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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Coolant, filling while draining

2020 F150 3.5L Ecoboost. Can I fill the coolant reservoir while draining coolant? The bottom of the radiator has a drain valve and I'm wondering why I can't set up the new coolant to flow into the ...
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Replace thermostat or use head gasket sealer first?

1997 Pontiac Sunfire 2.4L I have a cooling system puzzle to solve. My cars temperature gauge isn't showing it is overheating but it is running hot. If I open the hood after trips longer than about 10 ...
arock's user avatar
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1983 Silverado Thermostat Housing Device?

I am working on installing a Holley Sniper EFI system and Classic Instruments gauge cluster at the same time on my 1983 Chevrolet Silverado K20 (with the 350/5.7L V8), and as such I am working out ...
Goulash's user avatar
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Car is running hotter after new radiator install (thermo fan coming on later)

I noticed there was a small crack in the radiator of my 93 VW Golf/Rabbit Cabriolet. So I ordered a new one and installed it. However, the car seems to now run hotter - or, at least, the thermo-fan ...
MeltingDog's user avatar
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2 answers
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Motorcycle (MT-07) coolant temperature reducing to 60ºC when driving on highway

On the last couple of days I have started noticing that whenever I ride at highway speeds (around 100 kph) the coolant temperature reduces to around 60ºC. If I ride slower it goes back to normal ...
joaoa's user avatar
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2 votes
3 answers
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Loud whirring from AC compressor fans

I've seen a wide range of posts related to this topic, which makes it really difficult to narrow down relevant information that is applicable to my case. I'm hoping to get a more definitive answer by ...
Arctiic's user avatar
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Toyota Avensis 2006 1.8 petrol engine cooling fluid disappears quickly when fan turns on

I have issue with engine coolant rapid level drop in my Toyota Avensis 1.8 vvt-i petrol engine. I did some inspection and noticed these things: When engine coolant temperature is still low, some ...
Andyally's user avatar
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Water is running out the front of my car were the radiator is can that be a hose ? 2006 vw beetle

When i put the fluid in it just ran right out
Natasha Taylor's user avatar
1 vote
1 answer
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Mechanical checklist before roadtrip

I'm planing to make a 4 day long road trip throughout Europe beginning in Scandinavia all the way down to Spain in the middle of summer and need some car advice. I've driven around with a small ...
Aden's user avatar
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3 votes
1 answer
287 views

Coolant Reservoir keeps breaking Skoda Rapid

My car is Skoda Rapid 1.6 litre petrol engine, 2013 model. It has ran about 140000 Kilometres. Recently Smoke started coming out of my coolant reservoir and it was leaking not from the cap but from ...
mSatyam's user avatar
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2014 Chevy Cruze 1.4l turbo

coolant boiling out overflow after replacing water outlet, and thermostat. Have no leaks even did a pressure test and used the spill free funnel to burp the system. Radiator fans will not come on and ...
Aj Alturo's user avatar
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1 answer
59 views

Radiator cap, / coolant flange and battery drainage issues

I wanted to enquire regarding some work that my mechanic carried out recently. All issues appear to be resolved now but I need to assess what happened at each stage. Apologies in advance for the long ...
Christianp's user avatar
2 votes
2 answers
2k views

What are the advantages/disadvantages of more rows in a radiator core?

When purchasing a radiator, one spec that is provided is the number of rows in the core. I have a few closely related questions regarding these rows that are perhaps best to combine into this single ...
End Anti-Semitic Hate's user avatar
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28 views

BMW engine cooling issue

So I have 316i E92 (N43), it was super fine with a minor hose leaking issue but that create more issues later and ended up replacing the radiator, water pump, and thermostat. recently when I drive ...
Amir Saadallah's user avatar
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Chevy cavalier 1999 hot rod hot wired radiator fan

Long story short I have a chevy cavalier with a hot wired radiator fan and I noticed my car stays cooler in the winter.will my car be fine or a should I install a aftermarket thermostat for the custom ...
William Phillips's user avatar
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1 answer
685 views

What happens if I mix green and orange coolant in a 2008 Chevy cobalt?

It’s a 2008 Chevy cobalt ss. I recently bought the car from a friend, and it sat for awhile before I bought it. I’m now trying to update all its needs, and I wasn’t sure what coolant was in it to ...
Harley Othersen's user avatar
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0 answers
229 views

Lexus ES330 - cooling fans not coming on, there is a disconnected cable but I can't determine where it goes

The car is overheating and I've found that the fans do not turn on. After checking fuses/relays I found the plug in the attached picture was not connected. However, I can't figure out where the male ...
Chris Rockwell's user avatar
1 vote
2 answers
155 views

Truck is overheating only while idling

My Problem 2011 Chevrolet Truck Silverado 1500 WT 2WD 4.3L FI OHV 6cyl is overheating while idling. It takes about 2-3 mins, so drive thrus and multiple red lights back to back are the main culprits. ...
Daniel's user avatar
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1 answer
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Chev Spark 1.2 using water , no leaks evident. Car runs fine and driving in 30° c heat.hecked all over. Car runs fine

Cooling system using liquid daily. No leaks evident n car runs fine.
Stones Steenkamp's user avatar
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2 answers
398 views

2003 Subaru Outback coolant overflowing

I have a 2003 Subaru Outback Put new radiator, new hoses, new housing, new tstat, new belts, new Reservoir and hose and flushed it and it still sprays coolant all over the engine from the Reservoir. ...
Angela Paige's user avatar
2 votes
1 answer
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Opel Astra hatchback is taking too much water and the water bottle is boiling in a short time drive or I should add water while its runing

My car its Opel Astra hatchback. It is taking too much water and the water bottle is boiling after a short distance. What I'm suppose to do?
Seh Garlic's user avatar
2 votes
0 answers
20 views

Replace radiator

In changing a radiator in a 2005 GMC Canyon with a 3.5, 2 wheel drive. Can I get the radiator out without opening any lines on the AC unit. Can I get the AC condenser off the radiator without opening ...
Jeff's user avatar
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5 votes
2 answers
2k views

What is this connector piece called coming from radiator?

Hello I have a 1992 F150 5.0L XLT. I noticed a slight coolant leak coming from this hose/connector to the radiator. What is this type of connector piece called that is circled? The end of the coolant ...
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How to distinguish the engine cooling flow and turbocharger air flow to/from radiator/intercooler?

I can't distinguish between the flow of engine cooling (coolant) with the flow of turbocharger air to/from the radiator (intercooler?). I have no foundational knowledge of automotive/automobile, ...
Plain_Dude_Sleeping_Alone's user avatar
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1 answer
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Opel Astra H - lowering original temperature the fan kicks in

I have got Astra H, Z16XEP engine. The engine operates in very high temperatures originally - 105-113°C. I want to lower a bit temperature the radiator fan kicks in: currently 113°. How that could be ...
JRr's user avatar
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'04 Ford Escape A/C is blowing ice cold air while driving but not idling

I own a 2004 Ford Escape V6 2wd, that has good R-134 refrigerate levels, blows ice cold air while driving or when A/C has been turned on while idling (ex. Like sitting in a parking lot) but once it's ...
Chase's user avatar
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0 votes
1 answer
533 views

What could cause bubbling/boiling in my surge tank?

I drive a chevy cruiz, and my coolant is bubbling/boiling like. There is no leaks, nor overflows, my coolant doesn't drain, and my vehicle doesn't overheat either. According to my temp gauge. Heck, my ...
sjc678's user avatar
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3 votes
1 answer
111 views

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 ...
Jawad Haq's user avatar
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0 answers
102 views

2008 toyota corolla overheating and heater not working

My corolla temp will gradually go up while driving and then come back down on its own while driving. The heater is not working. Blowing cold air. We have replaced the water pump, thermostat, and ...
Connie Bakken's user avatar
16 votes
9 answers
12k views

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. ...
kmiklas's user avatar
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1 answer
142 views

Assuming all coolant is drained (radiator and engine block), how does the system prime?

I've got a car with a radiator punctured near the bottom. There is no coolant in the radiator or in the expansion tank - that much I can see. I assume coolant is gone from the engine block as well (by ...
Dimitry's user avatar
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1 answer
37 views

Fans are running at all time [closed]

The fuse and relays are all OK, but both fans are just running with a key that has not even been started. You can only stop if the relays are removed or locked. Please help me find a solution.
U Gay Ngai's user avatar
1 vote
1 answer
72 views

Did I break my radiator fan?

This morning I turned on my 2013 Kia Rio without realising snow had gotten into my engine bay and my radiator fan got stuck with it. After I noticed a burnt plastic smell I inmediately turned off the ...
kartzs96's user avatar
1 vote
0 answers
623 views

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 ...
Ishmael's user avatar
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1 vote
1 answer
172 views

How does a water coolant work as a car coolant using newton’s law of cooling?(high schools student needs help)

I am a high school student that is really interested in car engines and how they work. I am in the process of writing my school report, and I am thinking of doing it on car coolant. Using newton’s law ...
General MO7's user avatar
1 vote
2 answers
44 views

ECT registering low at steady state. (low enough to set a code) No explanation

A little back story, this is a 2015 Jeep Wrangler. Since 2017 I've kept an eye on coolant levels because sometimes I can smell burning coolant when I'm in front of the vehicle (not in the vehicle). ...
mreff555's user avatar
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0 votes
1 answer
66 views

A/c gauge temp doing weird. Sky coupe gt 350

I have a gt350 coupe and I know when I am parked with the a/c on it will overheat in an hour, so I need to turn a/c off. But this time while driving the temperature gauge started going down, not ...
Evaaa's user avatar
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0 votes
1 answer
86 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 ...
SAG's user avatar
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0 votes
2 answers
75 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?
Jaydel Gluckie's user avatar
1 vote
1 answer
529 views

2006 Toyota Camry radiator issue

By no means am I a vehicle mechanic, but I've learned a lot from dealing with my old '06 Camry. Correct me if I'm wrong, but this appears to be the valve of the radiator that is not fully sealed, ...
aj0320's user avatar
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1 vote
1 answer
511 views

What is this part - air intake for Skoda Octavia

The piece in the centre is missing a cap/top of sorts. This is a Skoda Octavia (with a VW Polo engine), front right engine room. Any idea what this part is called? Checking the manual yielded no ...
Peter Meisrimel's user avatar
1 vote
0 answers
234 views

Is it damaging to a hybrid's gasoline engine to let it rev high before it warms up?

Generally, it is not a good idea to let an engine reach high RPMs when it is cold. The potential issues with a cold engine under full throttle are well documented. I have a Fusion Energi and the car ...
Poisson Fish's user avatar
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1 answer
334 views

Coolant Leaks while Engine is Running on 2003 Hummer H2

So this vehicle is leaking coolant. And I couldn't see where the leak was coming from when looking over the hood or under the car, but it looked like it came from the water pump. I got the water pump ...
Wolf Zwiener's user avatar
1 vote
1 answer
90 views

Is it right to presume that the top hose to heater matrix is always the hot hose?

Is it right to presume that the top hose to the heater matrix always comes fom the engine goes to the heater matrix and then exits, cold, to the lower radiator hose? I have an o series engine ...
Michael Sherpa's user avatar
2 votes
3 answers
118 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 ...
sc00t's user avatar
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-1 votes
1 answer
53 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 ...
Bubba's user avatar
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2 votes
2 answers
130 views

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 ...
sawreals's user avatar
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1 vote
1 answer
70 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 ...
Bubba's user avatar
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1 vote
0 answers
16 views

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 ...
Heather Ford's user avatar
5 votes
1 answer
26k 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 ...
Stupid Car-owner's user avatar

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