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Accelerating hesitation?

Tiny
KHALIDDVD
  • MEMBER
  • 2010 HYUNDAI TUCSON
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
Hi,

While I press the gas pedal there is no immediate response of acceleration increasing. After keeping press pedal sudden high increase in the cruising speed with rough loud sound and sometimes exploding sound from exhaust manifold or pipe (maybe some blockage).
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Monday, May 22nd, 2023 AT 1:19 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,701 POSTS
Hi,

Does the sound seem like it could be a backfire? If so, take a look through this link:

https://www.2carpros.com/articles/engine-backfires-while-running

A backfire can be caused by a few different things. For example, a fuel mixture issue, a misfire, along with other things. So, is the check engine light on while the engine is running? Let me know.

Joe

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Monday, May 22nd, 2023 AT 8:11 PM
Tiny
KHALIDDVD
  • MEMBER
  • 55 POSTS
No check engine warning.
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Monday, May 22nd, 2023 AT 9:50 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,701 POSTS
Hi,

Is the noise you hear loud enough to record? If it is, could you record and upload it for me to hear?

Also, I need to know if you have a live data scan tool. You should check for engine vacuum leaks as well.

Here is a link that explains how to locate and repair a leak:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Let me know.

Joe
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Tuesday, May 23rd, 2023 AT 8:23 PM
Tiny
KHALIDDVD
  • MEMBER
  • 55 POSTS
Exhaust muffler damage found and fixed.
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Wednesday, May 31st, 2023 AT 1:02 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,701 POSTS
Hi,

Thank you for the update. I'm glad to know it has been repaired.

Feel free to come back anytime in the future.

Take care,

Joe
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Wednesday, May 31st, 2023 AT 9:51 PM

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