Question, what is this small spring for?

Been hearing a squeak on the front drivers side sometimes and everything looks fine, but then I noticed that the driver side has this random spring to nowhere that the passengers side does not have. What is this?

 

That is not a spring, it is a brake line. It is coiled to reduce metal fatigue from the twisting and vibration the body does from the frame.

 

A Slinkey

 

op might want to change his profile name

 

Fake secret transmitter antenna that tells Toyota how many times you fill-up the tank at no-name gas stations. (The real one is mounted above the spare tire.)

 

it is the spring that follows a dark winter.

but in all seriousness maybe describe this sound youre hearing?
when does it happen?
do you have skid plates? / other relevant aftermarket parts?

 

Learned something new today! Thanks!

 

Welcome!

There is some debate on whether or not coiling is needed. All depends who you ask.

 

Lol!

 

I mean it does make sense to me.

What are the drawbacks of coiling? More pressure is needed because it’s not a straight line?

 

That's just funny right there...

 

None, there is a proportioning valve, so doesn’t matter what the length or shape the line is.

 

From my experience, you coil for three reasons:
Increased volume in a limited space
To get more line area for heat dissipation
Expansion and contraction of the space between components

 

Forbidden slinky

 

Pressure is pressure, straight line or around a curve. The coil would allow the brake line to flex over a longer length of brake line, brake line doesn't like to bend a lot. It will bend some, but the more it does the weaker the line becomes.

 

I have professional water extraction equipment and the less coils the vacum hose has, the better the suction. So I just based it off that.

 

Lol pressure is not pressure, especially in a hose. Longer the line the more the line can act as an accumulator of sorts because lines flex and fluid compresses a bit.
But, i don't know anything about fluids...

 

Judging by your screen name, think you know what you’re talking about.

I am just a shade tree knuckledragger.

 

Thanks for answering my question. Always a good time lol. Thanks gents. As to my squeak, who knows. It only happens when I make a left turn going into a dip. And even then it’s only like 50% of the time.

 

Yeah that’s what I thought.

I always try to have the vacum hose as straight as possible when using this guy at customers home.