Questions tagged [cooling]

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10
votes
3answers
8k views

50/50 Coolant Dilution after distilled water flush?

I have a new (to me) car that it appears hasn't had a coolant fluid change ever, now with 120k miles. It is an 04 Corolla. I am planning on flushing the system with distilled water a few times. But ...
9
votes
6answers
4k views

Using sunshine to cool down the car

Why can't the sunshine (that turns a car into an oven) be used to run the aircon? Or at the very least, a fan? For example - a long thin fan that fits into the top of the window - preventing it from ...
9
votes
3answers
56k views

Do you really need to cool down your turbo after hard driving? [duplicate]

Vehicle: 2012 Subaru Sti I have been driving turbocharged cars for a while now and I have blatantly accepted that before shutting down you must let your car idle for a few minutes after driving hard ...
6
votes
2answers
3k views

Was sent radiator for automatic rather than manual. Can I simply connect the two unneeded outlets with a piece of radiator hose?

Radiators for the automatic version of my car have a couple of extra coolant outlets at the bottom for cooling the auto transmission. I was sent the wrong radiator and I don't need these in my manual ...
6
votes
2answers
175 views

Thermostatic Cooling Fans

Most cars these days have a cooling fan that only runs when needed.The advantages in fuel economy ,warmup time ,pollution,HP are well documented elsewhere.The popular methods are the electric fan and ...
6
votes
1answer
1k views

2010 TDI Jetta Strange A/C Pressure Readings

I recently replaced the compressor and dryer at the suggestion of a nearby shop. I've charged the system and the high side reads a solid 100psi the low side cycles between 70 - 110. Cycle time is ...
5
votes
3answers
1k views

Why is antifreeze mixture not as stated?

To keep things short I poured 200ml of concentrated genuine ford super plus premium antifreeze (Ethylene glycol based) within a bowl. Then added 200ml of water to dilute the solution to a 50/50 ...
5
votes
1answer
602 views

what in the thermostat opens when it reaches a certain temperature?

what actually opens when it reaches the certain temperature, is it the spring or is it the copper, or does the heat of the engine make the spring softer allowing it to come up and let coolant start ...
5
votes
3answers
8k views

Problem with Temperature rising after 30 minutes of driving?

I have a Mitsubishi Galant 2003, 2.4L engine with 234k miles on it. When I drive it the temperature gauge gets up to exactly midway, until exactly 30 minutes. Then it goes up to about 2/3 or 3/4 of ...
5
votes
3answers
5k views

1992 Honda Accord overheating issues

Before I dive into a water pump replacement - how would I test it? I have replaced the thermostat, hoses and radiator - all of which needed it. Now the car will go to red (hot) intermittently, and ...
5
votes
1answer
1k views

AC Cooling stops at high speed

My car ac works very fine in normal conditions. But when I drive it for awhile longer, and often at high speed, it stops cooling. I can still hear the fan sound loud and clear but air flow decreases a ...
4
votes
3answers
1k views

Should I keep the engine running for a minute or two after reaching my destination to cool down?

My father bought a new car and in the owners manual it advises to keep the engine running for a little while after stopping, the car in question is a 2016 Skoda Rapid with no turbo on it. I know in ...
4
votes
1answer
245 views

Is it bad to immediately crank the air conditioning all the way up when you start your car on a really hot day?

There have been times in the summer when my car is in my driveway all day in 100-degree weather, and combined with the sun, it must be 140+ degrees in my car. Can it damage or shorten the life of my ...
4
votes
2answers
6k views

Is there any advantage to aftermarket hoods with heat extractors, or are the extractors purely aesthetic?

Many aftermarket hoods, especially for sports cars, make use of large cowls, ram air vents, and most commonly heat extractors on the sides of the hood. I'm a techie and we're always spending insane ...
4
votes
1answer
79 views

Is there such thing as flushing coolant to often?

If I were to go with a coolant flush every 15 to 20 thousand miles is this considered a little too excessive? It’s a ford fiesta mk 6 the service interval by the manufacturer is recommended at 100 ...
4
votes
2answers
1k views

No heat in car blowers

I have a Nissan Qashqai 1.5 dci. My car is not overheating and blowers are blowing cool. The lower radiator hose and the bottom of the radiator are cold. I changed the thermostat and drained the ...
4
votes
0answers
400 views

2005 Pontiac Grand Prix overheating

I have recently bought a 2005 Grand Prix V6 non supercharged. It overheats at idle and in park. I have had my head gasket and head resurfaced at Pepboys and replaced my radiator with a larger 1 inch ...
4
votes
0answers
194 views

1999 Ford F250 XLT Super Duty – Oil in coolant

My truck has the 6.8l V10 Triton engine in it. When I got it there was a lot of oil in the cooling system but no water in the oil. It ran hot once but didn't do it again. Would it be the head gasket ...
3
votes
1answer
927 views

How do I know where to place my air filter?

I am thinking of buying a performance air filter for my 2001 SEAT Ibiza (6K2). The reason I'm considering this is because my stock filter needs replacing and I figured I might as well do it right the ...
3
votes
1answer
2k views

Why wont my #1 fan run on my on 2003 Pontiac Grand Am?

I have an overheating problem and I've found that my #1 fan that should be coming on at or about 195 degrees isn't coming on. I've checked the fan motor, it's good, I've checked the fuse and relay and ...
3
votes
2answers
2k views

MK 1 citi sport temp gauge fault

I own a MK 1 Citi Golf Sport 1.6 Carb that has 523220 km. I recently flushed the cooling system and changed the coolant. After the flush the temperature showed above normal despite changing everything....
3
votes
2answers
341 views

Troubleshooting engine damage after radiator hose failure

My mechanic replaced my radiator hoses. 2 weeks later, one came loose and the engine overheated and died. It was put back on and 2 weeks after that, the hose began to leak. I brought it back and ...
3
votes
0answers
114 views

2000 pontiac montana overheating

2000 Pontiac Montana Van- intake manifold has been replaced along with radiator, water pump, radiator cap and thermostat. When driving van will go to the red line but has never overheated with steam ...
2
votes
3answers
2k views

How is oil in an engine cooled?

After reading some articles regarding 'running low on oil', I understood the logic that having more (appropriate amount) of oil is better than running low as oil has time to cool down before it has to ...
2
votes
1answer
83 views

98 Honda Accord 2.3L

I have a 98 Honda Accord. I replace the radiator and cooling fan, now they come on as soon the ignition is turned on and 30 seconds later the heat gauge goes to high.I am wondering if I have a ...
2
votes
2answers
2k views

Can I use an intercooler as a charge cooler radiator

I'm looking at creating an advanced charger cooler setup for my car, can I use an intercooler as a charge cooler radiator? Or do radiators need some special coating on the inside of them? It's a ...
2
votes
1answer
25 views

Coolant leaked out of vehicle

I have no coolant in my vehicle. It's getting cold tonight-20 degrees. Can I leave the vehicle parked, then just add coolant when the weather warms up again? The coolant all leaked out, I don't ...
2
votes
1answer
7k views

How to remove rust from the cooling system

Hi I have a 2000 Honda Civic. There seems to be a lot of rust in the coolant. I just got it back from the mechanic who repaired a failed water pump. Any suggestions on what to do to fix this? ...
2
votes
2answers
57 views

Upsizing a hot rod cooling fan from 7a to 20a

12v car power supply with 160a alternator and 30a relay, will this system support upsizing the cooling fan from 7a to 20a?
2
votes
2answers
147 views

1990 Honda Accord Overheating

First let me state I've been an Auto Tech since about 1967, so this is kicking my butt. I've replaced the water pump, radiator, lower hose, thermostat, fan sensor, coolant sender, engine temperature ...
2
votes
1answer
80 views

excessive water (i think, but its dark out) leak and burnt coolant smell

I work approx 30 minutes away from home. when i got home tonight, i noticed a hissing sound coming from under the hood and a thin smoke coming out of the front grill. the vehicle is a 2001 ford f-150 ...
2
votes
1answer
58 views

Engine temperature rising

Most recently I have noticed my temperature gauge rising and im hearing bubbling in the overflow jug. I opened the hood and took off the radiator cap and all the fluid was it drained from the radiator ...
2
votes
1answer
538 views

Cooling fan shuts off after getting up to temp

Working on an overheating issue on my 2008 Mustang GT. Car starts normally after sitting all night and fan starts up when I click on the AC. Let the car run (or drive it in traffic) and as soon as ...
2
votes
1answer
834 views

Where are the fan relays for the 2007 v8 Monte Carlo

I'm looking for the fan relays for a 2007 Monte Carlo V8. My fans are not turning on. So I need to check the relays to make sure that they are receiving power.
1
vote
7answers
58k views

Is it okay to add straight anti freeze to an engine?

I was reading online and found a few people saying you should never add concentrated anti-freeze to a cooling system. you should only dilute what you already have in there with water and only add anti-...
1
vote
3answers
53 views

Redundent radiator

A 2000 town car limo was build just in tolerance for the 4.6 engine capability. Even at brand new it would overheat if you push it to hard. It is older and less efficient and it over heat in general ...
1
vote
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 ...
1
vote
1answer
535 views

Does low alternator load create more heat?

For example, it seems switching from some high wattage headlights to much lower wattage LED's frees up more of the alternator's power capacity. But, does this mean the alternator (or other electrical ...
1
vote
2answers
139 views

Bubbling in the reservoir

So I have a 2004 chrysler sebring 2.7l. It is bubbling or boiling in the reservoir. I have replaced the thermostat, the rad, the reservoir itself... all brand new and it still does this. There is no ...
1
vote
1answer
2k views

Radiator cap pressure and how it impacts stress on cooling-system and engine?

OK, if radiator-cap pressure is say 20-pounds as opposed to 18-pounds, won't the overall impact on the engine and cooling-system be more heat/pressure stress??? Sure, the boiling-point will be raised ...
1
vote
2answers
3k views

99 Grand Am radiator fans not working

Any suggestions on how to fix the radiator fans on my 99 Grand Am. Both fans don't even kick on after I turn on the ac like they did before. I replace the coolant tank all hose just replace the ...
1
vote
1answer
48 views

200 magic number

2005 Pontiac Bonneville 3.8 SE. Temperature steady at 200 degrees constantly. Never goes higher even in stalled traffic. I have actually let the car idle for 1/2 hour and electric fan has NEVER came ...
1
vote
1answer
42 views

What is the chemical difference between various brands of coolant additives (SCAs) for the cooling system?

In the manual of my vehicle, CAT recommends using their SCA over others. Is this just marketing or do different brands create different SCAs that affect longevity/chemical interaction/etc?
1
vote
1answer
675 views

Cold A/C in front, but none in back

I've got a Ford e350 (1996, 5.8L). Our front vent A/C works well, but the back blows what seems to just be vent. Not heat, but about the same temp as outside. History: We just recharged the A/C (...
1
vote
3answers
846 views

No thermostat, but still running hot

Have a 2001 Mitsubishi eclipse. The thermostat was taken out but the car is still running hot. I've checked the coolant level and it's full. Don't know what else to do.
1
vote
1answer
147 views

Number of times you should refill and drain your cooling system to get pure water?

I understand before refilling your system after a coolant flush you should refill and drain the system several times with water. This is fine however last time I refilled and drained over three ...
1
vote
1answer
3k views

Cracks in coolant expansion bottle

Two years ago I had bad cracks in my coolant expansion bottle, so bad that coolant would leak though. I replaced the expansion bottle and after only two years there are already cracks showing. Not as ...
1
vote
1answer
601 views

Oil in the cooling system

I have a 2003 Chrysler GT, PT Cruiser with less then 60000 miles. It is a four cylinder 2.4L, that is turbo charged, and is automatic. I had a hole in the over flow tank and had it replaced with a new ...
1
vote
1answer
74 views

Do I need my system cooling fans running during the winter months?

I know I need it, but I’m going to get a new car in a couple of months, and I just really need something to get me to work and to school, which is only about 15 min drives. My car sounds the same, and ...
1
vote
0answers
99 views

Overheating 2008 Subaru Outback

I have a 2008 Subaru Outback it started overheating and we change the thermostat and it continued to overheat even after burping it so we changed the radiator and all of the hoses got a new radiator ...