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Unread 12-08-2007, 08:29 PM   #1
JCDubya
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Hemi hesitation - present in all or some?

'07 HEMI. From a stop, when I give it gas it takes a second to kick in. Does this happen to everyone or only some of the hemis? Anyway to fix it? it's rather annoying.

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Unread 12-08-2007, 09:09 PM   #2
Crookster777
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Bro, everyone of us Hemi owners have it. It sucks.
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Unread 12-08-2007, 09:17 PM   #3
JCDubya
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Bummer. I thought I saw some posts where people said theirs was fine but I was pretty sure it was normal.

just wanted to make sure I wasn't missing some recent 'fix' for it.
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Unread 12-08-2007, 09:23 PM   #4
Crookster777
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You punch it then a sec later before you know it you are at the end of the block. Ive gotten used to it, it dont bother me as much anymore.
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Unread 12-08-2007, 10:27 PM   #5
rwmorrisonjr
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That's the "drive by wire" system: there's no cable to the throttle body so it relies on the computer and throttle position sensor to do the work. That's why I like my 4.7: still an old fashioned cable for instant response.
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Unread 12-08-2007, 10:46 PM   #6
WKTrailRunner
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No hesitation from a dead stop....power brake it a few times and educate your throttle. From low speed either tap down a gear or hit tow-haul.
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Unread 12-16-2007, 09:20 PM   #7
WK_HemiGirl
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Quote:
Originally Posted by JCDubya
'07 HEMI. From a stop, when I give it gas it takes a second to kick in. Does this happen to everyone or only some of the hemis? Anyway to fix it? it's rather annoying.
I am getting this issue in my '06 Hemi, have you found a resolution?
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Unread 12-17-2007, 03:36 AM   #8
Marcus86GLHS
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i get this too on my 2008 and i am surprised that Jeep hasnt fixed this, it's a safety issue in my opinion especially for a newbie driver i almost read-ended a car at an intersection after this hesitation caused me to depress the gas a little more to get a response then POW!!!! the jeep lurched forward like a top fuel dragster. now that i am aware of this, i drive accordingly. but it is unacceptable for a $18,000 Kia let alone a $40,000 Jeep.

lots of cars have electronic throttles these days. for example the Vette has had this arrangement for several model years now and there is zero hesitation with their system.
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Unread 12-17-2007, 06:05 AM   #9
garsarno
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Mine is only intermitent. But I did experience a weird thing yesterday AM - had remote started the Jeep twice to warm it up. When I went into the Jeep and tried to start, the starter or engine just "whirled" for want of a better word. I shut off the key and restarted. Started right up and has not done since.
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Unread 12-28-2007, 04:37 AM   #10
HurriJeff
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I have that delay from "pedal push". I find that everyone beats me off the line at traffic lights because of it. It's sort of like, if I want to get a good reaction time then I jerk the crap out of everyone in the car; and if I want a smooth roll on from the light, everyone else's quicker response gets them going a little faster. Annoying to say the least !
Ive got another gripe, its that torque thing from standing start. This is about Hemi's only ! From a stop, if I push the pedal the the floor, I start moving but not so fast for the first 2 to 3 seconds then I can feel the acceleration really kick in. I know this is not a race forum...but does your Hemi do this ???
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Unread 12-28-2007, 07:58 AM   #11
Marcus86GLHS
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i havent noticed that but i did figure out how to get off the line and use the Hemi power from a standstill: just pre-load the torque convertor by pressing the brake and accelerator pedals at same time, then simultaneously release the brake and jam the accelerator, the Jeep just hard launches.....sweet. i hung in there with a WRX last week using that procedure.
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Unread 12-28-2007, 11:55 AM   #12
garsarno
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I will not share this info with my daughter, who drives our '07 Hemi. I beat her with my '07 Impala SS last week in an improptu race from a stoplight but it was close.
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Unread 12-28-2007, 12:50 PM   #13
Marcus86GLHS
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Imapla SS? thats Hemi Jeep food.

:-)
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Unread 12-28-2007, 01:47 PM   #14
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Quote:
Originally Posted by HurriJeff
Ive got another gripe, its that torque thing from standing start. This is about Hemi's only ! From a stop, if I push the pedal the the floor, I start moving but not so fast for the first 2 to 3 seconds then I can feel the acceleration really kick in. I know this is not a race forum...but does your Hemi do this ???
I'm sure this is normal. It is deffinately a weird feeling, your accelerating hard then all of the sudden your head gets pushed back as if the hand of god came up behind you. I'm pretty sure this came up in one of the engineering sessions and it has something to do with the esp/traction control. I know the engineers said the tranny can take 100% of the HEMI torque in every gear. It's just the tires can't hold the ground at 100% torque in 1st gear or probably even 2nd for that matter. I would love to do 4 wheel peels when taking off, the computer just won't let it happen.
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Unread 01-02-2008, 07:27 AM   #15
anerbe
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if i do a good stab of the throttle, the tires will loose traction for a very brief period and then take off. It's pretty much all the time. If you're having problems, i would definitely pre-load the car by brake-torqueing.
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