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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Chevy Malibu 2009 coolant sensor

I have a problem with my malibu, I got a code on the obdii reader as though the coolant temperature reading is not correct, so in the car lcd on the instrument cluster I can see Coolant temperature : -...
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639 views

Timing chain cover gasket

I posted a few weeks ago about cooolant leaking from the timing chain cover of my 2002 Corolla: Corolla - Coolant leaking from timing chain cover I went ahead and started to do job: removing the ...
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387 views

'05 Peugeot 307: Oil in the Coolant

I have a 2005 Peugeot 307 hatchback. Back in May, the head gasket blew so I had it replaced. When the head gasket blew, oil was leaking out and the coolant became very gungy. This gunge was cleared ...
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Honda Civic 2002 Coolant sprinkles back from Rad cap

I am having issues with this car, so I am reaching out to masses out there who could share some of their wisdom to help me understand the actual issue with this car. It has 262K miles on it. Issue ...
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What is the safest approach to deciding what coolant to use when you have no spec?

On a modern automotive engine, if the system is flushed with water, is it safe to use regular non-OAT ethylene glycol coolant and then continue to replace it at the defined interval (2 years for ...
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488 views

Why is my car overheating in the winter?

I am a novice when it comes to cars but I am trying to learn. Here is what is going on. Car 97 Acura Cl I replaced the radiator in the summertime and forgot to put coolant back in the system. After ...
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1answer
197 views

Rebuilt engine: cranks but lots of white/grayish fumes

So today I cranked the engine I was rebuilding (Skoda Estelle/120 '72, RWD, rear mounted engine) and while it started, yes, but not without some struggling, I got a lot of white or light grayish fumes....
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38 views

can antifreeze concentrate or get stronger in a vehicle with out loss of fluid level?

My wife recently went to get the oil changed in our 2012 Subaru Outback, when she went to pick it up the clerk recommended a radiator flush and refill as the coolant level tested at -65 degree's. Is ...
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1answer
161 views

2000 Honda prelude radiator issue

I was driving my Honda prelude and all of a sudden it shut down and wouldn't start again. I pushed the vehicle to the side of the street and opened the hood. The radiator frame where the hose ...
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944 views

Renault/Dacia Logan 2014+ engine temperature indicator?

the Renault/Dacia Logan 2014 and above have indicators like this: As you can see, the dial at the right has the total mileage and the fuel indicator only. I'm wondering if there is an indicator for ...
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1answer
11k views

Flat / collapsed upper radiator hose!

I have changed my radiator cap couple of months ago with an original OEM one. The older one had a broken sealant which caused engine over heating. Now, i have no heating problems but after the engine ...
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1answer
19 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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31 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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3answers
46 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 ...
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1answer
1k 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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124 views

Using lots of coolant, suspect head gasket

1998 Subaru Forrester, 4 cyl. I don't remember the exact specs of the engine. It's using what seems to be a lot of coolant -- probably 2 qts in a 30 day time span. There's no leak (I've left ...
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581 views

The gas pedal stops responding after a problem with car heat

So the other day I noticed the car was getting hot and I knew it the coolant needed to be refilled. But the coolant cap was stuck so I thought I would just finish my errands and then take it to the ...
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1k views

When doing an “Engine Coolant” and “Inverter Coolant” change. Do you use the same coolant type for both?

Well I got my 2011 Toyota Prius oil changed and the dealer wants me to pay $500+ to get both the Inverter and Engine coolant changed. However I feel I'm up to the task for a fraction of the price. ...
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88 views

What are some effects of higher than usual cooling system pressure?

This is a follow on to this question where I asked how A/C could be causing coolant loss. The answer was that using the A/C can cause higher than usual cooling system pressure, which could result in ...
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363 views

Sudden high coolant temperature

After installing a new coolant regulator and burping a system sudden high temperature occures. Following picture show 95 degree at 92 degree of oil temperature but coolant temperature can reach even ...
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865 views

I have a 2008 Mazda 3, and it's not blowing cold air

I have a 2008 Mazda 3, and during the winter, we had a few warm, wet days, and I tried using the AC, and it wasn't blowing cold. So now that spring has sprung, I'm looking to get this fixed up. So ...
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38 views

A/C working but engine overheating

I have a 2004 Chevy 2500 6.0 and the AC compressor belt was not on when I bought the truck, so I put one on today and it worked great until I was parking, the dash said "Engine Coolant Hot" and ...
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463 views

Coolant and Power Steering Leak

1997 Jeep Cherokee here. I drove 120 miles and when I arrived at my destination the power steering and coolant were empty. The wheel was very hard to turn. I refilled the coolant and power steering,...
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80 views

Why is there no pressure in my 06 Chevy Impala…?

Boy, what a day I had. Roads were real slippery today in Texas and I skidded and lost control. Next thing you know, I'm in a ditch full of grass, dirt and rocks. I'm still amazed at how little damage ...
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94 views

2006 Mercedes E350 4matic , v6 engine

Drove kids to school , stop to get ha and made it home then was about to leave back out and the car started to drive sluggish as if it didn't want to do . I proceeded to pull over at a gas station and ...
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24 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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60 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 ...
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58 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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1answer
66 views

Coolant Leak/Bubbling/Whistling

New here! Will say right off the bat car knowledge isn't my strongest suit but i've been trying to tackle my latest problem. I've got a 2004 Ford Fusion. About a week ago when parking up i noticed a ...
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28 views

White Smoke and Engine Coolant Light

I’ve just been in traffic for around an hour and my engine coolant light came on. As I couldn’t pull over anywhere there’s no way I could turn off my engine for a good amount of time(nightmare). The ...
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1answer
71 views

I've got oil in the coolant, but no coolant in the oil - Renault Twingo RS

I just checked the fluids of my Twingo RS and made de discovery that there is oil in the coolant. So naturally i thought headgasket. But there is no coolant in the oil, no smoke out of the exhaust, no ...
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64 views

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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18 views

Measuring coolant flow in a radiator

My question goes like this: suppose that I suspect that there is a clog in my cooling system that lets water through, but not enough to sufficiently cool the car. It seems to me like the best way ...
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1answer
448 views

Which type of coolant is most suited for a Volvo XC90?

I have a 2006 Volvo XC90 that is low on coolant, and I want to change it. Since the coolant is low anyway, I will flush it, but I'm wondering what type of coolant to get. The manual, of course, ...
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Jeep Patriot 2009 Model smoke from under hood when in traffic **PLEASE HELP -ADVICE***

I brought this jeep form a dealership about 6 months ago. When we got it there was nothing wrong it? Took it in for its first service and they advised everything is fine and replaced a few light bulbs....
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245 views

Oil on top layer of coolant Reservoir

So recently when I got an oil change, they checked my other fluids and notified me that there is oil in my coolant... again. Last year, I noticed oil in the coolant and took it to a mechanic, they ...
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1answer
206 views

02 Honda civic LX 1.7-1.8 not sure. oil is leaking into coolant/radiator

so my wifes car had ran into some issues about 4 days ago when her car quit on her while driving from our sons school. she said that the oil light had came on moments before the car gave out and shut ...
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1answer
305 views

Can I use 3/4“ or 5/8” heater hose instead of 18 mm?

I have a '94 Honda VFR and two of the coolant hoses are 18 mm ID. 18 mm is a very unusual ID, and it would be easier to for me to go to the auto parts store and get a size they have in stock, which ...
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37 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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Exhaust in the Coolant 2000 Honda Civic EX

I know the 'go to' answer for this is the head gasket. But: the mechanic just did an engine overhaul and same problem persists. Allow me to explain. In November 2018 mechanic did work and replaced ...
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70 views

2006 chevy equinox overheating

My 2006 chevy equinox was overheating, temp gauge fluctuated up and down, and blower was not working at all. Also fans would come on and stay on for about 5 minutes after ignition was turned off. I ...
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503 views

Why would a coolant reservoir be full to the top when the engine is cold?

I’ve got a 2004 Honda Civic DX that has been acting up lately. It started with the inside of the car started blowing cold air when driving at low speeds or in park, and I thought it was maybe the ...
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295 views

Cyclinder 2 misfire error code - 11 Dodge Journey 3.6L V6

2011 Dodge Journey Mainstreet 2wd 3.6L V6 100k miles Check Engine Light on, first read Low Voltage replaced Battery Check Engine Light came back on, 2nd read Cylinder 2 misfire, & Thermostat ...
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Just had engine rebuilt, since that i had to replace fuel pump, now heater is blowing and no hot air. Could this be due to the rebuild done?

i just had an engine rebuild and since have had several minor but potentially expensive issues. Can a heater be affected by an engine rebuild? I picked it up 3 weeks ago and was informed that if my ...
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87 views

2003 Honda Overheating issue

Okay...I have read all other posts and while some are exactly what I am experiencing it is slightly different. My car will overheat after 30 plus minutes on the freeway. I can turn the heater on and ...
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No heat in my car

My front windshield would fog up from time to time whenever I left the car which says that there's water causing moisture somewhere, I also had to put quite a bit of coolant in with in a few months ...
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55 views

Coolant Level Drop

I have a 2013 VW CC 2.0 TSI. I have noticed a slight and continuous drop in the Coolant Level within the expansion tank, unfortunately no trace is found on the floor. I happened to go underneath the ...
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2answers
423 views

2004 Chrysler Sebring Coolant Overflow

So my dad and I replaced the thermostat, outlet housing, and radiator within the past month (all went bad at once) So ever since replacing the system, we have been noticing that as we put coolant in ...
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791 views

block test positive but leak down doesn't find any issue

My Jeep has been losing coolant before and after replacing a leaky radiator. block test proved positive for combustion gases but the dealer doesn't find an issue with leak down test. there is not ...
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Coolant fluid being consumed up fast (1.5 liters in just two to three days)

My friend owns a VW Golf Mk4 1.6 SR year 1998. Recently he is having issues with the coolant fluid being consumed up really fast, approximately 1.5 liters in just two to three days. The first thing ...