Stalling after putting in drive and accelerating

Tiny
TECBOG5.0
  • MEMBER
  • 2004 MAZDA 6
  • 2.3L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 168,970 MILES
Keeps stalling after putting in gear and taking off. Idles fine.
Wednesday, January 20th, 2021 AT 7:25 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Just to clarify the issue, are you able to put it into gear at all or does it stall as soon as you put it in gear? You said it can idle fine so I assume this is there is not issue when in park but as soon as it is put in gear, it stalls.

If so here is a guide that will get us started:

https://www.2carpros.com/articles/stall-at-idle

Also, I attached the testing that we need to perform in order to figure this out. Let us know what questions you have. Thanks
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Thursday, January 21st, 2021 AT 4:06 PM
Tiny
TECBOG5.0
  • MEMBER
  • 3 POSTS
I can hold the brake and give it gas and seems fine. But as soon as you start to take off it shuts off does it in reverse too just not as much. But yes goes into gear fine and has no check engine light.
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Friday, January 22nd, 2021 AT 11:56 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Okay. I suspect this issue is caused by an idle issue in gear. So let's do a couple things. Here are a couple guides that we need to review and start crossing things off the list.

This will get us started on what this issue is:

https://www.2carpros.com/articles/stall-at-idle

Then I think we have a vacuum leak as the root cause. So here is a guide that will help us find a vacuum leak:

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

Lastly I am attaching the process from the manual to figure this out and as you can see the top issue is a vacuum leak so let's start there. If we prove there is no vacuum leak then work through the rest of this list attached below. Thanks
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Saturday, January 23rd, 2021 AT 5:22 PM

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