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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29 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
24 views

AC works better when driving than when not driving

The weather outside today was more muggy than a 20 ounce mug with a pugs mug printed on it... being acquired in a mugging incident. I mean it was hot. Hotter than a hot place. So... in my '98 Ford ...
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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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Have a feeling Mercedes V8 W164 Engine is Running Really Hot

I have recently purchased a 2006 Mercedes Benz ML500 W164 with approx 215K KM/130K miles on it. A few days ago I was showing it to a friend who after a drive inspected the engine and mentioned he ...
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1answer
55 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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03 Blazer 130,000 miles

Hey guys in need for some serious help. After spending 2000 on repairing my 6 MO. Old truck (and not to an acceptable standard), i have a crack down the plastic part that holds in my radiator and im ...
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1answer
556 views

Mazda 3 SP leaking coolant

I have a Mazda 3 SP 23 2005 _ manual _ 2.0 Liter unleaded. I have noticed that some cooling liquid started leaking on my parking spot a week ago. The leaking stains are becoming bigger day after day. ...
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1answer
511 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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53 views

Reservior keeps blowing the cap and coolant

I have a 98 Volvo S70 T5 2.3L Turbo. I've replaced my thermostat, I know may head gasket is good because I've done the checks to see if its bad and the oil isn't Milkey, the cylinders when I replaced ...
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8answers
20k views

Can radiator cool down a car too much?

Recently they replaced my stock radiator with aftermarket one (at dealership, so I hope they knew what they were doing), and since then I feel that a car is not warming up enough. Even if I warm it ...
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3answers
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Why is coolant in the reservoir boiling?

This is a 2011 Chevy Cruze 1.4 L Eco with 116xxx miles on it. The other night I made it home from driving about 30 minutes from work and when I turned the car off I heard some noises. I looked under ...
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2answers
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Holden Captiva - Lots of oil pouring out the radiator expansion tank

On my 2012 Holden Captiva 2.2 diesel car the radiator expansion tank has filled with engine oil and now the oil is pouring out of the expansion tank. I am at a loss to why/how this has happened. Any ...
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1k views

Why does my Honda Fit Sport overheat?

I have a 2007 Honda Fit Sport. The car has been overheating. I have taken it to all the good mechanics, yet the problem persists. When on a highway at speed up to 100 (kph?), the car starts to ...
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1answer
240 views

Will driving car without coolant cap do long term damage to car?

So this morning I did something stupid. I had checked the coolant in my car and it was fractionally below the min point, but still fluid in the tank. I poured in some water so it filled to between the ...
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1answer
763 views

2014 Chevy Spark issues with excessive coolant usage

Why must I add coolant every few days to my 2014 Chevy Spark, It seems excessive, but I haven't noticed any fluid on the ground?(😟)
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398 views

Am I losing coolant during driving?

I have a 2007 Mazda6 with 3.0L V6. I had coolant changed while in for routine maintenance two months ago. Since then I have noticed the radiator fans running under conditions that they never did ...
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Why does my car sometimes blow cold air while the heater is on?

This started about a week ago. I put the heat on and about after driving a couple of miles with the heat on it would randomly blow out cold air. Sometimes if I turned the heat off or switched it from ...
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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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4answers
56k views

How long should I wait for engine to cool down before I can check coolant?

I know engine temperature should go down to "C" mark before opening radiator cap. However I'm finding that the temp just stays on normal for a long time. I think I've read people say you need to give ...
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1answer
2k views

Honda civic 03 overheating, checking the cylinder head and block for cracks?

I have 150k on my 03 Civic it has overheated several times. I can drive the car around town without it overheating, but when I drive it on the highway for an hour and it will overheat. I thought I had ...
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1answer
479 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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1answer
42 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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1answer
862 views

Overheating 2009 Nissan Cube

I have a 2009 Nissan Cube. A few weeks ago the car overheated and I realized that it was out of coolant. I added coolant and a week later it overheated again. I realized that the Radiator was leaking ...
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28 views

On cars with 2 Thermostats, how exactly does coolant flow through the block?

How does the coolant flow in each of the following 3 cases: 1) both stats closed, 2) stat at the water inlet open (nissan calls this stat the thermostat) 3) both stats open (nissan calls the stat at ...
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1answer
1k views

How should I flush out a head gasket sealer?

I purchased a 2002 Ford Taurus, little knowing that it had a head gasket leak. After it was driven for a week or so it started overheating. I am assuming that the person that I bought it from put ...
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95 Integra Temperature dashboard gauge

A mothballed Integra was started after 12 months of hibernation with a new battery. Vehicle was allowed to idle 3 minutes before taking a short run to the gas station (4 miles). When returning, the ...
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3answers
1k views

Pontiac Grand Prix 2007

I noticed lately that on my dash engine heat goes close to hot but never really gets there. That usually happens when i am in idle. When i start driving it goes back to normal and only sometimes goes ...
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1answer
890 views

Blown head gasket? (Decent compression numbers but cooling system doesn't hold pressure, no external leak)

I have a Mazda MX-5 and it was overheated due to the water pump belt failure. I replaced the belt afterwards and the car drove fine. I brought the car to the shop and they told me it has head gasket ...
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1answer
28 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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4answers
3k views

2002 Dodge Ram 1500 overheating

I have a 2002 Dodge Ram 1500 two wheel drive with a 4.7 liter engine. It's been overheating so I replaced the whole cooling system: I replaced the condenser cooling fan because its not coming on ...
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2answers
4k views

Radiator has a leak and the upper hose is clogged, car does not overheat. White smoke from upper hose

My car is a 2003 Buick Century and it has been leaking for the past few months (puddles of coolant under the car). Now the car begins to have white smoke coming from the engine and it has a sweet ...
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4answers
18k views

Why does my 2006 Chevy Equinox have no heat when all repairs for the heat has been made?

I have: replaced the thermostat about 10 times, back flushed heater core and flushed cooling system out about 10 times, replaced water pump, intake gasket, blend door, mode door, actuators, HVAC ...
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2answers
46 views

Cooling system problem (Car gauge always at cold) 2006 Honda fit 1.3L IDSI

I have a 2006 Honda fit 1.3L IDSI and Im having a cooling system problem. Engine Coolant Temp gauge always at cold. can u guys help me narrow down the cause of this? I recorded some data with my ...
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2answers
1k views

Overheats only when running at low RPM

Car in question is a 2010 Mazda 3 2.5L. 193,000kms. My car's temperature starts to rise when idling or driving at low RPM. Before this problem started, the coolant temperature always stayed at 88C. ...
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2answers
1k views

Proper operating temp for a 1983 Mercedes 380SL?

My 1983 Mercedes 380SL seems to be running hotter than I like. It settles down at right at 100 C by the instrument panel temp gauge after running at highway speed for 10 minutes or so. When I first ...
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12answers
7k views

Do mobile air conditioners exist for cars?

Even if my home has no integrated air conditioner, I can add one 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 ...
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1answer
73 views

Indica petrol 2006,coolant leakege

I have bought a 2006 petrol Indica Xeta,and changed the normal radiator water with valvoline super koolextra. After 50km of driving, I kept the vehicle in my car porch. After 5 days When I opened the ...
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3answers
78 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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32 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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0answers
34 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
27 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
65 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
83 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
3k views

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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3answers
20k views

Consequences of adding Blue Devil headgasket sealer to a car with no obvious problem?

I was doing some general internet browsing and stumbled across Blue Devil head gasket sealer which advertises permanent fix to any head gasket leak. The reviews on the internet also seem to be quite ...
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1answer
53 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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3answers
8k views

Dodge Ram - no heat at idle but have heat when driving

I have a Dodge Ram 1500, I have changed the heater core, radiator, the water pump, and the thermostat. When I push on the gas it blows out hot air but when its at idle it blows out cold air.
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4answers
325 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
1k views

How to determine component causing overheating?

Car: 2008 Audi S5 4.2L Background: Fan has been working very hard for the last 3-4 months (albeit it was summer, but even on cooler nights it was on max), temperature on dash dial steady in the ...
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1answer
67 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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