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upalranku

rpm problem

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my allion 2013 cars rpm goes very low and car start vibrating when it is in idle, (N). but when it starts first time in morning it works fine. what may be the problem

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1 hour ago, upalranku said:

my allion 2013 cars rpm goes very low and car start vibrating when it is in idle, (N). but when it starts first time in morning it works fine. what may be the problem

What is the RPM you see when it start Vibrating. Did you do a Tuneup recently ?

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3 minutes ago, upalranku said:

change battery recently and rpm shows below 400

Then drive for 100km or so and see. Maybe ecu got reset due to battery replacement and need some relearning to get things normal. 

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Yes it may be due to battery replacement as well. Why dont you remove the battery terminal for about 10mins and re-plug it. 'Normally if you remove the battery and put it back the RPM goes high according to my past experience.  

In normally these vehicles should have 600 - 750 RPM at idle, depending up on whether AC clutch is engaged or not.

Anyway if you have not done the Tuneup recently, better try a Tune up too.

Do you see the Check Engine light on while the Engine is running ?

 

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10 hours ago, hrm said:

Then drive for 100km or so and see. Maybe ecu got reset due to battery replacement and need some relearning to get things normal. 

Agree. If this started happening immediately after battery replacement, it's probably because the ECU was reset. Driving a few kms in mixed conditions (with AC on) should allow time for the ECU to re learn. 

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17 hours ago, raveeJaya said:

Yes it may be due to battery replacement as well. Why dont you remove the battery terminal for about 10mins and re-plug it. 'Normally if you remove the battery and put it back the RPM goes high according to my past experience.  

In normally these vehicles should have 600 - 750 RPM at idle, depending up on whether AC clutch is engaged or not.

Anyway if you have not done the Tuneup recently, better try a Tune up too.

Do you see the Check Engine light on while the Engine is running ?

 

engine light off

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21 hours ago, upalranku said:

change battery recently and rpm shows below 400

Was the battery swap done without a backup?

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57 minutes ago, Rumesh88 said:

Was the battery swap done without a backup?

yes battery swap done without back up

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