Car does not accelerate when giving gas

[martyk]

Taking my 2012 4.6 in to check the trans. When we where going to Vegas I would pull out to pass a car, and give it gas the. The car would sit there for about 2 to 3 seconds by for exelerate. Does anyone have this problem.

Regards, Marty

 

[homeofstone]

Re: Car does not exelerate when giving gas

Funny, Exelerate is a Danish band.

 

[landtuna]

Re: Car does not exelerate when giving gas

Taking my 2012 4.6 in to check the trans. When we where going to Vegas I would pull out to pass a car, and give it gas the. The car would sit there for about 2 to 3 seconds by for exelerate. Does anyone have this problem.

Regards, Marty

2 to 3 full seconds sounds like an awful lot of time for a delay.

How much throttle do you give it? Enough to cause a downshift or just a little bit?

If you floor it the transmission will take a second to find the right downshift gear and that may be your hesitation. Try using less throttle or downshift manually then give it the gas.

 

[Gunkk]

OP: No it's not normal.

My '12 4.6 will (and my '09 4.6 before it would) go from 70 to 100 in about 5 seconds with about 1/2 throttle and a manual downshift to 7th or 6th.

If I push the pedal to (but not past) the kickdown stop and it'll down shift a couple clicks automatically and get there a second or so sooner.

I usually don't bother putting it all the way to the floor. Usually just scares the passengers.

 

[craigt]

This sounds eerily similar to the "dead pedal" issue that was beat to death.

http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=13828

OP, let us know if this describes your issue.

 

[martyk]

This sounds eerily similar to the "dead pedal" issue that was beat to death.

http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=13828

OP, let us know if this describes your issue.

The"dead pedal" sound like my issue. Hesitant shifting and gear hunting. I will be taking it in tomorrow for a check up. I hope it is the TCU software update that will correct it.

Thanks for your help,

Marty

 

[martyk]

The"dead pedal" sound like my issue. Hesitant shifting and gear hunting. I will be taking it in tomorrow for a check up. I hope it is the TCU software update that will correct it.

Thanks for your help,

Marty

I got my car back Thursday. They found a update for the shifting problem. Now I will have to see if this is going to fix the "dead pedal". Will get back to the Forum.

Marty

 

[Ambush]

Funny, my genny does this sometimes when leaving a light...scary...

 

[Gunkk]

Did they fix it, Marty?

 

[martyk]

Did they fix it, Marty?

Not sure. I have not had any time to take it on the freeway. They said they found a software up date. I ask what it does, he did not know. They did clear out the ECU so the car would learn how I drive again. Will get back to you after I get it on the Freeway, where I can open it up.

Marty

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[Gunkk]

This service bulletin may also be of some use for you:
http://pages.suddenlink.net/daydrea...odule - Reset and Relearn Adaptive Values.pdf