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  1. Rohit Ratnaparkhi
  2. Service & Maintenance
  3. Tuesday, November 12 2019
Hello,
I own Swift Dzire VXI BS4 2016 and have clocked 58600kms till now. I have regularly serviced my car at an interval of 10,000kms as per recommendation.
Since few days i have been experiencing fluctuations in rpm only on cold start.
When car is started first time in morning RPM rises to 1,500rpm and settles slightly below 1,000rpm and again goes up and down multiple times( say 5-6 times) Till now I haven’t experienced such fluctuations.
This happens only when the engine is cold and no issues with pickup an mileage later when drove
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Hello,

Any Difference in smoke from Exhaust ? can you check on same
Also - any rought start too or increased vibrations

If none of above then - Most likely
> Throttle Body seems full of dirt and possibly issue can be rectified by cleaning same
> Clean Air filter
> Check when spark Plug was last replaced and if replacement due at 60000 Kms then suggest to get it replaced now

In case not then get Throttle body sensor check from Workshop
Hope should help !!


  1. more than a month ago
  2. Service & Maintenance
  3. # 1
Rohit Ratnaparkhi Accepted Answer
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Thank you for your quick response,
I haven't noticed any kind of smoke from exhaust but engine vibration is increased but marginally.
fuel economy is great no issues with that.
My car has been recently serviced and sparks plug were cleaned and air filter was replaced.
When i mention this to Dealer Workshop they claim to be normal and there is no need to clean throttle body.

Regards,
Rohit Ratnaparkhi.


  1. more than a month ago
  2. Service & Maintenance
  3. # 2
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When i mention this to Dealer Workshop they claim to be normal and there is no need to clean throttle body.


Is it normal ?
While i understand that RPM can be higher on cold start and yes decreases gradually which is normal
But is RPM Fluctuation is normal - which is what the issue is

I suggest to change workshop and refer to some trained workshop personnel who can solve this. Most likely seems to be throttle body cleaning which should resolve fluctuation in RPM - means high rpm, then low and then again high

Else, rare chances of Air flow sensor going bad too. But if no other issues with car - i dont think that sensor would be an issue even
Recommend to visit alternate workshop

Hope should help !!


  1. more than a month ago
  2. Service & Maintenance
  3. # 3
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