Accelerating hesitation?

2010 HYUNDAI TUCSON
160,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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KHALIDDVD
  • MEMBER
  • 56 POSTS
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).
May 22, 2023 at 1:19 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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

May 22, 2023 at 8:11 PM
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KHALIDDVD
  • MEMBER
  • 56 POSTS
No check engine warning.
May 22, 2023 at 9:50 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
May 23, 2023 at 8:23 PM
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KHALIDDVD
  • MEMBER
  • 56 POSTS
Exhaust muffler damage found and fixed.
May 31, 2023 at 1:02 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
May 31, 2023 at 9:51 PM
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