Car shake when A/C on

hasibban (bani ban) 2021-04-19 16:39:34 +0500 #1

my Passo gets engine shake and then off when i turn the A/C on..its ok when the car is on move but when i brake it and stop the car its shake a bit and engine gets off ...please any suggestions ..thnx

capsat (ومن شر حاسد إذا حسد) 2021-04-19 16:42:37 +0500 #2

visit a workshop which can scan the car. Possible vacuum leak is causing engine to stall at idle
@hassan1991 @margallar @SER_GTR @dani_kk @rajaatta

Hassan1991 (Electrical Engineer ) 2021-04-19 16:58:04 +0500 #3

Does the rpm drops?

hasibban (bani ban) 2021-04-19 17:19:59 +0500 #4

Yes Sir..it drops sometimes

Hassan1991 (Electrical Engineer ) 2021-04-19 17:53:56 +0500 #5

Scan the car. If you got any scanner hook it up and share the results.
Can be a vacuum leak as mentioned by the respected member.
Between anything done to throttle body?

rajaatta (Raja Atta) 2021-04-19 21:27:58 +0500 #6

Sir ji model is not mentioned pre 2010 uses cable throttle along with iscv valve and post 2010 use electric throttle system

SER_GTR (SER_GTR) 2021-04-20 14:08:33 +0500 #7

possible IACV Jamn Issue Could Cause It Too..

mention model of passo

hasibban (bani ban) 2021-04-22 11:43:46 +0500 #8

i am great thank full to all respected members for your concern..
the model is (passo 2011+hanna)
second, I scanned the car but the computer was unable to detect any error code. so the machinic told me that it could be electrical issue ..

hasibban (bani ban) 2021-06-19 23:30:23 +0500 #11

got the scanned Sir but there is no any code. Everything is fine but engine is still die sometimes with A/C on. Specially in traffic area.

Hassan1991 (Electrical Engineer ) 2021-06-19 23:38:59 +0500 #12

Overfilled gas can cause this issue. Did you ever got it filled?

hasibban (bani ban) 2021-06-20 21:16:05 +0500 #13

manytimes i did the tank full Sir..

Hassan1991 (Electrical Engineer ) 2021-06-20 23:27:56 +0500 #14

I'm taking about AC gas. It should be filled to a certain level.

MADDYBOY2 (sheikh123) 2021-06-21 13:13:50 +0500 #15

which oil you are using ?
when had you done its tunning ?

hasibban (bani ban) 2021-06-22 21:55:58 +0500 #16

OIL (5W30)
I tune my car when the engine oil is getting dark..(like 2-3 month)

MADDYBOY2 (sheikh123) 2021-06-23 15:45:18 +0500 #17

just get you car tune after 3k to 4 k

try to keep clean your throttle body

SER_GTR (SER_GTR) 2021-06-23 16:09:43 +0500 #18

these are DBW Throttle body ...they require no tuning cleaning of any kind....doing so will damage it actually.....

just check MAF sensor..clean if its dirty safely and put on scanner...it will reveal cause of low idle ....just find a good sensible guy who knows how to read readings and diagnose fault

hasibban (bani ban) 2021-06-23 17:07:04 +0500 #19

i am the sensible Guy Sir.i can do that.and actually i did that already...but no Code found..

SER_GTR (SER_GTR) 2021-06-23 17:10:47 +0500 #20

its not about codes...its about checking sensor output and live values for lower/high readings to identify possible cause

hasibban (bani ban) 2021-06-23 17:41:24 +0500 #21

we found the fault Sir..its just the battery which could not take load when start the A/C..i changed the battery to new one and im good now....

SER_GTR (SER_GTR) 2021-06-24 13:01:23 +0500 #22

glad you fixed but battery issue will lead to slugiist /no start/charging issues and dead on cold start