While driving the engine begins surging, but it does not stall?

Tiny
KENNY HICKS
  • MEMBER
  • 1994 DODGE COLT
  • 1.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 131,475 MILES
Starts right up every time. Drive around the block, engine begins surging. Doesn't stall, or shut off. Still drives okay, I'm lost, can you help?
Thursday, October 26th, 2023 AT 2:09 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,755 POSTS
This happens when there is a vacuum leak or the EGR valve is opening when it should know, I would disconnect the EGR vacuum line to see if that fixes it and then use this guide when the engine is cold to try to find the vacuum leak:

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

Check out the images (below). Please let us know what happens.

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Thursday, October 26th, 2023 AT 1:26 PM

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