Car tugging

Tiny
RAYMOND RIVERA
  • MEMBER
  • 2002 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
Is I press on the accelerator the car begins to tug as I'm driving 40 to 60 miles per hour tugging may increase when I take my foot off the accelerator it doesn't tug. I've tried several gas treatments and the treatments and clean out the jets. I don't know what's causing the problem or how to fix it.
Friday, February 28th, 2020 AT 4:20 AM

9 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good morning,

There are no additives that will help injectors. If it is an injector, a service needs to be done that will clean them. It requires special equipment to disable the fuel pump and injector a special cleaner directly into the injector for cleaning.

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

How old are the spark plugs? This is the most common failure for this.

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

Also, how long has it been since you changed the transmission fluid and filter?

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Roy
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Friday, February 28th, 2020 AT 4:52 AM
Tiny
RAYMOND RIVERA
  • MEMBER
  • 5 POSTS
I changed the spark plugs about 1 month ago and I had to change the transmission fluid three months ago, but I did not change the filter.
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Friday, February 28th, 2020 AT 5:07 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Okay, I doubt the filter is causing this issue.

I would suggest having the injectors cleaned.

Roy
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Friday, February 28th, 2020 AT 5:29 AM
Tiny
RAYMOND RIVERA
  • MEMBER
  • 5 POSTS
Yes, it runs good besides the hesitation. Hesitation starts at around 2 RPM's.
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Friday, February 28th, 2020 AT 5:35 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
I understand. It could still be an injector that is not spraying the correct pattern.

Roy
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Friday, February 28th, 2020 AT 5:42 AM
Tiny
RAYMOND RIVERA
  • MEMBER
  • 5 POSTS
Thank you for your help. One more question, can I clean the injectors myself?
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Friday, February 28th, 2020 AT 5:45 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Not without special equipment to inject a cleaner directly into the fuel system.

Roy
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Friday, February 28th, 2020 AT 5:47 AM
Tiny
RAYMOND RIVERA
  • MEMBER
  • 5 POSTS
Thank you.
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Friday, February 28th, 2020 AT 5:48 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
You are welcome.

Always glad to help.

Roy
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Friday, February 28th, 2020 AT 5:54 AM

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