Two or 3 times a year, when I first pull out of the garage, I hear a loud POP. I'm backing out. I think it's related to either recent wash job or high humidity/ rain & probably the parking brake sticking till it breaks loose with a loud POP (rust?) on the 6 speed (Fred). I've never heard it on the automatic (Wilma), but then we never use the parking brake on the automatic. Anyone else experience this occasionally?

Maybe it's just the pads sticking to the rotor till the thin film of rust breaks loose??

 

I think I have but it wasn't that loud. I get it when I back up... I just assume it is the brake pads and it is normal because I heard other cars do it.

By the way, I never use the parking brake unless I am on a hill. I always keep it in first gear when it is sitting flat in the garage or a parking lot. If I am on a hill I will engage the barking brake and let it roll a couple inches.... then I will put it in 1st gear as a backup.

 

Turning the steering wheel so that the car will roll against the curb and not into traffic, is another safety factor you can add when parking on a hill.
Moisture in the brake pads after a rain or a car wash will let rust form between the pads and rotors, as they touch all the time and lightly seizes up the brakes. After a car wash, warm up the pads and rotors by driving around the block using the brakes hard a few times before parking the car.

 

Every time right after I wash my car (6 speed), a popping noise comes from the back. It is not one pop, but a series of pops, and only happens in reverse. After the car is dry, it is fine. It has done it since I bought it new last December. I just assumed it was normal.

 

I live in coastal Georgia highest humidity around 80% majority of the year, I've NEVER heard a pop of any kind in my Crossfire!

DEB

 

Yeah its best to keep away from fathers, best not to break up families.

 

Washed my car a few days ago and tried out the leaf blower as a different drying method. Went to back the car into the garage and heard 1 loud pop, loud enough to worry me, until I came upon this thread. I too have a 6 speed.....

 

Add me to the list, loud pop (passenger side rear) after washing car, occurs when backing up. Six speed, 2006.

 

Quote:

Originally Posted by Deborah Walker

I live in coastal Georgia highest humidity around 80% majority of the year, I've NEVER heard a pop of any kind in my Crossfire!

Yer not doing it right then Deb!

 

LOL yeah maybe you are right!!!

 

There is always a lound 'Pop' in my car...... I think it has to do with all those years of shooting......


edit: and I dont hear anything on my car when backing. Even after a recent wash. Always set the parking brake when I park.

 

I'm thinking it's only the 6 speeds ....cause people with automatics don't usually put on the parking brake.

 

My automtic did it a few times also, but not recently. The first time, I thought I backed into something. There's a thread somewhere about the bushings causing a clunk....

 

It is just the emergency brake pad sticking to the drum. If you don't use the emergency brake, it doesn't do it......or if you pull forward just a couple of inches and then back up, it will not do it either.

Nothing to worry about though.

 

So thats the `POP'. I have it at times but I knew what it was so I never thought about it as being the famous `POP'. You get the same thing on drum brakes of course as the the parking brake uses shoes as well.
It just goes to show that a `POP' to some people is a `BOING' to someone else. You can actually hear the springs go `BOING'.

 

I've never heard this noise. But I think if you really want to determine the cause, you could always jack up each wheel and rotate it a little so that you can hear where the sound is coming from, prior to moving the car under its own power.

 

Does the "POP" occur when you turn your steering wheel?

 

My 07 Coupe with AutoStick tranny has always made this noise when I parked on an incline. And I always use the parking brake to avoid having the tranny provide the braking force during parking whether on a hill, flat, garage, or otherwise. (Note: If anyone has ever had an automatic tranny linkage somewhat "locked up" when the car rolled back and used up the minimal amount of backlash in the gear train, you'd set your parking brake too! Manuals aren't susceptible to this "lock up" as all you have to do is engage the clutch and the car is out of gear.)

And as Dan stated earlier, it's the parking brake mechanism "sticking" when used. Over the years, some cars I've owned were more prone to this "pop" than others. Rear drum systems were especially bad about this phenomena when they got wet due to their basic "closed" design. (Note: My Merkur XR4Ti's always did this, since they came with factory rear drums.) That's a primary reason why rear drum systems had rubber plugs for the slot where you adjusted the brake shoes - had to keep the moisture out. With disc brake systems being an "open design", they are exposed to moisture all the time and can occasionally experience this pad "sticking" issue when the emergency brake is used. But the design geometry of disc systems enables moisture to drain off much better, with the resultant that rear disc systems typically do not experience this issue. But it seems like the Crossfire is somewhat susceptible to this phenomena.

And here's another piece of emergency brake trivia. Roberta & I grew up in KCMO and during the winter season you never set the emergency brake on a cold night when you got home. The next morning, your rear brakes would be frozen and you'd be where you were for awhile. Folks up north know what I'm talking about. We probably only experience that kind of weather here in SC maybe less than 10 nights a year.

Later,

 

Dennis, I looked all thru your gallery & couldn't find a shot of your pin stripes.....I've got a Machine Grey also & was very curious how your stripes look.....any good pics to share?

 

This is a bit misleading, upon reading this post you could interpret from it that the emergency/parking brake was the disk brake mechanism, when in fact they are two separate systems.
The so called "popping" does come from the emergency brake, this could be from the pads adhering to the drum face, the cam action mechanism releasing, tight cables due to rusting or lack of lubrication inside the cables. I would suspect that the lever operated cam action is the main cause of the noise.
If the handbrake lever has excessive travel in use, the parking brake should be adjusted. This excessive travel is caused by the cable length being too long and/or too much clearance between the drum and parking brake lining. If the cam is traveling too far it may jam easier. A suitable lubricant, not to much, should quiet the noise and stop rust forming on the contact surfaces of the cam mechanism allowing the cam to operate freely. Infrequent use of the hand brake allows rust to develop and make the cam action stiff.