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19 votes

What can I do to combat wire embrittlement?

Heat and thermal stress, even at engine bay temperatures, is not generally the cause of copper wire failure. There is "hydrogen embrittlement" for copper but that only really comes into play at 400C+ ...
Jason C's user avatar
  • 4,890
16 votes

Why does my 2006 Chevy Equinox have no heat when all repairs for the heat has been made?

It sounds like the approach to solving your problem so far hasn't been very systematic or "evidence based" – at least the list of parts replaces suggests that the people working on it have been using ...
dlu's user avatar
  • 14.5k
10 votes

What can I do to combat wire embrittlement?

When you say "embrittlement", are you talking about this? This is a common issue with PVC used as insulation: PVC is brittle by nature an needs plasticizers to be added to it when making cable ...
Dmitry Grigoryev's user avatar
8 votes
Accepted

Brake fluid heat

Short answer: It gets REALLY hot - like, way over 100C (decimal). And, as @SolarMike's answer states, the water that the fluid absorbs from the atmosphere likes to vaporize under those conditions. ...
3Dave's user avatar
  • 3,149
8 votes

Hot Rim Looking for Suggestions

Sounds like your pads sticking to me. The pad should slide in smoothly ideally they should be so annoyingly smooth so that they fall out if your are not careful. I have had stuck pin and stuck piston ...
Chris's user avatar
  • 905
7 votes
Accepted

What can I do to combat wire embrittlement?

The very short answer is that heat isn't a significant problem for the wire. Heat is a problem for the insulation. So if you have wires failing I think there is something else going on. The ...
dlu's user avatar
  • 14.5k
6 votes

Hot Rim Looking for Suggestions

Likely a sticking caliper, if you're ok doing your own maintenance and comfortable with brakes.. Firstly just check your brake fluid level is ok and not too low (NO need to top it up!) we just don't ...
Orb's user avatar
  • 5,067
5 votes
Accepted

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

I live in a very hot climate. There is no issue in turning on a properly-functioning A/C to its maximum setting at startup. Turning the A/C on activates the refrigeration cycle, which at startup will ...
Zaid's user avatar
  • 39.2k
5 votes

Why does my 2006 Chevy Equinox have no heat when all repairs for the heat has been made?

Any chance the coolant wasn't filled completely and burped? The heater core is the last thing in the system getting coolant as it sits the highest. Also make sure there isn't any air trapped in the ...
tlhIngan's user avatar
  • 12.2k
4 votes

Brakes Smoking After Driving

Brake dust on the rims is normal, although not usually after a short trip. It sounds like you probably have a stuck caliper. Did you replace the pads and rotors yourself? If so, did you lubricate the ...
TMN's user avatar
  • 2,311
4 votes

Thermocouple vs Thermostat

A thermocouple merely generates voltage according to the temperature, while an automotive thermostat is basically an autonomous temperature sensitive coolant valve. You can't replace a thermostat with ...
I have no idea what I'm doing's user avatar
4 votes
Accepted

How long to let a NA car cool down after hard driving?

There is no need to continue to run a naturally aspirated car after hard driving. Just shut it off an let it cool down. It is suggested you do this with turbocharged vehicles to give the turbo a ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes

Brake fluid heat

If there is a small amount of water in the brake fluid in the caliper and the brakes are used severely for an extended period the heating can cause the water to change to vapour. The issue is that ...
Solar Mike's user avatar
  • 34.6k
4 votes

Hot Rim Looking for Suggestions

As well as the items mentioned in @Orb and @Chris answers, it's also worth checking the flexi hose to the brake for any signs of swelling - sometimes the rubber can perish and swell, causing the hose ...
Nick C's user avatar
  • 28.8k
3 votes

Rear right drum brake is heating more than rear left drum brake

I'm assuming all the mechanical parts are good, like the return springs and things (a bad return spring could let a shoe drag & heat up) since the mechanics already looked it over. I wouldn't ...
Xen2050's user avatar
  • 698
3 votes

How long to let a NA car cool down after hard driving?

On track, it is typical to take a cool down lap to allow the brakes and drive components to cool down. On the road, I doubt you can get things hot enough to warrant driving a few extra minutes of calm ...
DizzyFool's user avatar
  • 1,571
3 votes
Accepted

Is hot desert weather the source of my recurring car problem?

My immediate idea was that P0506 means there is a vacuum leak somewhere. I googled for P0506, and the first page I found also mentions vacuum leak as the first possible cause of failure: https://www....
juhist's user avatar
  • 14.6k
3 votes

Is PTFE (Teflon) tape safe to use on brake bleeder valves?

Two points; Teflon tape is not a sealant. It lubricates the threads, so that you can insert the threaded part deeper, and as a side-effect it fills small gaps - but it was never designed as a sealant....
PeteCon's user avatar
  • 8,712
3 votes

Under what conditions would you consider driving without a fuel tank heat shield?

The rationality of this is, if the manufactures spent the money to install it, it most likely serves a very important function. The function may not be obvious to us at first, but many times it ...
Jupiter's user avatar
  • 3,320
3 votes
Accepted

Can frequent use of the rear glass heating wires lead to issues?

I don't think there's any real answer here. You can expect them to run until they don't. Usually they do not burn out, even if run continuously. That's mainly because they don't really get too hot. ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes
Accepted

Is PTFE (Teflon) tape safe to use on brake bleeder valves?

TBH I've never seen teflon tape on brake bleeder screws or any brake line fittings. It seems kind of stupid to try especially in a professional environment where you're open to litigation and ...
Ben's user avatar
  • 10.7k
2 votes
Accepted

1991 Chevrolet Astro - Vents, AC, Heat Not Working

Usually when the blower resistor goes bad (and they pop like popcorn on certain eras of GM products) they still have the highest "#4" blower setting. There are no "parts" to speak of on your blower ...
SteveRacer's user avatar
  • 12.4k
2 votes
Accepted

Can a water pump slowly fail?

When you replaced the thermostat, did you use a Subaru Thermostat? That's essential; the replacements available at car spares stores are NOT the same, and are often the cause of cooling system ...
PeteCon's user avatar
  • 8,712
2 votes

I have heat 20% of the time

Cooling system problems suck to diagnose because you can't see inside. No heat can be caused by three things no heat, no flow, other. The no heat part is easy. If the engine is not hot then you ...
vini_i's user avatar
  • 16k
2 votes
Accepted

Is this plug fouled due to being too cold?

tl dr: I don't think it's because the plug is too cold. Now that I can see the image, these look like ash deposits. According to this website, ash deposits are: Caused by the use of leaded fuel, ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
2 votes

Heat from rear passenger wheel

Dragging brakes are the #1 cause of Hot Wheels (Apologies to Mattel).
MetalsGeek's user avatar
2 votes

Burning Smell from a/c vents and heat gauge drop at highway speeds

You should check the coolant temperature sensor and its wiring. If the heat gauge drops, it looks like there's a fault there. As for the burnt smell it may be a consequence of it (fan not actuated, ...
uiguig's user avatar
  • 21
2 votes

Burning Smell from a/c vents and heat gauge drop at highway speeds

You have a clogged radiator. The fact that you've closed three leaks in the core is indicative of a bad radiator. A stuck, open thermostat would not produce this scenario because the thermostat is ...
Carguy's user avatar
  • 1,967
2 votes

my driver side front rim was steaming hot after driving 130km/h through the mountains and severe braking for a couple hours

The temperatures between the two sides should be similar. If one side is significantly hotter than the other (that seems to be what you're saying) then there is definitely a problem with one side or ...
jwh20's user avatar
  • 12.1k
2 votes
Accepted

Under what conditions would you consider driving without a fuel tank heat shield?

Immagine: A protective measure that separates a very hot surface from a liquid tank, often in precarious state. The liquid tank contains, at average, 60 liters of a highly inflammable liquid. The hot ...
Martin's user avatar
  • 8,458

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