Engine shuts off when transmission is shifted into gear?

Tiny
AGUSTINCERNA
  • MEMBER
  • 1992 CHEVROLET 2500
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 210,300 MILES
I changed the starter and spark plugs and spark control module and a brand-new battery, but the thing is that if it’s warmed or not I put it on drive or reverse it shuts off and when I turn it back on it turns on and I put it on reverse or drive it shuts off.
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Sunday, August 7th, 2022 AT 2:49 PM

1 Reply

Tiny
KEN L
  • ADMIN
Yep, this happens when the torque converter falls apart and locks up the engine to the transmission, so when you put in gear it stalls the engine much like a stick shift car when you let the clutch out too fast. It could also be a vacuum leak which this guide can help find, test it with the engine cold:

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

and

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

If you can shoot a quick video so i can see the engine stall, I can tell for sure. You might want to try holding the idle up a little when you put it in gear, if the truck tries to take off you know it is the converter. Let me know what you find.

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Monday, August 8th, 2022 AT 11:49 AM

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