Engine surging

Tiny
HARRY LONG
  • MEMBER
  • 2003 CHEVROLET BLAZER
  • 75,145 MILES
Can feel engine surging while driving. Tachometer will show drop in RPM’s. Just had a new fuel tank sensor installed 3 weeks ago.
Sunday, December 15th, 2019 AT 11:11 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

Is the check engine light on? If it is, can you have the codes checked and let me know.

Some possibilities:

1. Low fuel pressure from a bad fuel pump.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

2. Catalytic converter clogged not allowing the engine to breathe.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

3. EGR not seating fully closed form carbon the end.

https://www.youtube.com/watch?v=51z-k4YRHI4

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, December 15th, 2019 AT 12:22 PM

Please login or register to post a reply.

Related Engine Surge Content

Surging
GUIDE
Surging
An engine or motor surge is caused by an imbalance in the computer system which cannot be corrected within the parameters of the vehicle's operating program, in other...
VIEW MORE

Sponsored links