magyver

So when I park in my driveway in 1st, the car will slowly go back down the driveway...

Does that mean I have weak compression? Would it be covered if it is a certified pre-owned ?

criminaltc

What? Please elaborate.

Greg S

iTrader: (1)

If it's a manual, use the parking brake. The engine will only hold it up to a certain point and then gravity wins. This explains it more, http://www.cartalk.com/content/will-...roll-down-hill

magyver

Not much to elaborate on, but like I said, the car will roll down the driveway even when it is in gear, 1st gear, (it is a stick), turned off, and me out of it. I would have thought that the engine compression would be strong enough to hold it on a wimpy 9 degree pitch with/out using the parking brake...

Yes I know you should always use the e-brake, and I do, but I still don't think a 2010 with 40K on it should be able to do that... my s-10's with 180K didn't do it , and they never had a parking brake, they were always broke.. never had an issue, nor did I have an issue with my SC'd tC, it always held its ground.. so that's what got me to thinking... I don't drive it everyday, maybe 4 times a month as I have a company vehicle, but want it fixed if its considered a warranty issue...

Just curious, looking for some background before I call the dealership and sound like an idiot... I'd rather only be a partial idiot... never go full idiot..

Greg S

iTrader: (1)

The easiest thing to do would be have a mechanic do a compression check so you would know for sure. Then if it is low, when you take it to the dealership you can have that in hand to prove it. It'll cost a little money but at least you'll have piece of mind and not pay dealer prices for the compression check if it isn't low.

magyver

Yeah, sounds like good advice. Thanks!

criminaltc

No. Do the compression test yourself. You can get what you need at Autozone. You just have to rent it, but they'll give you your money back when you return it. All you do is pull one spark plug at a time. Remove one, put the compression tester in its place, and try to start it. It will show you your compression on that cylinder. Shouldn't take you too long, it's easy and very important to know. But what I want to know is what kind of hill are we talking about? Haha.

jct

you really should be putting it in 3rd gear not first

criminaltc

jct! My ninja! What is up my man?

jct

this is what happens when you leave it in first... if it was in third it will stall out...

criminaltc

Hahaha

magyver

"Car rolls down driveway backwards when in 1st..9 degree angle"

RichBinAZ

In England, the "e-brake" is called a hand brake. And to pass the driving test you have to show that you are proficient with it. Part of that is leaving the car with the handbrake on and the gears in neutral.
The piston rings in a car engine DO NOT form a perfect seal, they have a gap in them so the compression will slowly bleed away. The fact that your other cars didn't roll down the driveway is pure luck.
https://www.google.com/webhp?sourcei...0ring%20images