Intermittent Engine Stall After Hard Brake

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May 5th, 2022, 4:58 PM

#21

TishLynn83

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Colorado 2.8

I have a 2006 Colorado 2.8 with an automatic transmission that is shutting completely off when braking, just not every time I use the brakes. It has happened several times as I am coming home. The road is rough right before I turn so I tend to hold the brakes slightly to keep the truck going slower. When I go to make the turn is when I realize the truck has turned off. I've been trying to watch the guages more as I come home and have noticed the RPMs will drop and bounce really low unless I take my foot off the brake. I ran the codes and listed them below. Any ideas?

P0449
P0030
P0017

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September 21st, 2022, 7:19 AM

#22

Paschall7

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2015 Sierra

Twice now I've had the engine stall after a hard brake.
Once on I-35 and almost **** myself.

All the older posts seems to be about older vehicles.

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September 24th, 2022, 4:37 PM

#23

Wavelength

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Location: Mims, FL. Home of the flying sunset cans.

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Idle RPM

Quote:

Originally Posted by warthogcrewchief

Thanks. The RPM is right on at 600 RPM. I was thinking about how I wanted to attack this...fuel or air. I know it has a recent (within a year) distributor and plug wires. Plugs, MAS clean, and fuel additive doesn't take much time or money at all to do.

Thanks for the input. It helps to validate what I was thinking.

Try revving in neutral and suddenly release the accelerator. If the engine tries to die, you could try a professional injector cleaning. Cheers. Wavelength.