For questions about device used in engine cooling.

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5
votes
3answers
844 views

Does a small amount of dried coolant warrant replacing block heater, radiator and hose Or can I use K-Seal?

My garage found a small amount of dried coolant on my radiator and block heater and tell me that I needed to replace my radiator, block heater, and hose urgently, as it could leak at any moment. I ...
2
votes
2answers
25k views

Using only coolant or mix of water for radiator?

Do I have to use only coolant for radiator or mix coolant with water, if so what percentage of coolant and water should be mixed?
2
votes
1answer
133 views

Does a water leaking make the engine heat faster?

I have a Range Rover classic 1993 which is heating very fast even if I just drive for 10 min, the heat is not rising too much but I used to drive this Range Rover before and especially in winter ...
5
votes
2answers
1k views

Changed radiator, now have misfiring?

I have a 1996 Nissan Altima. I had to change my radiator recently because it developed some cracks on the top of the tank and I would have to refill the tank every few days. When I changed the ...
2
votes
2answers
442 views

How to know if a radiator is getting sufficient airflow

I have recently purchased a dune buggy as displayed in the photo below. Note the position of the radiator located above the seats. What I am wanting to do is install some clear perspex in the window ...
2
votes
2answers
376 views

Plastic end-tank radiator

Why are modern radiators made from aluminium with plastic ends? What is the durability compared to 100% aliuminium radiators?
9
votes
4answers
108k views

Can I drive a car with only water and no coolant if it has a leak?

Recently, I was informed that a car I share ('02 Nissan Sentra) was close to overheating. I was told it gets close to the upper limit very quickly upon running the car. When I inspected the vehicle, I ...
2
votes
2answers
735 views

Why did GM change the pressure rating of their coolant tank cap for existing vehicles?

GM has changed the part number for the radiator surge tank cap on vehicles that came from the factory with Dex-Cool. The new cap is 18 PSI (RC87 - part number 25713160), the old one for many vehicles ...
3
votes
2answers
440 views

Should I try radweld on this pipe or just replace it? Mk3 VW Golf

I have a leaking pipe in the cooling system of my Mk Golf. It leaks about a litre in 5 miles. I'm not sure if it's worth trying Radweld with this rate of flow or if I should just try to find a ...
5
votes
3answers
8k views

Air trapped inside radiator after adding coolant

It has now happened twice to me that after adding coolant to the radiator, when I turn the car on the RPM's will bounce up and down and the engine is reving (between 1k and 1.5k RPM's). Normal idle is ...
3
votes
1answer
294 views

My truck is not accelerating when going to low gear from high gear

So I have a '94 Chevy truck with a bad radiator leak (which may be unrelated). Yesterday and today I pulled off of the highway and the street light on the exit was green meaning I didn't have to come ...
4
votes
2answers
1k views

01 sentra running hot

I have an 01 nissan sentra which had been running hot. If i start the car in the morning and turn temp control to hot and fan on and let the car warm up, i will have no heat and the car runs hot. Just ...
3
votes
1answer
358 views

1995 Chevy s-10 4 cylinder running hot but not overheating

I am having an issue with my s-10. It runs hot but is not overheating. It started when I replaced the temperature sending unit and thermostat. I put in an additional thermostat to make sure the first ...
5
votes
2answers
18k views

Accidentally poured engine oil into the coolant reservoir

My 1990 Mazda 626 leaks oil like a sieve, so I regularly top up the oil. In a moment of stupidity, I opened my radiator cap instead of my oil cap while topping up my engine oil, and poured about ...
3
votes
3answers
4k views

Is there a reliable way to repair a pin hole leak in a radiator

I have heard a few different ways to fix a pin hole leak in a radiator. I have heard put a small amount of black pepper in the radiator, or use jb weld to patch the hole, and not to use the stop leak ...
2
votes
1answer
424 views

Lower radiator hose heater. Is it worth it?

As winter and cold temperature are coming soon, I was looking at getting a block heater and I came across a thread talking about installing a lower radiator hose heater. Does anyone have one ...
1
vote
3answers
2k views

radiator grill fins bent

I have a over heating problem. I have replaced the water pump, thermostat, upper radiator hose and the coolant temperature sensor. They were all in need of replacement, but my car still over heats ...
1
vote
1answer
5k views

Bent radiator fins — how many is too many?

Hi I thought I fixed some previous overheating problems but I only helped them. My car was running fine when it was 95F or so over the weekend but now it's 110F(yes, hell, I know) outside and my cars ...
4
votes
4answers
20k views

My car has the wrong coolant in it. Now what?

Hello I realized today after beating my head about my car's overheating problems that I have the wrong coolant in it. About a year ago, my car ran dry. At the bottom of the expansion tank was an ...
2
votes
1answer
1k views

Radiator drain plug for Ford Falcon BA Mk2 Wagon

I'm trying to flush the coolant on a 2005 Ford Falcon (BA Mk2 wagon model, with the 6-cylinder engine), but am having difficulty locating the radiator drain plug. I'm having difficulty even getting ...
8
votes
4answers
70k views

Reasons for loss of radiator fluid

I've had to top up my car's radiator fluid twice in the last month after discovering that the expansion tank (plastic container where one usually tops up) had completely drained out (roughly a ...
7
votes
6answers
6k 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 ...
11
votes
6answers
37k views

How far can you drive with an empty radiator?

The radiator on my Peugeot 106 has started leaking very badly and need replacing. I don't have time to fix it at the moment, so I'm taking it to a garage. How far can I drive it without damaging the ...
9
votes
5answers
2k views

2005 Ford Taurus - Is it really harmful to use standard antifreeze?

My wife was speaking with a mechanic when she took the car in for a safety and emissions inspection this past week and the mechanic told her that we HAD to take our Ford Taurus to a Ford dealership or ...
5
votes
3answers
912 views

How to do minor repairs to a radiator?

I have a radiator in my truck that has a slow leak which looks like it is oozing a little bit in between some of the fins. What are some of the ways to repair a radiator without replacing it? At ...