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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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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Just noticed my coolant is a bit low. Could this have caused any damage?

02 Civic SiR. I just noticed the coolant is about an inch below the "low" mark on the reservoir. There are no operational problems, runs normally, doesn't overheat. Is this low enough to have ...
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52 views

Why Vw tdi taureg losing coolant quickly?

After 5 years VW taureg tdi needs coolant added in 4 weeks and car functions fine with no signs of leakage, why?
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Car running hot - bottom radiator hose cold

Have a 2009 Subaru Forester XT 5 speed manual. The cars temps are running high. 98c while driving at about 100km/h. Temps will drop to 80c very quickly if the car gets into higher rpms. Ie 4000rpm. ...
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chevy trail blazer 2005

I have just been putting water int he radiator (there is a leak) and ignoring the dex cool - so you put water in the radiator in the front of the engine and then put coolant in the other one (back ...
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2k views

Why do we need coolant in throttle valve body inlet in Opel Astra H?

Opel Astra H has an electric driven throttle valve. As I know, coolant in throttle valve body would control bimetal plate responsible for warming up. Why can't it control warm up process based on ...
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2k views

Radiator cap pressure and how it impacts stress on cooling-system and engine?

OK, if radiator-cap pressure is say 20-pounds as opposed to 18-pounds, won't the overall impact on the engine and cooling-system be more heat/pressure stress??? Sure, the boiling-point will be raised ...
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50 views

What to do with aftermarket radiator as far as installing engine coolant sensor

2002 buick century custom 3.1 I bought an aftermarket radiator for 2002 buick century custom 3.1. The new radiator doesn't seem to have a place for the engine coolant sensor. What should I do? Is it ...
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25k views

Expansion tank overflow without cap

So my coolant expansion tank developed a leak. So I replaced it but forgot to bring the cap from the old tank. Anyway I thought that I would try filling it up and running it warm anyways. So I turned ...
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112 views

My car wouldn't start

I drive a BMW 525i, recently hasn't been starting up, I drove to see my friends once and was fine, when I left them I try to start and would not dare to start, so checked on the radiator, the was no ...
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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 ...
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Dodge Ram 1500 SLT 4.7 Losing Coolant

I have a 2003 Dodge Ram 1500 with a 4.7 magnum, and I have replaced the radiator, thermostat and water pump. I keep having to fill the reservoir every couple of days. Fluid keeps coming out of the ...
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What are the reasons to mix oil & coolant?

Frontal impact vehicle is there fan motor touches the oil cooler,oil cooler slight impact is there, in coolant tank oil and coolant mixed, what are the reasons to mix the coolant and oil in this ...
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My radiator fan keeps on right after shutting off the car (Hyundai Accent 2002 GL 1.6)

My car radiator fan keeps on working right after shutting down my car, which is strange and never happened before. I suspected the temperature sensor, but through the OBD II kit, I am able to read ...
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384 views

Loss of coolant from under car

I just replaced top and bottom radiator hoses and car has new water pump. It's an '86 mercury grand marquis. Once I replaced everything and filled the radiator with 50/50, I cranked the car up. Soon ...
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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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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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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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73 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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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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63 views

Is this shop trying to take me? [closed]

hi hello greetings and salutations, oh... and HOWDY, yawl. Just acquired me a used and mysterious 1998 5.4 v8 ford van. I didn't know much about it other than it was runnin ok, I guess. Took her to ...
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What if I added a little tap water to the engine coolant?

I had my engine coolant level at "below LOW" and I was sure there is a leak. So I added 0,5l of tap water (full capacity of coolant is 5l) to check for the leak. It turned out it is not a coolant leak ...
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Coolant confusion - What type of coolant to put in this thang?

Just slapped a new radiator in my trusty steed -- a ford e150 1998 with a 5.4 in it. I drained the old radiator slop out like your'e supposed to... but half the old stuff is still sittin in the ...
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41 views

Empty radiator, engine temperature fluctuating

Hi and thank you in advance, I have a 2005 honda civic ex, everything stock. My engine temperature gauge has been fluctuating, mostly in city, on highway it stays in the middle range. Here is what I ...
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86 views

Polo 6 1.4 overheating at low speed and idle

Polo 6 1.4 2012 model overheat at idle or slow speed. When i drive in traffic it overheats. If I drive fast, it immediately starts to cool down again. I took it to the mechanics, they diagnosed and ...
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can too much antifreeze cause a p1281 code

2002 Jeep Liberty I added coolant to top off reservoir now I have a p 1281 code . Do I need to drain coolants and start over
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249 views

2013 Chevy Cruze leaks coolant

I discovered, upon random inspection, that my Chevy's coolant reservoir was empty. It has just made 100 000km. There was no leak I could detect. The car is rarely used as I stopped working. I topped ...
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138 views

Coolant level drop in new Bajaj Dominar 2019 UG

In Bajaj Dominar 2019 UG, the coolant level was a little below midline between min and max when it was purchased but after running around 200 Kms, I noticed that it's at Min level now. Though it ...
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990 views

Does a 2004 Ford Fiesta need bleeding for coolant change?

i need to change a cracked expansion tank and so will drain the coolant and replace it as i think that the previous owner was topping it up with neat water for awile. Does the coolant system need to ...
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44 views

What is the chemical difference between various brands of coolant additives (SCAs) for the cooling system?

In the manual of my vehicle, CAT recommends using their SCA over others. Is this just marketing or do different brands create different SCAs that affect longevity/chemical interaction/etc?
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coolant query bmw

i know this can be a pretty generic question and would apply to all cars but I'm no mechanic so here it goes. i have a bmw 318 2007. I have recently topped the coolant up correctly so the float rises ...
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34 views

Possible overheat

I have a 2011 Nissan X-Trail, 2.0 Turbo Diesel. Couple of days ago, we had a heat wave 39C / 102F. Normally the temp gauge gets close to the vertical axis of the cluster, so not really in vertical ...
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883 views

2014 Ford Escape - High engine temperature on start

It was a hot day today - around 90f, and the car was parked outside. As we were getting ready to leave, I did the remote start. We get in the car about 5 minutes later. Right As I’m about to start the ...
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158 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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37 views

99 Alero overheated due to low coolant, coolant light stays on after filling coolant

I was driving my 99 Alero and it started to overheat quickly like went from normal temp to red line in about 90 seconds. I shut the heat off and it dropped back down. Then the coolant light went on. I ...
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488 views

89 Hiace, Coolant full but when I open the radiator cap its empty? Is this normal?

recently bought a 1989 hiace an im worried if it is overheating. Check coolant level and it is perfect, but when the radiator cap is opened it is dry inside. Very little driving experience. Is this ...
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895 views

Did the shop use the wrong coolant in my car?

02 Honda Civic EP3/SiR I noticed the coolant was a bit low, asked the shop to top it up while it was in the other day. The manual indicates to use Honda Coolant/Anti-Freeze Type 2 part # OL999-9011 ...
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438 views

2000 Oldsmobile Intrigue disconnected coolant hose

We got this car really cheap from a friend since it leaks coolant (it runs out in about ten minutes of driving). My wife noticed the other day this hose that is not connected to anything (shown below) ...
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71 views

water boils in reserve tank

i use a dodge caliber and I have noticed the water boils in the reserve tank when the engine is hot and also when I park it overnight ,I have to refill the reserve tank the next morning because it is ...
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Radiator flushing concerns

I have a 1120 cubic inch radiator on my F250 460 Ford. The block should hold approximately 3 gallons, the radiator, about 4., however, when I open the petcock, take the cap off, and take the lower ...
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2k views

coolant flush in cold temperatures

I need to flush my coolant however I don't have access to a warm garage (without paying for a tow). Was curious if it's bad/possible to flush it outside when temperatures are below freezing? Any ...
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233 views

Odd overheating issue need help

I have a 2004 Nissan Xterra 3.3 liter V6. Tonight, it overheated while idling. I found out the coolant reservoir was empty. I filled it with what I had handy which was just cold water and this cooled ...
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VW Passat white smoke coming from exhaust

My VW Passat started giving out white smoke from the exhaust while in motion. One of the hoses of coolant system had swollen up on and was replaced. There is a smell of gas was coming from inside ...
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122 views

Oil in water coolant

I have a 2005 KIA Sorento Limited Edition suv which I recently bought secondhand...i just found out that black oil is present in the water coolant, is it safe to still drive it? What could possibly be ...
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30k views

On my 2017 Honda HRV, a blue thermometer light on the dashboard is always on in the morning indicating that the coolant temperature is cold

Maintenance Question. On my 2017 Honda HRV, a blue thermometer light on the dashboard is always on in the morning indicating that the coolant temperature is cold. Is this normal?
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I have a 2000 BMW 540i. I have been getting “check coolant level” from the computer recently.

Twice in a week the radiator has been low on fluid. I have added water to it to refill. I was told that I should use coolant/water mix instead of just water as it is most likely evaporating from the ...
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Oil in coolant recovery tank, how urgent is it?

I was going to loan my car to a friend tomorrow, and checked the oil and tire pressure etc earlier this week, but couldn't see the coolant level, so I just went to double-check it with a drinking ...
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154 views

Number of times you should refill and drain your cooling system to get pure water?

I understand before refilling your system after a coolant flush you should refill and drain the system several times with water. This is fine however last time I refilled and drained over three ...
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235 views

Drain coolant as much as possible through radiator drain valve?

I want to perform a complete coolant flush on my 08 Crown Victoria. I have some 50/50 coolant and I guess the remaining distilled water will over-dilute the antifreeze. Is there a way to drain most ...
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Cracks in coolant expansion bottle

Two years ago I had bad cracks in my coolant expansion bottle, so bad that coolant would leak though. I replaced the expansion bottle and after only two years there are already cracks showing. Not as ...

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