suds1

Unfortunately, I think your right.

Blu

iTrader: (63)

guess we all have to deal with to studder That is during the summer anyway

Dave B

The 00-01 Maximas have cable-throttles and composite plastic intake manifolds which don't heat soak much. In 02, the VQ manifold went back to heat soaking metal. The 90 SE had a VG motor which has a lower compression and isn't as affected by the heat as badly as the higher compression VQ. Higher compression engines run hotter and are more suseptable to detonation therefore the knock sensor is hyper-sensitive and is constantly adjusting timing and fuel to keep the running at a safe level.

It is very possible that the knock-sensor is super sensitive in the 2K2. When you're at a stop, the engine becomes extremely hot and the knock-sensor might be having fits. When I say a drop of 10-15% in power due to heatsoak, I'm talking about performance off the line. As the car goes faster, the engine begins to cool back down. On the highway, the engine is relatively cool, but the hot and humid air still sucks out some performance due to the heat and less O2 rich air.

Yes, the GLE automatics have a electronically controlled engine mount (the front one only). It only seems to work at low rpms to reduce the driveline vibration on an auto at a stop.


Dave

suds1

That goes to show you how much my Nissan dealer knows. They replaced my non-existent "electronic engine-mounts" to try and remedy the problem.

I haven't had any vibration issues and the car seems to perform pretty well at highway speeds. Of course its also been hot the entire time I've owned the car so I don't really have anything to compare it to.

soundmike

iTrader: (24)

If it's any consolation to you, i can tell you this. When the winter/cold season starts you'll find out first hand why you got the Max in the first place

Dave B

Ain't that the truth. I just got my variable intake installed and my car is a completely different animal now and it's still in the upper 80s-90s during the day. I can't wait till October and temps are in the 60s and below. The power is going to be wicked.


Dave

ThomBlaze2k2SE

That...I'm sure is the silver lining in this cloud. I got my Max at the end of May so I've had mostly hot temps with her. I made a road trip to MI during the July 4 weekend and we got back to DC Metro area that Sunday night. Don't know if anyone remembers but the temps were quite cool by about 8:30pm and unfortunately <grin> the performance was quite addicting. I guess everyone felt the same way. I could tell from the way everyone was driving from PT Cruisers to old Mustangs. This fall season is gonna nice!!

egham45

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I wouldn't use aluminum you need something soft or it will be too rough, if you cut a short piece of heater hose and squeeze it together use some kind of lubricant like WD40, cut the heater hose about 1 and half inches, you should be able to push it in that gap

saxdogg

Whoops, I didn't read back far enough and missed daveb's first post. Those explanations do make some sense...but to me it's not a feeling of DiMINISHED power until I speed up but more like no power for like half a second and then BOOM, there it is, pulling hard. I'm sorry guys, I still like the drive-by-wire excuse...perhaps an ECU reprogramming for hot weather settings? It seems my rough idle (stopped in drive) is there when it's hot as hell...smoother when cooler. What do you think DaveB? BTW...dave, check your pm///


ARFF

Larry

I cut a piece of .480 diameter x 2 1/4" long steel rod, sprayed it with WD 40 and stuck it in the mount. It isn't rough idling or running but it did not stop the popping or jerking from zero either. I placed it right above the front portion of the C ring protruding from the mount. Maybe this is the wrong place but about the same place that the 5/8" heater hose can go and only place readily accessible.

Back to the drawing board for me. The dealer was no help at all!

MiniRX7

Holy $hit

You just described the problems i am having perfectly.. IT makes me hate my car more and more!!

ED

bootone

you know, I have been dealing with this situation for a while on my 2k2se auto. I believe there is a situation with the so called heat soaking. I feel the problem like everyone else from a dead stop. On cooler days the throttle is touchy and I like this. But now I have noticed that on the hot days intermittantly if I have on the a/c
it runs a little better

could this be because the fans are disipating the heat ?

soundmike

iTrader: (24)

It's because of the heat, plain and simple. I don't know about you guys, but i think the heat soak issue is getting a teeny bit over our heads.

I've had my old Civic suffer the same problem, and given the power that thing can put out just imagine how much worse it is when summer-time comes.

2K2SE

Now that the temps are back up in the 90s I have the hesitation from start again. New question: Does anyone who had the Automagic TSB for hesitation (NTB 03-023) done have the hesitation from start problem? I can't get my dealer to apply the TSB but I want to know if it has helped with this particular problem.

Thanks.

Jaws

Not an auto, but the hesistation TSB did seem to fix the problem off the line. Good luck.

FlatoutF1

I had NTB 03-023 completed and still experience a delay when accelerating from a stop.

2K2SE

Thanks, FlatoutF1. I was afraid of that.

maxcosity

I don't have the TSB (they checked my VIN) and I still notice it is somewhat weak right off the line. I have a 6-speed. If I punch it off the line, it is awesome. If I don't, it is really weak all through 1st gear. It's really odd.