Questions tagged [cooling-system]

System which removes excess heat from liquid cooled internal combustion engine. It also helps maintain the engine temperature at a consistent level. The cooling system encompasses the radiator, water pump, thermostat, hoses, heater core, overflow reservoir, and anti-freeze (or coolant).

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Do mobile air conditioners exists for cars?

Even if my home has no integrated air conditioner, I can one it in my room by buying a mobile air conditioner. But if my car does not have any air conditioner, can I create cool air with an equivalent,...
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3answers
43 views

Is it bad to let a car sit for a few weeks with an empty cooling system?

The cooling system in my car is full of rust. It's quite corroded. I have drained and flushed the system but need to wait for some parts to be delivered in 2 - 3 weeks. The system is now empty of ...
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30 views

temperature gauge on my Ford Focus keeps dropping to 1/4 when temperatures outside at below freezing

I have had my car into a mechanics shop under warranty numerous times over a 3 week span. My first initial problem was that my temperature gauge went from sitting in the normal spot (half way on the ...
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33 views

Car not staying warm in gear

I have a crystler 2013 town and country van. I changed out the thermostat and flushed the coolant. It will start to heat up in park but when you put in gear to drive only maintains heat for 10 miles ...
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1answer
25 views

Thermofans not staying on long enough?

I am working on a 1988 Honda Accord (2lt, injected, A-series engine) that has been sitting a while. I am getting an issue with it overheating (after about 20 mins idling). The thermofans kick on at ...
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1answer
58 views

Boiling coolant and car is smoking

I have a 1999 civic EX and today while going to work I was stuck in traffic for a long time due to a snowstorm. After a while my car started smoking crazy. The smoke was coming out from under the hood ...
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1answer
25 views

Jeep Renegade 2015, engine cooler light

This might be very stupid but I only have this car since 2 weeks (bought used). Today I noticed, that one of the red lights on the spectrum of the cooler temperature measure is on. It is the one ...
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1answer
51 views

Will using CLR in a cooling system flush damage seals, hoses and gaskets?

My car (88 Accord) has a significant build up of rusty sludge and gunk. Even after a few normal flushes and one with a radiator cleaner product, the gunk remains. Someone suggested using CLR to clear ...
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5answers
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Rusty coloured coolant?

I am working on a 1988 Accord (CA) that has been sitting for some time. There was a problem with the cooling system - air pockets and bad water pump bearing - so I replaced the pump and drained the ...
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1answer
44 views

2014 CX-5 hot air - possible overheating?

Hopefully someone can shed some light into what's going on. For the last couple of days we have been in a cold snap around -30C. I was driving the car and noticed that the ambient (outdoor) ...
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4answers
141 views

How long can a bad head gasket last? [closed]

Coolant is dropping in my radiator. There is bubbles of gas coming out the radiator when the car is running. So, this seems like a bad head gasket. I think my options are to change the head casket or ...
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1answer
54 views

How long can I run radiator flush in my car?

My cooling system is quite nasty and needs a flush. I followed instructions on radiator flush, which said to run the car no more than an hour. However few tutorial videos online suggest running ...
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2answers
60 views

HOLD light flashing, engine temperature gauge “C”

My 2009 Chevy Aveo 5 with automatic transmission has an issue that started today; on the way home on the freeway, the HOLD light started flashing. I noticed later that the coolant temperature gauge ...
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0answers
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Toyota Prius 2013 (XW30) Coolant Expansion Tank Black Plug

Recently a friend of mine got used Toyota Prius 2013. And after driving it for a few days he noticed that the coolant is below the minimum. Topped it up but few days later it's gone again. It seems ...
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1answer
36 views

What damage could cause by broken coolant resovoir cap?

My Honda jazz coolent resovoir cap broken. I'm planning to replace just the cap by myself. What damage could cause by broken cap besides overheating ? Do I need to do coolent replace ? Is air could ...
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2answers
80 views

Will an electrical cable tie secure a rad hose for 20 kms?

In an emergency to get one home etc, would electrical ties hold a rad hose on, if one of the hose clamps broke? Cheers
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1answer
70 views

Rubber pieces found in engine coolant

ISSUE: I found small pieces of rubber debris in the coolant. They are a little smaller than part of a fingernail clipping. The rubber hoses have flaking rubber when inspecting them on the inside. ...
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1answer
134 views

Why did my temperature go down when I turned on A/C?

My car has been running hot and I'm going to be putting in a Thermostat to fix this. However, I have noticed that when I turn on my Air Conditioning, the temperature goes down. I would expect ...
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0answers
60 views

What's this loose o-ring in radiator neck?

2002 Toyota Corolla. Changed out the coolant on our friends car to find a beat up square rubber o-ring loose in the radiator neck. Photo below with it resting on the radiator. Please advise if this ...
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1answer
65 views

How can I tell if my radiator is bad?

I have a problem with overheating (1988 Honda Accord CA/LXi). I've replaced the water pump, radiator cap and thermostat, with no change. I've flushed the system and the coolant came out clean. There ...
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1answer
53 views

Are some engines produced without coolant overflow containers?

I bought a used mini excavator (Terex HR1.6). I followed the overflow hose from the radiator. It ends in free air – i.e. no overflow tank or valve or anything. I have the machine's manual, and I can'...
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1answer
41 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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2answers
76 views

Solution to hot water coming from radiator to the coolant tank

I have a Toyota Noah 2005 and after driving,hot water fills the coolant tank form the radiator hence always emptying the coolant tank and adding more to the radiator.Would like to know the solution to ...
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1answer
31 views

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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0answers
23 views

Coolant cycling too high and low after (motorcycle) accident

A number of months ago, I hit a deer while riding a 2018 Triumph Street Triple R (motorcycle). Since then, the motorcycle frequently drops a significant amount of coolant out the coolant waste tube, ...
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1answer
60 views

What are the effects of using sulfamic acid to clean a radiator that is plugged up about 75%?

I've got a 1991 school bus with a CAT 3116 that gets a little hot on the highway and the stop engine light comes on. Only the top 25% of the radiator gets hot while the bottom remains very cold. I've ...
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1answer
43 views

Audi 100 1990 Sedan,cooler hose bulging = distaster waiting to happen, right?

I must admit I haven't really paid attention to the coolant hoses, but today I noticed something. That coolant hose leading to the radiator doesn't look healthy with that bulge and there is also a ...
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1answer
46 views

Trouble shooting cooling system

Is this the water pump, or what? I have a 2008 Lincoln MKX and have been experiencing a leak from one of the hoses from the coolant tank or radiator for several months according to one mechanic. It ...
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1answer
65 views

Why does car get hot when at a stop light

Vehicle vibrates a little when at a stop and starts to overheat , once I get going the temperature starts dropping back to middle. What do you think the problem is?
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1answer
38 views

Can I use a lower ratio of coolant to water in a hot climate? (N. Texas)

I'm looking at a fluid flush for my 2010 Nissan Altima. I want to ask if there are concerns or benefits to using a lower coolant ratio. I travel to Kansas for the holidays, where it's quite a bit ...
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0answers
32 views

Nissan Versa 2007 Coolant Change Problem

So I changed my coolant, online it said I need 6 ltr but it only took 5 and that was including filling the overflow tank to the max level, I had it jacked one side high and tried to burp it. I took it ...
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0answers
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Does coolant have a shelf life? [duplicate]

I have found some old opened bottles of coolant (green, undiluted, aluminum safe) in my garage, they've been opened and partially used. The remaining coolant has been there for somewhere between 5 ...
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0answers
34 views

Elite i20 AC problem

My Hyundai Elite i20(2017 model) was running fine till I gave service in one of the hyundai showroom. Last week I gave my vehicle to service at authorised Hyundai showroom(odometer - 33000km). After ...
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0answers
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My toyota vios 2008 green temp light keeps blinking when switch on and car won't start. How to fix this?

My toyota vios green temp.light came on and the car won't start. The cooling fan keeps on running . But everything seems to be ok. I replaces the etc sensor but stil it won't start. Any idee what the ...
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1answer
394 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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0answers
37 views

2006 Hyundai Trajet G4GC engine not getting hot enough

This is a 2.0 petrol engine. Already had the t'stat replaced twice. When the car is stationary in the P gear, the coolant temperature gauge will slowly reach 40-45% of the scale and stays like that. ...
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1answer
162 views

What actually happens when there is no Thermostat ( bypass thermostat)in coolant system?

What actually happens when there is no thermostat (bypass thermostat) in coolant system?
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0answers
28 views

Coolant smell outside of car

I have a 2010 Nissan Murano. Last summer (2018) I started smelling coolant when I get out of the vehicle or am at a drive thru with my window down. There is never any coolant on my garage floor. The ...
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1answer
35 views

Car over heating when idle

My Mazda 6 started overheating during a heavy traffic day. Ever since, I noticed it would only start over heating only when the car is idle at a light, traffic, or parked for about 5 minutes and then ...
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1answer
38 views

2011 Chevy Silverado Engine Temp Fluctuates when cabin temp set high

I have a 2011 Chevy Silverado 2500 with a 6.0 L. I never noticed this before because I was living in the south and never really had to increase my cab temp too much. Well I just moved to northern MI. ...
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0answers
15 views

Mini cooper 2003

Hi I have an issue with my 2003 mini. Temp is only running at quarter and after a while if I am stationary it will go up to half way and no further, but when it his halfway it will make a farting ...
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0answers
88 views

Why may heating gradually stop after some time driving (and doesn't work in passenger side at all)?

This is a somewhat strange problem. Heating (in driver side) seems to work normal - after somewhere between 15-25 mins. driving or so, it gradually stops working. The warming in passenger side doesn't ...
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0answers
29 views

Air Bubbles In Radiator Geely LCX 1.3

we have a Geely LCX 1.3. The radiator blew a few months ago and we immediately stopped driving it. First we had the head skimmed and pressure tested and replaced the gasket and also had the radiator ...
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0answers
36 views

Engine coolant not hot

Recently bought a 85 bronco ll with a 2.8 motor. Engine coolant won't reach normal temp. Changed the thermostat, flushed and refilled coolant, but still had the same problem. Replaced radiator cap, ...
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1answer
25 views

2007 nissan pathfinder

-I've went down the list,basically a process of elimination,ive changed water pump,thermosatat,flushed system, changed hoses,camshaft senser,flushed heater core,changed heater core sending unit,and it ...
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1answer
32 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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2answers
82 views

2000 Ford Expedition XLT 5.4, Possible Toast Heater Core?

I recently just flushed my heater core on my 2000 Expedition. I did a full flush, then a reverse, then another flush. Filled heater core with anti-freeze to insure air didn't get trapped in the core. ...
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0answers
43 views

Drove exactly a mile on water in the reservoir. Overheating after coolant added. What could be the problem?

So I drove to the gas station to put air in my tire when I realized I forgot to clamp down a coolant hose going to radiator after working on swapping the alternator. My hood was steaming and there was ...
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2answers
124 views

1990 Honda Accord Overheating

First let me state I've been an Auto Tech since about 1967, so this is kicking my butt. I've replaced the water pump, radiator, lower hose, thermostat, fan sensor, coolant sender, engine temperature ...
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1answer
29 views

2008 equinox doesn't have heat on idle and very little driving

getting very little heat while driving and idle if i turn up fan inside car goes cold, temp gauge goes to half and stops, also getting a noise like a loose belt but once the car is warm noise stops?

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