Loud sound when engaging reverse gear (CVT)

[Clement]

Mitsubishi ASX with CVT (3 months)

 

Got this problem in the mornings when engaging the reverse gear after the car is parked overnight on a level ground.

It only happens when shifting from "P" to "R" where a loud sound (like something grinding or cracking) is heard and the car reverses normally.

In "D" mode everything is normal and no noise is heard.

Only happens like once or twice in a month, puzzling.

 

Anyone knows if this is a serious problem?

 

 

 

[MQX87511]

  On 7/25/2016 at 8:19 AM, Clement said:

Mitsubishi ASX with CVT (3 months)

 

Got this problem in the mornings when engaging the reverse gear after the car is parked overnight on a level ground.

It only happens when shifting from "P" to "R" where a loud sound (like something grinding or cracking) is heard and the car reverses normally.

In "D" mode everything is normal and no noise is heard.

Only happens like once or twice in a month, puzzling.

 

Anyone knows if this is a serious problem?

still under warranty, right?

go back to dealer soonest, nothing can do yourself

[Shando]

Ok, next time try put the gear in neutral before you pull the handbrake, then put to park.

[Zxcvb]

  On 7/25/2016 at 8:36 AM, Shando said:

Ok, next time try put the gear in neutral before you pull the handbrake, then put to park.

This method like manual transmission to me. Lol.

[Slowpoke]

die liao... it's your engine head gasket blown 

 

 

 

just joking   , but seriously, your car still under warranty but rather trust a bunch of strangers on some internet forum to diagnose your car? 

[Fcw75]

  On 7/25/2016 at 8:19 AM, Clement said:

Mitsubishi ASX with CVT (3 months)

 

Got this problem in the mornings when engaging the reverse gear after the car is parked overnight on a level ground.

It only happens when shifting from "P" to "R" where a loud sound (like something grinding or cracking) is heard and the car reverses normally.

In "D" mode everything is normal and no noise is heard.

Only happens like once or twice in a month, puzzling.

 

Anyone knows if this is a serious problem?

 

Do you shift to P after you parked, release the brakes then pull handbrake? If so, it might have cause this sound.

 

Next time try shift to P after you parked, pull handbrake then release the brakes.

[7hm]

  On 7/25/2016 at 9:49 AM, Fcw75 said:

Do you shift to P after you parked, release the brakes then pull handbrake? If so, it might have cause this sound.

 

Next time try shift to P after you parked, pull handbrake then release the brakes.

 

yeah... should try this. If you shift to P then release brakes before pulling handbrake, a lot of the stress gets applied to the parking pawl, which can then cause noise when shifting out of P later on

[Fcw75]

  On 7/25/2016 at 10:41 AM, 7hm said:

yeah... should try this. If you shift to P then release brakes before pulling handbrake, a lot of the stress gets applied to the parking pawl, which can then cause noise when shifting out of P later on

 

Yes yes, that's what I meant. The load of the car will be on the gearbox. I don't know how to describe it exactly but I hope TS know what we meant and give it a try.

 

All the best!

[Mkl22]

Park outside and happens more often when it rains? Then it's the brakes

[Watwheels]

Aiya, after raining the brake rotors have a layer of rust. So when you shift from P to R you control your brakes to reverse. The contact between brake pad and rotor will have grinding noise. You first time driving?

[Clement]

  On 7/25/2016 at 8:36 AM, Shando said:

Ok, next time try put the gear in neutral before you pull the handbrake, then put to park.

 

Alright, seems that I am parking the car the wrong way.

Always put gear in P, then pull handbrake.

For those seeking for a possible solution,

found this on an American Nissan Versa Forum:

 

"You are causing excess wear, tear, and strain on your

transmission and need to change the way you park

immediately.

 

The parking pawl inside the transmission is not made to

hold the weight of the car, they are made simply to

prevent the car from rolling on a level surface. ANY

TIME You park a vehicle on an inclined surface you need

to use the parking brake. That is why they still exist in

every vehicle whether its an auto or manual they

are designed to hold the weight of a vehicle.

 

When you park your vehicle on your driveway, BEFORE

you put it in park while still holding the brake, you need

to pull your parking brake handle. Then, put it in park

and turn it off.

 

When you go to leave for work or

whatever, start your car, put your foot on the brake,

release the parking brake and then put it in reverse.

 

When you do this, you will no longer hear that loud pop

when putting it in gear. This is how to correctly park on

steep grades and prevents wear and possible failure of

the parking pawl which is inside your transmission and

will require disassembly to replace.

 

My driveway is very steep and I have to do it everyday."

 

 

 

[Shando]

So have you tried it and solve your "sound" problem?

[Clement]

  On 7/25/2016 at 1:44 PM, Watwheels said:

Aiya, after raining the brake rotors have a layer of rust. So when you shift from P to R you control your brakes to reverse. The contact between brake pad and rotor will have grinding noise. You first time driving?

 

LOL, am not a first time driver, am aware of the rusting problem.

No, it is not brake grinding noise, it is like a loud popping kind of sound.

Sort of like a small explosion, hard to describe the noise.

  On 7/26/2016 at 3:48 AM, Shando said:

So have you tried it and solve your "sound" problem?

 

Yes, have tried it last night, no noise this morning.

Have to monitor and see if it comes back.

 

The strange thing is that my previous car also using CVT, does not have such a problem!

[UncleAtas]

Have u check ur tire pressure?

[Clement]

  On 7/26/2016 at 8:51 AM, Sickboi said:

Have u check ur tire pressure?

 

Yes, tyre pressure is within the recommended spec.

Using TPMS so tyre pressure data is always displayed.

  On 7/25/2016 at 8:29 AM, MQX87511 said:

still under warranty, right?

go back to dealer soonest, nothing can do yourself

 

Yes, but this noise only appears once / twice a month.

Go to workshop got no noise, so hard for them to troubleshoot.

  On 7/25/2016 at 9:49 AM, Fcw75 said:

Do you shift to P after you parked, release the brakes then pull handbrake? If so, it might have cause this sound.

 

Next time try shift to P after you parked, pull handbrake then release the brakes.

 

Yes, the first part is what I do!

 

The second part should be as follows:

- shift to N after parking

- pull handbrake

- shift to P

- release brake

- off the engine.

 

This is supposed to be the 'correct' way to park the car.

[Fcw75]

Shift to N first is a waste of time.

[inlinesix]

  On 7/27/2016 at 1:57 AM, Clement said:

Yes, tyre pressure is within the recommended spec.

Using TPMS so tyre pressure data is always displayed.

 

Yes, but this noise only appears once / twice a month.

Go to workshop got no noise, so hard for them to troubleshoot.

 

Yes, the first part is what I do!

 

The second part should be as follows:

- shift to N after parking

- pull handbrake

- shift to P

- release brake

- off the engine.

 

This is supposed to be the 'correct' way to park the car.

 

There is no supposed to be the correct way to park.  It all depends on how much u love your car.

 

Your order a bit not so correct aslo

 

- shift to N after parking

- release brake: To release load from GB

- pull handbrake

- shift to P

- off the engine.

I usually off engine before shift to P as P has a locking mechanism.  But my current car does not allow me to off engine in N.

[Fuelsaver]

my sequence at parking lot:

 

- keep foot brake depressed

- shift to N

- apply park brake / pull handbrake

- release foot brake to allow vehicle minor movement before stop due to possible road surface inclination (may not need if pull handbrake much harder)

- shift to P

- off engine

 

may not apply to those with electronic park brake in recent new cars.