the engine. Engine gives a growling sound. ...
1
vote
1answer
43 views

oil in my radiator

I have a 95 f150. pretty much everything is original on it. I now have oil in my radiator but. looks like thick poo when I took the cap off. but when I checked my oil other than being a quart low the ...
2
votes
1answer
404 views

STEAM coming from under the hood?

This is my car ->(1990 Honda Accord EX Sedan 4 door 5 speed manual) Ok this is the first time I have ever seen a leak from my car. I bought it in Primo condition & I only use it for errands ...
2
votes
2answers
477 views

Motor oil going into the radiator and reservoir- Chrysler 300

I got the motor heads modified (think thats what you call it), timing belt and water pump replaced in March 2014. The last few months I've been having problems with my car over heating. It turns out ...
0
votes
1answer
400 views

Where is the engine temperature sensor located on a Mazda 323?

2003 Mazda 323 Astina, 1.8l, I am trying to figure where the engine temperature sensor is located in the car. How can I tell if it's faulty? I am only guessing it is because the car overheats, the ...
4
votes
0answers
504 views

04 Tahoe “Engine Coolant Hot” message

I am out of town with my Tahoe and getting the message "Engine Coolant Hot" on my dash message system. When it pops up I notice that the temp gauge goes up almost to the red line. Also the air ...
5
votes
2answers
413 views

How, and why, do you test coolant concentration?

In the owner's manual for my 2001 Ford F-150 (5.4L), in the section on "Adding engine coolant", it specifies the type of coolant to be used, and says it should be mixed 50/50 with distilled water. It ...
3
votes
2answers
163 views

Audi A4 1.6 2000 Coolant level sensor flashing

I have a problem with the coolant level sensor. After a minute of driving the temperature sensor on the car starts flashing and also alerts with beeping. Of course the coolant tank level is normal. ...
3
votes
1answer
338 views

95 Corolla overheats, probable coolant leak or maybe thermostat, need more advice.

Vehicle is a '95 Toyota Corolla. Was driving yesterday for about 5 minutes and glanced at the temperature gauge which I noticed was running pretty high (weather has been around 90 degrees f lately)....
3
votes
1answer
7k views

Flushing built up Rust and Mineral Deposits in Cooling System

The previous owner ran tap water in the cooling system for few years, and we have very heavy, mineral rich water locally. When I bought the car about six months ago, I drained the water, and put a ...
4
votes
1answer
243 views

Flushing coolant after driving only with water in

If I drive my truck for 30 min with just water in my system, would it be equivalent to just flushing it stationary (the proper way to flush it)? IOW, if I just drive around with a clean water refill ...
3
votes
3answers
7k views

Pros and cons of using straight antifreeze

I've heard from some people that they use straight antifreeze in their cooling systems and not 50/50. What are the pros and cons of doing that? E.g. does it reduce exposure to corrosion?
2
votes
1answer
320 views

How to test for radiator leaks?

There is coolant leaking from my 2007 Tacoma's radiator SOMEWHERE because there is leakage dripping from the lower right corner. I saw it when I took the skid plate off to replace the serpentine belt....
2
votes
1answer
160 views

ISUZU CUBIC mixing oil in coolant

ISUZU CUBIC - CITIBUS ENGINE - 6hh1, 8300cc, 6 Cylinder, No Turbo I have this Isuzu with the above description. It is mixing oil and water coolant. I did not find water in the crankcase but found oil ...
5
votes
2answers
295 views

Ditch water in radiator

I lost a coolant hose going down the road and all my antifreeze was gone. I found a puddle along the road and filled my radiator back up after I fixed the hose. Will this cause electrolysis in my ...
2
votes
1answer
490 views

2008 Toyota Corolla - Overheated while idling, coolant full or very slightly low

My car decided to overheat yesterday. It was noticed while we were waiting to pick someone up from the airport. We shut the car off until they arrived. (15 minutes or so) We then drove home with the ...
5
votes
2answers
37 views

1997 1.8t Audi Quattro - using coolant

I have an issue with my 97 1.8T Quattro using coolant. I've checked for external leaks and can't find any. The engine oil is still clean. Has anybody had this issue before? Is it possible for it ...
2
votes
1answer
112 views

Coolant leak - 4g63 sohc 2.0L non turbo

Recently I was experiencing coolant leaks in between the engine block and the wheel on the passenger side. This only occurs after the car has been driven aggressively and once the car slightly ...
3
votes
1answer
174 views

1994 LT1 350 in a Caprice wagon. Oil getting pumped into the coolant and flowing past the coolant reservoir cap

The engine runs well and the transmission shifts well. The only indication was the oil gauge dropping at a stop light. I immediately put 3 quarts in. There was nothing visible at this time. When I ...
3
votes
1answer
60 views

radiator stop leak

I woke to find antifreeze all over the driveway. My reservoir was empty. I took it to the radiator shop and they said I had to leaks. Then I remembered I had the warranty so I took it to the ...
2
votes
1answer
1k views

oily sludge in coolant reservoir

I have Chev Cruze 2010. There was a heatup and I noticed thick creamy sludge overflowing from the coolant reservoir lid. Mechanic diagnosed issue with engine oil coolant and repaired it. Later he also ...
1
vote
1answer
264 views

added too much oil [closed]

I added too much oil to my 97 civic lx, drove it about 30 miles. It started to overheat and antifreeze started to leak from somewhere. I drained the excess oil, which looked brown, and started it and ...
3
votes
3answers
26k views

Coolant level is below “low” in the expansion tank, dealership service says this is normal?

I took my car to the dealership for an oil change and inspection, which includes the fluids being checked and topped off. After the service, I took a look at the fluids in the car. There is a tank ...