RPMs drop while driving?

2015 HYUNDAI ACCENT
170,000 MILES • 2WD • AUTOMATIC
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SHAFIQUEPATHAN
  • MEMBER
  • 1 POST
Dear all,

My name is Shafique from Saudi Arabia.
Before 3 months while was driving the car suddenly drops the RPMs, and goes to 100 to zero speed, i shut off the engine and start again then it run normally, after 10km again same problem happen. i do the same it start normally again and then after 5km again same thing happens. i showed to mechanic and he changed the throttle, now after 3 months again same problem happens with me. he checked the throttle and he said it is okay. he changed the plugs, but the issue is not resolved. please guide me to solve this problem.

Thank you
Jul 5, 2021 at 3:59 AM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

The first thing I would suggest is to have the CAN bus system scanned for codes. CAN stands for controller area network. Basically, all the modules/computers are tied together via a few wires. By scanning the entire system, it should identify fault codes regardless of the module they are stored in.

https://youtu.be/InIlnsjOVFA

If this has been done, let me know. Also, if you have it done, let me know what codes are found.

Take care,

Joe
Jul 5, 2021 at 8:27 PM
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