Car vibrating and rpm drop in D when stationary but not when moving

saad.ikram.5688 (saad.ikram.5688) 2017-07-08 14:06:16 +0500 #1

I have a corrola 2016 so practically brand new only 15k driven. Its an automatic and when car is stopped in D rpm drops from 800rpm to 600 rpm and little vibration (AC turned off) and when shifted to neutral again 800 rpm. Shifted to R again rpm drops to 600rpm.
I'll upload the video showing this in a little while

Need Help

capsat (ومن شر حاسد إذا حسد) 2017-07-08 20:38:43 +0500 #2

check for air cleaner, MAF & TPS seems likely a vaccum leak

saad.ikram.5688 (saad.ikram.5688) 2017-07-09 14:36:24 +0500 #3

Is it easy to check it myself or should I take my car to toyota and ask them why this happens ??

haseeb.basharat 2017-07-09 17:07:03 +0500 #4

Which variant of corolla you have? Is this gli auto?

haseeb.basharat 2017-07-09 17:08:04 +0500 #5

It will jerk at all speeds if there is a vacuum leak.

capsat (ومن شر حاسد إذا حسد) 2017-07-09 20:28:49 +0500 #6

while driving vacuum leak will result in HIGH Fuel consumption,
vacuum leak jerk will result at idle & upto 1000 rpm only

haseeb.basharat 2017-07-09 20:38:22 +0500 #7

Nopes in case of corolla vaccumm leak jerks are noticable on less throttle, be it 100km/h or 40km/h.
Faced it before, its not a vaccumm leak.
Looks like its gli auto and this situation is pretty normal in gli auto

capsat (ومن شر حاسد إذا حسد) 2017-07-09 20:51:28 +0500 #8

get it scanned before you lift the hood and let chora chammar tin box mechanic screw up any thing inside. scanner will give you exact problem at idle & high rpms since there is no check light, I will focus & emphasize over Vacuum leak. by all means.

haseeb.basharat 2017-07-09 21:13:55 +0500 #9

When did you change its airfilter btw?

saad.ikram.5688 (saad.ikram.5688) 2017-07-09 22:00:28 +0500 #10

Its 2016 GLi Auto . Its newer one with immoblilizer

saad.ikram.5688 (saad.ikram.5688) 2017-07-09 22:01:50 +0500 #11

Have previously owned a manual 2010 Gli . Owned it upto 2015 and not once in 6 years of ownership i took it to any mechanic other than Toyota Motors.

I still haven't gotten time to take it to the dealership and get a scan . So i thought till then ill ask PW members

saad.ikram.5688 (saad.ikram.5688) 2017-07-09 22:03:11 +0500 #12

Engine air filter was changed at 15k and i have periodically cleaned it myself after every 2500kms. Its an easy task so i do this at home after every 2500kms.

saad.ikram.5688 (saad.ikram.5688) 2017-07-09 22:04:07 +0500 #13

How big is the vacuum leak problem if it is the problem in my case .

And car drives perfectly fine at all speeds btw.

capsat (ومن شر حاسد إذا حسد) 2017-07-09 22:20:16 +0500 #14

a puncture size close to throttle body or AC IDLE tubes ( works even when ac is off )

saad.ikram.5688 (saad.ikram.5688) 2017-07-09 22:31:55 +0500 #15

Video showing how rpm drops from 800 to 600 when shifted in D from N and car vibrates a little

ahsandon007 (ahsandon007) 2017-07-10 11:07:18 +0500 #16

Clean throttle body, check plugs condition replace if needed, reset ecu.

saad.ikram.5688 (saad.ikram.5688) 2017-07-10 11:22:27 +0500 #17

Throttle body and condition of plugs should be ok right as its only driven 15k and only 1 year old car.

But yes do plan on getting a ecu scan on the coming weekend

jehanzebnasir (jehanzebnasir) 2017-07-10 11:24:43 +0500 #18

Check your gear mounting as well if its broken than it will cause this issue as well.

ahsandon007 (ahsandon007) 2017-07-10 11:46:52 +0500 #19

When you leave brake does car accelerates normally or with jerks ?

capsat (ومن شر حاسد إذا حسد) 2017-07-10 15:26:41 +0500 #20

go for warranty check up