Questions tagged [coolant]

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

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50 views

06 Ford Focus Automatic chugging in hot weather, showing below minimum coolant. add water, or risk the drive?

I have a 2006 Ford Focus Automatic which is chugging in hot weather and seems to lose some power. I'm hoping, but I am in no way mechanically minded(!), that because it is showing below minimum ...
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Standardised engine oil temperature range?

Does anyone know what the (more or less) acceptable standardised range is, for the oil temperature of a car engine? I understand that 40-120 degrees C, seems to be the acceptable range for the engine ...
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24 views

Consequences of coolant phase change in radiator

Im a Freshman at my Institute in India. In the application form for the Institutes Formula Student Team, I came across these 2 questions, which I'm stumped by. Ive searched for the answers but cannot ...
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2004 Chevy Tahoe burning oil & coolant, smoking, and turning oil to jelly

I have a 2004 Chevy Tahoe with about 180k miles. Its really taken care of with regular maintenance. Recently after driving 30min on the highway, the next time I turn it on white smoke comes out the ...
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1answer
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Two Questions Regarding Issues With my Subaru SVX Cooling System

I have a 1996 Subaru SVX with a leaking heater core and I wanted to know or confirm two things. First of all, I started the car and allowed it to idle up to warm and fluid levels were normal. I came ...
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1k views

radiator removed – is it still possible to flush system?

I'm replacing radiator and a/c condenser on my car. After hitting a deer, they both bent inward and most of the coolant leaked out of the car. I got both of them off the car and realized I forgot to ...
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2answers
1k views

Low coolant level and high engine oil in VW

I have a 1.5-year-old (mileage ~7000km) Volkswagen Vento with 1.6 MPI Petrol engine. Recently I noticed that my coolant level was below minimum and my engine oil level was higher than the max on the ...
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1answer
21 views

Coolant flush - didn't take specified amount of coolant

I did a coolant flush today on my 07 VW Rabbit. The car is supposed to hold 10 quarts of coolant, however both when flushing with distilled water and especially when adding coolant, the vehicle took ...
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10k views

Having Trouble with my 2003 Ford Escape oil light and coolant light

I have a 2003 Ford Escape V6. I'd have to say a couple of months ago my oil light popped on (most of the time only when I hit the brakes), then it would kind of blink a lot until I was on the gas ...
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2answers
430 views

2004 Chrysler Sebring Coolant Overflow

So my dad and I replaced the thermostat, outlet housing, and radiator within the past month (all went bad at once) So ever since replacing the system, we have been noticing that as we put coolant in ...
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1answer
161 views

2000 Honda prelude radiator issue

I was driving my Honda prelude and all of a sudden it shut down and wouldn't start again. I pushed the vehicle to the side of the street and opened the hood. The radiator frame where the hose ...
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1answer
40 views

2010 Subaru Forester xt coolant spilled and engine keeps overheating

I bought a Subaru Forester xt recent only had it for bout a couple of days car was running great till today I had put some power on the highway and went only one exit as I got to a light I notice my ...
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3k views

Why would a mechanic crank heater to maximum

This is a curiosity question. I recently had the timing belt, tensioner and water pump replaced on my Honda Odyssey. When I picked up the van it was really hot inside but I didn't think much of it. ...
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1answer
43 views

Confirmation of coolant valve on a Ford Focus

I'm prepping a radiator coolant change on a 2014 Ford Focus, and would like to confirm if the valve with a 1/2" diameter pipe shown in the picture is the one that needs to be turned to release ...
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1answer
62 views

Radiator not fully draining on Kia Sorento

I have a 2012 Kia Sorento SX AWD (that's the 3.5l V6). I am following the instructions in the service manual for replacing the engine coolant, but when I unscrew the radiator drain plug I only get ...
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197 views

Rebuilt engine: cranks but lots of white/grayish fumes

So today I cranked the engine I was rebuilding (Skoda Estelle/120 '72, RWD, rear mounted engine) and while it started, yes, but not without some struggling, I got a lot of white or light grayish fumes....
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What Coolant Hose should I buy?

1999 Range Rover 4.6 HSE (P38): I have a leak in a coolant hose from the reservoir to the throttle body heating plate. Can I use any heater hose with some hose clamps, or does it need to be the exact ...
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1answer
51 views

coolant in oil of 2008 Pontiac G-6

What do I need to do if coolant was accidentally put in where the oil goes of a 2008 Pontiac G-6? I haven't tried anything as of yet. I'm afraid to start the car. I didn't know if I needed to flush ...
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11k views

Astra H Oil found in coolant

What should I check/replace now? I already replaced a set of gaskets in the oil cooler. It did no help. Engine Z18-XER. Year - 2008. Nothing else happening. No white smoke, no external oil leaking, ...
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57 views

Engine coolant help

Hey I had water on expansion tank as ran out for coolant I have add pre mixed coolant and it sunk to the bottom and is separated from the water that was already existing in the expansion tank is ...
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1answer
8k views

Mechanics left the cap off my radiator. Can this cause proven damaged to my engine?

I had a service done on my car I drove my car home (40 min drive) and noticed the heating wasn't working. I checked under the bonnet the next day and there was no liquid in the radiator reservoir and ...
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481k views

Can I drive a car with only water and no coolant if it has a leak?

Recently, I was informed that a car I share ('02 Nissan Sentra) was close to overheating. I was told it gets close to the upper limit very quickly upon running the car. When I inspected the vehicle, I ...
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1answer
259 views

Oil on top layer of coolant Reservoir

So recently when I got an oil change, they checked my other fluids and notified me that there is oil in my coolant... again. Last year, I noticed oil in the coolant and took it to a mechanic, they ...
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4k views

Is it feasible to use the exhaust heat to warm the engine block?

I have around 4 miles of city driving to get to work every morning and in the winter my car never reaches operating temperature during my short trip. In fact, I am lucky if I get the engine temp above ...
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1answer
321 views

Can I use 3/4“ or 5/8” heater hose instead of 18 mm?

I have a '94 Honda VFR and two of the coolant hoses are 18 mm ID. 18 mm is a very unusual ID, and it would be easier to for me to go to the auto parts store and get a size they have in stock, which ...
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1answer
98 views

Coolant vs. air fuel ratio or O2 sensor

If there's a trace of coolant getting into the cylinder combustion chamber what would the effect be on the AFR or O2 sensors fitted to the exhaust pipe? I'm guessing zirconium sensors would read rich ...
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1answer
214 views

02 Honda civic LX 1.7-1.8 not sure. oil is leaking into coolant/radiator

so my wifes car had ran into some issues about 4 days ago when her car quit on her while driving from our sons school. she said that the oil light had came on moments before the car gave out and shut ...
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1answer
70 views

Coolant Leak/Bubbling/Whistling

New here! Will say right off the bat car knowledge isn't my strongest suit but i've been trying to tackle my latest problem. I've got a 2004 Ford Fusion. About a week ago when parking up i noticed a ...
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1answer
78 views

Power loss after driving over 15km (engine hot)

I have a 2010 Opel corsa D driven under 50k km. The car was parked outside for 5 weeks as I was in vacation (outside temperature -4deg to +6deg). As I came back I found a strange problem every time I ...
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1answer
50 views

Coolant flows straighr from rad to muffler?

Had my 2008 pathfinder towed last week it broke down and I thought it was a starting issue due to corroded post clamps, replaced those and it runs, but... now filling the rad the fluid runs straight ...
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Can salt water be used in place of antifreeze?

The key feature of antifreeze--as the name implies--is that it doesn't freeze. When I was a kid, my Dad used to use just plain water in the radiator of his 1967 Oldsmobile Cutlass during the summer. ...
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3k views

oil is mixing into coolant water

i have an opel astra twintop 1.6 2009. oil is mixing into coolant system. there is oil in expantion tank. almost all the oil goes into expantion tank. Can you show me the way how to solve it? we ...
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1answer
482 views

Which type of coolant is most suited for a Volvo XC90?

I have a 2006 Volvo XC90 that is low on coolant, and I want to change it. Since the coolant is low anyway, I will flush it, but I'm wondering what type of coolant to get. The manual, of course, ...
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181k 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 ...
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1answer
76 views

I've got oil in the coolant, but no coolant in the oil - Renault Twingo RS

I just checked the fluids of my Twingo RS and made de discovery that there is oil in the coolant. So naturally i thought headgasket. But there is no coolant in the oil, no smoke out of the exhaust, no ...
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Record -0° temp in Arkansas and my '10 Jeep Grand Cherokee is overheating plus heater stopped working

I had a good amount of 50/50 AF but when the temp dropped to record low of -0° my heater gradually went out over several days. I added a little concentrated AF and next day it overheated. Should I ...
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2answers
797 views

How to flush a cooling system after head gasket failure?

I recently replaced the head gasket in my Renault K9K (700) 1.5 DCi, due to a cylinder/cooling system type failure. As such, the cooling system is full of partially burned diesel. Despite having ...
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1answer
37 views

BMW 2007 530xi starts and dies after a few seconds

A few days ago I replaced my upper coolant hose due to a leak. After replacing the hose, I decided to pour distilled water in the coolant reservoir ( so that I don't just waste any coolant ) just to ...
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1answer
25 views

Coolant and How much

I was wondering how much coolant my 2014 Chevy Spark LS needs. I have one gallon in my garage but is that enough.
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Coolant level fluctuates too much

I have a problem with the coolant level from my car (Renault 1.5 dCI engine). It fluctuates too much. I left home with the coolant level at the minimum mark. After approximately 10 minutes I stopped ...
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0answers
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2004 Prius and faulty inverter coolant pump, code P0A93

I bought a 2004 Prius with 270k miles on it about 1.5 months ago. I’m a delivery driver, and drive about 200-300 miles per day. About 1 week after buying the Prius, the code P0A93 popped up for the ...
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Can I add food coloring or color dye to the cooling system? (UV dye won't help my situation)

Context: My 2004 Dodge Neon's transmission cooler failed, causing the transmission fluid and antifreeze to intermix in both systems. I replaced the radiator, thoroughly flushed the cooling system, and ...
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1answer
204 views

17 outside and I just have water, no anti freeze, am I OK?

It's 17 degrees outside and I have no antifreeze in my car, will I be all right for just one night?
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3answers
74 views

Can I add 50/50 to plain water

First don’t make fun of me! My car has plain water in it now and I just changed the thermostat. I can’t change the fluid on my own. Is it okay to top it off with 50/60 antifreeze even though the car ...
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19k views

Why do you people run distilled water on cooling system and flush it, is it neccesary?

I'm trying to change coolant on my car. I saw a video of my car where they drained the existing coolant, added and ran distilled water, drained it and then finally added coolant. Why are they doing ...
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Bizarre Lack of Heat From Heater Vents - 2010 BMW E91 318d

I have an issue I'm struggling to pin down with my 2010 318d 3 Series Touring: All air vents blow cold or at best, luke warm air into the passenger compartment, even on long journeys when the vehicle ...
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1answer
250 views

Transmission fluid and coolant intermixed in transmission and cooling system. How thoroughly do I need to flush them? Recommended flush technique?

So my 2004 Dodge Neon's transmission cooler failed. (Neons are notorious for this.) This caused transmission fluid and coolant to mix together, both in the automatic transmission and in the cooling ...
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3answers
45k views

Do I need to use Genuine Honda Coolant?

I have a 2003 Honda Accord. Do I need to use Genuine Honda All Season Antifreeze/Coolant Type 2? The manual says the above is a premix of 50/50 antifreeze and water. It also said that I can ...
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2answers
7k views

How can an A/C system consume coolant when in use?

I drive a 2007 Subaru Outback. Recently, I've noticed that when I use the air conditioning, my coolant level drops ever so slightly. The rate of loss seems to be related to the amount of time the A/C ...
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225k views

What actually happens when there is not enough coolant in a car engine?

I know that a lack of engine oil can destroy an engine, so I was curious as to whether it is just as bad to drive a car with a very low engine coolant. What is engine coolant? What exactly are all ...

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