Engine Surge

[Koppster]

My 6.2 engine surges from time to time. Only happens at very low speed, almost always when in a parking lot making a turn in to a space, etc.

Same thing happened with my 21 LTZ 5.3. Might be me but I have paid attention and have not observed anything I'm doing.

A little scary.

Thanks
Rick

 

[MO_ZR2]

Maybe expand a bit on “surge”? Noteworthy RPM jump? Brake slippage? Never had anything like this personally.

 

[Koppster]

Maybe expand a bit on “surge”? Noteworthy RPM jump? Brake slippage? Never had anything like this personally.

The engine accelerates briefly, tends to surprise me when it happens. I don't believe my foot is on the gas when it happens.

 

[MO_ZR2]

have you had others try to park it to see if it’s consistently happening? If others see it repeat for them, then I would recommend a trip to the dealer so they can see it happen and begin to debug it. If it doesn’t happen to others…need to check brake/skinny pedal foot contact when parking my friend

 

[cgrubb1]

Mine does it at startup every now and then. Will rev up to 2000-2500 rpms for a second or 2 before it goes back down. Never done it out of park though

 

[mw90001]

What kind of floor mats do you have? Make sure nothing is inhibiting your throttle pedal.

 

[wutang61]

I will say that the throttle tuning of these trucks is heavily slanted towards economy. Big delays are built in to filter out “unintended user throttle input”.

As a result power delivery at slow speed can be Surge-y. I’d do anything to go back to a physical throttle cable in modern cars.

Anything for the CAFES and the tailpipe emissions.