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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Coolant tank drains too fast of Boxer 435

I have Peugeot Boxer van (435 onnicar) and its radiator coolant drains too fast(in one day, it's already empty). I.e. In the morning, if I fill up with water and at half of the day it's almost drain. ...
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5 votes
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772 views

I put Adblu in radiator coolant tank in Peugeot Boxer 435 Onnicar

My coolant tank was empty and there was a plastic cane in the cockpit/dashboard, so I thought, it was water and I put some in the coolant tank. I am pretty sure it was less than 500ml. Driver is using ...
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1 vote
2 answers
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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. ...
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Coolant loss on VW, no visible leaks, no combustion leak detected

My 2006 VW Passat 2.0T is losing coolant in the past few months. I have added 2qt distilled water for a 7.6qt system. Less than 1000 miles driven. No visible leaks. No combustion leak detected (...
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2 votes
3 answers
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2004 Honda Civic OverHeating (Lots of Details and Pics to Help Diagnose)

I have a 2004 Honda Civic thats new to me and just started overheating. I first noticed a month or two after I bought it...I was idling in park for 45min or so when I noticed steam coming from the ...
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2002 Ford Escape - What type of O-Ring can I use for the coolant bypass tube that plugs into the head?

his coolant bypass tube connects directly to both heads. https://www.oreillyauto.com/detail/c/murray-climate-control/murray-climate-control-coolant-flange/mry0/86161/v/a/5218/automotive-suv-2002-ford-...
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-2 votes
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Added coolant repair to my car

I added coolant repair to my car. how long do i have to wait to add coolant into the tank? I’ve waited 20 mins after i poured the coolant repair in and the engine has cooled.
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1 vote
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Dominar 400 2022 engine coolant level is little over max

I bought a new Dominar 400 2022. When I went for the first service, I observed that my coolant level was almost touching min. So I asked the service engineer to top that up. When he topped up, he put ...
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2 answers
100 views

Truck will not reach operating temperature

My 2005 GMC SIERRA 1500 runs at about 180/190 degrees, and won't heat up beyond that. The thermostat and coolant temp sensor have been replaced, and I've been trying to burp the system with hit and ...
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2 votes
1 answer
412 views

Accidentally mixed orange and green antifreeze

My car has a slow coolant leak that mechanic hasn't been able to identify that takes about a year before there's an issue. It was running low and it was Christmas eve so I couldn't get Dexcool (I ...
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2 votes
2 answers
46 views

Coolant leak visible from bottom two corners of radiator

My Mercedes 1998 ML350 is leaking coolant from beneath the radiator; at the bottom two corners of it. I am not a mechanic nor do I know much about cars but I did do some stuff on engines. A hose ...
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2 votes
1 answer
71 views

What will happen to a Nissan if it was refilled with antifreeze meant for an Audi?

My friend had to replace the radiator in her Nissan Rogue and bought "blue" antifreeze as specified by her mechanic. After the job was done and she'd been driving for a few days, she went ...
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4 votes
1 answer
636 views

What are these pipes next to the carburettors?

As you can see in the pictures below circled in red there are pipes that are right next to the carburetors on this Abarth Tipo 240 v12 engine and Ferrari Lampredi inline 4 dohc engines (on the Ferrari ...
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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, ...
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1994 gmc 350 not getting to operating temp and don’t have a heater

1994 gmc with the 350 was driving and all of a sudden my heater stopped working but my trucking wasent over heating. Since then I’ve changed the thermostat 3 times thinking I was buying bad ones, ...
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No power steering and coolant explosion

2008 Subaru WRX (Turbo) I was pulling in to my parking spot and lost power steering looked at gauges and coolant temp was hot then white smoke/vapour from under the hood. Turn car off, pop hood and ...
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Can I help a failing water pump by removing the rad cap?

I'm on a trip and my water pump is starting to leak. The rad and overflow are a sealed system. If I left the pressure cap off the overflow will that help the water pump - less pressure? The temp on my ...
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Coolant bubbling on 82 K1500 6.2 diesel

Vehicle is a 1982 GMC K1500 6.2 diesel. It's got a 1987 6.2 diesel engine in it swapped by some previous owner (there were many). The truck has sat for a while since I didn't really have time to work ...
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1 answer
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Coolant refill technique

EDIT:- Make: Honda Model: Civic Year: 2007 (European version but shares many of the same systems as US version) Gen: mk8 Fuel: petrol I've just drained my coolant so now I have air in the system ...
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1 answer
113 views

Thermostat located in lower radiator hose, not upper

All the diagrams and videos online show the thermostat located where the engine meets the upper radiator hose. This makes sense because coolant flows from the engine to the radiator via the upper ...
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Fan blade spinning very fast during acceleration

2008 Ford Ranger with the 3.0 Two months ago I replaced the fan clutch and the coolant temp sensor to address this issue. It did help a little, especially when the car was idling in the driveway, ...
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1 vote
1 answer
69 views

Overflow tank very active at end of drive

2012 Sonata Hybrid Car overheated. Shop said it had a blown head gasket. So I took the head off and had it machined flat. Put it back on with new gasket and new bolts etc. Car runs well. Temp gauge ...
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1 vote
1 answer
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Why my car Over consume coolant .no any visible leak

I have added almost 4 liters of coolant today in my car.but over heating,boiling coolant and indicating low oil pressure alarm on the dashbod.what should be a problem
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why is my 2006 Mazda MPV loosing coolant? but no leaks underneath

This minivan is constantly loosing coolant, but I don't see it going anywhere. Meaning I don't see any evidence of dripping or pooling underneath. Does it just evaporate? The rate of loss is, I may ...
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Manual rotation of water pump before starting the engine. Is it necessary?

Today, I came across this article while surfing through Gates website: https://www.gatestechzone.com/en/news/2017-06-water-pump-replacement It mentions some points about installing a new water pump. ...
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1 answer
67 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 ...
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2 answers
57 views

Bubbling (not boiling) coolant

I have changed my car's thermostat (a month ago), and after driving for 30 minutes, the coolant starts bubbling (it doesn't seem to be boiling) because the temperature is in the norm (95 degrees ...
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Adding a ground strap from radiator to chassis

Does adding a ground strap from radiator to chassis reduce coolant voltage to almost zero? I have seen most cars have between 0.1 to 0.2 Volt of coolant voltage. I want to test it by adding a strap to ...
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0 votes
1 answer
83 views

Driving 2 hours without thermostat

Is it harmful to drive 2 hours without thermostat? I want to remove my thermostat just for ease of changing my coolant. I rinse my cooling system with distilled water 4 times. I fill up the whole ...
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1 answer
79 views

If a diesel truck has been run dry of coolant and has then been refilled and then overheats and now has a blown head gasket when was the damage done

Only problem is with head gasket. No leaking hoses and truck was serviced two weeks prior.
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Engine took a long time to warm up after putting chemical coolant flush in coolant reservoir

I have a 2006 Kia Rio 1.6L. Yesterday I put in chemical flush in the coolant reservoir since I’m flushing the system out on the weekend. I drove it once yesterday and the temperature increased as ...
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1 answer
66 views

Consequences of coolant phase change in radiator

Im a Freshman at my Institute in India. In the application form for the Institutes Formula Student Team, I came across these 2 questions, which I'm stumped by. Ive searched for the answers but cannot ...
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1 vote
2 answers
68 views

Coolant flush - didn't take specified amount of coolant

I did a coolant flush today on my 07 VW Rabbit. The car is supposed to hold 10 quarts of coolant, however both when flushing with distilled water and especially when adding coolant, the vehicle took ...
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10 votes
1 answer
3k views

Why would a mechanic crank heater to maximum

This is a curiosity question. I recently had the timing belt, tensioner and water pump replaced on my Honda Odyssey. When I picked up the van it was really hot inside but I didn't think much of it. ...
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2 votes
1 answer
52 views

Confirmation of coolant valve on a Ford Focus

I'm prepping a radiator coolant change on a 2014 Ford Focus, and would like to confirm if the valve with a 1/2" diameter pipe shown in the picture is the one that needs to be turned to release ...
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1 vote
1 answer
93 views

2004 Chevy Tahoe burning oil & coolant, smoking, and turning oil to jelly

I have a 2004 Chevy Tahoe with about 180k miles. Its really taken care of with regular maintenance. Recently after driving 30min on the highway, the next time I turn it on white smoke comes out the ...
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3 votes
1 answer
60 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 ...
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3 votes
1 answer
56 views

Coolant flows straighr from rad to muffler?

Had my 2008 pathfinder towed last week it broke down and I thought it was a starting issue due to corroded post clamps, replaced those and it runs, but... now filling the rad the fluid runs straight ...
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16 votes
9 answers
8k 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. ...
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Record -0° temp in Arkansas and my '10 Jeep Grand Cherokee is overheating plus heater stopped working

I had a good amount of 50/50 AF but when the temp dropped to record low of -0° my heater gradually went out over several days. I added a little concentrated AF and next day it overheated. Should I ...
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1 vote
1 answer
47 views

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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2 votes
0 answers
53 views

Coolant level fluctuates too much

I have a problem with the coolant level from my car (Renault 1.5 dCI engine). It fluctuates too much. I left home with the coolant level at the minimum mark. After approximately 10 minutes I stopped ...
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1 vote
1 answer
69 views

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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1 answer
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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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1 vote
3 answers
462 views

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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1 vote
0 answers
400 views

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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0 votes
1 answer
828 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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1 vote
2 answers
320 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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1 vote
1 answer
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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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