2007 Hesitating on acceleration* HELP*

rgregory1965 · 06-28-2007, 08:52 PM

My 2007 hessitates on a hard acceleration, then if i let up a little it takes off....Is this normal? I have only had her 3 weeks.

Thanks for the advice

ProjectTitan007 · 06-28-2007, 09:28 PM

There is a service bulletin on http://x.nissanhelp.com/forums/local....php?catid=322 about this . NTB07-040 is the bulletin number.

Also these trucks have a torque management system that keeps it going to full throttle until after 40 MPH. Could just be that .

dodson914 · 06-28-2007, 09:35 PM

I can't get mine to peel out at all. I've got some things I need to take it in for rattles, fan, etc. but I feel stupid telling them my truck won't peel out wtf. Let us know if you find out what the deal is.

rgregory1965 · 06-28-2007, 09:36 PM

I really appreciate the info...Is there a fix for this....Is that what the service bulliten is for?

I thought something was wrong with it.

I just put the Magnaflow on this past weekend and was wondering if that was the reason.

Thanks again

rgregory1965 · 06-28-2007, 09:45 PM

I read it has something also to do with the feul pump.....I will be taking it into the dealer this weekend....thanks again

ProjectTitan007 · 06-29-2007, 07:25 AM

They might tell you it's just the torque management system. Just be prepared ..

rgregory1965 · 06-29-2007, 04:48 PM

Thanks for your help....I love this truck even with the torque mgt issue. Beats my ole Silverado anyday.

Leprechaun · 07-13-2007, 08:37 AM

I've noticed the same hesitation on my 07 CC...the nissanhelp forums won't send me an email to confirm membership so I can't see that bulletin (tried 2 diff email accts). Anyone know what was mentioned inside? There a fix for this or is that just the way it is?

**Overide** · 07-13-2007, 02:30 PM

The bulletin just talks about how it could be the fuel pump and to take it into the dealership to have them check it for you.

Leprechaun · 07-14-2007, 11:08 AM

curious if anyone has had their truck checked by the dealer for this situation, and if so, what'd they say?

**Arachnid** · 07-14-2007, 11:45 AM

I have an 07. I just went past the 1200 mile mark and gave it the WOT test. Spun the tires and there was absolutely NO hesitation. You need to take your truck back into the dealer.

parks5855 · 07-17-2007, 02:00 AM

Quote:

Originally Posted by Arachnid

I have an 07. I just went past the 1200 mile mark and gave it the WOT test. Spun the tires and there was absolutely NO hesitation. You need to take your truck back into the dealer.

Is your truck a 4x4 w/off road pkg or a 4x2 with big tow pkg? If so you have 3:36:1 gearing which may be why you're not having this problem. Mine is an 07 4x2 crew cab LE with 1300 miles on it now and it won't even squeak the tires a little bit unless your on very slick pavement like well worn chipseal, in which case you might get just a little bit of a chirp out of them. I too love my Titan, I traded in a 07 Chevy Silverado Classic Z71 w/LT3 pkg and 9,000 miles on it, and I'm not sorry I did. My chevy had the 5.3 L V-8 and all it's power seemed to be in the upper rpm range....didn't seem to have much low end grunt at all. Anyway this is my 2nd Titan. My first one was an 04 4x4 crewcab w/off road package and it would EASILY light them up even with only 1k on a tight new motor. I've been trying to figure out why the drastic difference. My 04 was completely stock...no mods. At first I thought it was the gearing difference with the 04 having 3:36:1 and my 07 having 2:94:1 but lately I've begun to wonder if maybe it has more to do with the torque management system interfering with what I'm trying to do with the gas pedal. When you tromp down on it it feels like it's going to go but then it kind of goes soft (like somebody....the computer....via the throttle by wire just closed the butterfly down somewhat) then after about 10 feet or so it feels like it starts to pull again. Right now my truck is completely stock. I test drove a Tundra with the 5.7 and one real nice feature it has is the ability to turn off the computer interference with the push of a switch.....wish our trucks had this....then I'd know for sure if the problem is gearing. Anyway I hope anyone who finds and answer to this problem will post it up....seems like there's quite a few of us with new 07's that are behaving this way. It's frustrating

because I think we all know that our trucks have more power than they're giving us for some reason.....at least off the line anyway. I know my 04 sure did....with the same engine in stock trim and oversize off road tires it would turn them over without even having to floor it....just give a good goose and they'd start to spin. Next step, nismo intake and magnaflow exhaust...should have it installed by the end of the week. I'm hoping this will help.

At speeds above 30 mph or so my 07 feels just as strong as my 04 did.

PS If intake and exhaust mods don't help I think I may check into the uprev tuning software to see if they can circumvent this torque management thing.

Brian

parks5855 · 07-23-2007, 11:41 PM

Ok, here's an update on this problem. Nismo cold air and magnaflow dual exhaust installed. VERY noticeable difference above 30 mph but off the line and below 30 still feels the same. This is making me think even more that the problem here may not be the gearing but rather the torque managment function of the computer messing with things. So, unless somebody posts up that they had this same problem, did the gear swap and solved the problem, then I'll probably end up trying the uprev route next. If I do the uprev I'll post up whether this was the fix or not. Brian

val · 07-24-2007, 07:04 AM

uprev will help you