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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3answers
46 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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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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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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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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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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1answer
804 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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4answers
17k 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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386 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
157 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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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
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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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1answer
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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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62 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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1answer
190 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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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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1answer
27 views

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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53 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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2answers
6k 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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220k 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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2answers
39 views

Can I use Prestone with already filled blue color coolant in Nissan Qashqai J11 Diesel 130ps in Germany

Update: I sent an email to Nissan Car delear from where I bought my car. I also called them and they redirected my number to the mechanic. He said that I could use any coolent but not red color ...
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1answer
3k 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 ...
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7k 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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Coolant spills out of the overflow tank at high pressure

My '98 Subaru Forester spills all its coolant with very high pressure and overheats. I changed the radiator cap and did a flush, but still have the same problem. I added stop leak, but that did ...
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1answer
199 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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1answer
233 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
70 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
177 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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Mini Cooper S 2010 Coolant leak

my Mini Cooper S Clubman 2010 had a leak from the water pump area. I couldn’t tell where exactly from. I took it to my mechanic and when he saw the leak he thought it was the water pump or thermostat. ...
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1answer
38 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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2005 Jeep Grand Cherokee Oil/Cooling issues

My son has a 2005 Jeep Grand Cherokee Limited 4.7L he bought several months ago. The other day he was driving and came to a stop and the engine died, and he couldn't get it started back. After ...
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1answer
73 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
267 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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1answer
59 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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43 views

Can I get by without a coolant drain bolt washer in my 1997 accord

I just did a huge timing belt and seals job that included replacing the coolant in my 1997 accord with the f22b2 engine. The drain bot washer fell out, and I didn't notice it, so I put back the drain ...
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1answer
127 views

How much coolant needs to be added to radiator?

I drive a 2001 Buick Century. It has had some coolant problems/leaks on and off. My father in law was helping me with the car, and he told me that the radiator must be filled to the tippy top up to ...
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1answer
672 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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69k views

Air trapped inside radiator after adding coolant

It has now happened twice to me that after adding coolant to the radiator, when I turn the car on the RPM's will bounce up and down and the engine is reving (between 1k and 1.5k RPM's). Normal idle is ...
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37 views

Anti-freeze to use on an old classic truck 1953 International

What type of anti-freeze should I use on my 1953 international pickup truck with a stock radiator?
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22 views

Coolant temps moving fast

My coolant temp goes up quick and keeps going up and down. And ac smells like vinegar. What can I do. On a 2017 Dodge Charger rt
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Why is my coolant brown and overfilled?

I have a 2011 Subaru Impreza, and lately the engine overheat light has been turning on. I stopped driving it. I took a look at the coolant reservoir today. It's full almost right to the top and it's ...
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39 views

Buying the correct antifreeze type for my engine

I'm looking to flush and re-fill my cooling system, and I'm struggling to work out exactly what type of coolant I need to buy. My maintenance book says I need 'Ethylene glycol-based antifreeze with a ...
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1answer
1k views

Can you have coolant in the resevoir tank while the radiator is low on coolant?

Suppose my coolant reservoir has gone low and but is still showing a little coolant. I was under the impression that the rest of the system is still full (even when leaking) since if the radiator was ...
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21 views

Coolant in the oil

I was topping off my oil and I accidentally splashed maybe an ounce of coolant instead, is this a huge deal or is a splash okay?
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280 views

Chevy Malibu 2009 coolant sensor

I have a problem with my malibu, I got a code on the obdii reader as though the coolant temperature reading is not correct, so in the car lcd on the instrument cluster I can see Coolant temperature : -...
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1976 Leyland Mini engine block coolant is blocked

Was doing routine radiator flush after engine overheated while on longer trip. Hasn't overheated on around town trips. Radiator coolant was clear green with no lumps or other material coming from ...
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54 views

Can I remove freeze plugs and put hose into water pump forcing some debris out or block? Or?

1953 Plymouth Cambridge Flat head 6 engine. Nothing fancy or modifications done. All orginal. Got car running/driveable but it sat outside for about 15 years under a tree before I bought it.
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2002 Honda Civic coolant coming out of coolant reservoir after shut engine off

The car does not overheat and is fine when it is on. Once the car is shut off, sometimes (50/50) coolant will escape from the reservoir cap, it is hot, it looks clean. What could this be? We just ...
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97k views

How long does coolant last in storage?

I recently needed to top-off the coolant on my car, but only used a part of the gallon-sized 100% antifreeze container that it came in - how long is it worth keeping the rest in my garage for future ...
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2answers
615 views

Losing coolant daily, but not overheating

I drive a BMW Z4 2003 with 93k miles and I noticed for the first time the other day the coolant fill up light go on when I was driving. I checked the coolant level and it was bone dry. so I filled it ...

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