Energy that transfers itself between a system and its surroundings. Heat is measured in joules.
Questions tagged [heat]
82 questions
18
votes
4 answers
What can I do to combat wire embrittlement?
I live in a very hot climate where temperatures regularly touch 45 deg C and the heat in the engine bay area means that under-hood wires, especially the thinner ones, endure high levels of thermal fatigue.
As a result, when working on older cars…
Zaid
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18
votes
6 answers
2000 VW Golf heater won't blow hot air
My 2000 2.0L Golf GLS won't blow hot air at operating temperature, the air is only lukewarm at best. This started a few months ago inexplicably. The car isn't overheating or underheating, it reaches operating temperature in the same amount of time…
Mr. Buster
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11
votes
2 answers
Does Ford's heated windscreen/windshield normally drain excessive current?
When getting my battery tested for an issue in this post, the mechanic noted that when my Ford's "quickclear" windscreen heating element was activated and the engine running, the voltage coming from the battery dips, whereas this doesn't happen with…
SilverlightFox
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9
votes
3 answers
Engine never warms up (actually: it cools down) at highway speeds
I have a 1997 Caravan (base model) and normally on my drive to work and my highway drives in rush-hour, the engine warms up just fine.
I took a road trip for work, about an hour and fifteen minutes of driving at basically 60-80mph the whole way. The…
Robbie
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8
votes
3 answers
Is there a type of car heater that starts immediately?
I've noticed that most cars have a heater that takes a few minutes to start after the car has been started, presumably because it derives its heat from the engine which hasn't heater up yet.
Are there heaters which don't use engine heat and thus…
Timbo
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8
votes
3 answers
Why am I smelling exhaust inside the cabin of my car?
When I drive my car the first few miles, I smell exhaust inside the car with the windows rolled up. It happens when I have either the AC or the heat/air on...
What's going on?
studiohack
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7
votes
7 answers
Replaced brake pads - one pad was full, the other was gone. Brakes now very hot after driving
The content is pretty much contained in the title. When I went to replace the brake pads, one pad was completely gone and the other was almost like new.
Now that I have replaced the pads, the wheel heats up quickly when driving even short distances.…
ItsJason
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7
votes
5 answers
Why does my 2006 Chevy Equinox have no heat when all repairs for the heat has been made?
I have:
replaced the thermostat about 10 times,
back flushed heater core and flushed cooling system out about 10 times,
replaced water pump,
intake gasket,
blend door,
mode door,
actuators,
HVAC control head,
blower resistor,
blower resistor…
wendy
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6
votes
2 answers
Help with heat issue with pontiac vibe (toyota matrix)
I have a 2006 Pontiac Vibe. Same engine as the Toyota Matrix. The heat blows fine but isn't warm enough.
I checked the antifreeze and the level is fine and there are no leaks.
The hose into the heater core is hot. The out hose is fairly warm. …
hortstu
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6
votes
4 answers
If my brakes overheat, do they need to be replaced?
Let's say I take my car track racing, and during it, the hard braking leads my brakes to massively losing stopping power due to them overheating (a likely outcome on stock brakes). Or likewise, I take my car down a gigantic hill and don't use engine…
andrewb
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6
votes
3 answers
Hot Rim Looking for Suggestions
I've been coming home from work (~25 mins, highway) with a on/off hot rim on the rear drivers side. Car is a 2009 VW Rabbit. It has that signature burnt smell and the rim is very hot to the touch.
Related issues/maintenance:
Bad bearing, replaced 2…
GravyBagel
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6
votes
3 answers
What concerns should I have for having a car in a hot, dry climate?
I live in a hot, dry climate (Arizona, if anyone cares). It is very common in the summer for it to get over 110 F (That's 43 C for those of you metric buffs), usually having tens of days a year over that, as well as many more days over 100 F (38C).…
PearsonArtPhoto
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6
votes
2 answers
Is PTFE (Teflon) tape safe to use on brake bleeder valves?
There is a thread on the chemical composition of PTFE tape (Teflon tape) here: Master cylinder leak
but my question is, will PTFE tape stand up to the heat generated by front disc brakes? Or, will the heat generated melt it and just make a messy…
cdunn
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6
votes
1 answer
Motionless car with tire spinning on ice causes burning rubber smell?
I live in New England, where "Winter Wonderland" often involves large amounts of ice on the road. A number of times I've had to help someone get their car out of a parking spot where their drive wheels were on ice. Often the driver would (foolishly)…
Daniel Griscom
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6
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1 answer
Is pre-heating a modern engine worth it?
I have a 2011 Toyota Yaris and live in climate where -5C temperatures are common and -20C are not unheard of. The car has an electric engine pre-heater installed. I don't know exactly what is the type of the electric pre-heater but I don't believe…
juhist
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