Nashua_Night_Hawk

It could be just me, but for the first time I noticed, when I brake while just clearing and going down a small hill, the rpm will suddenly jump by 300-500 rpm and then drop back..

Anyone noticed this? I will keep an eye on this and watch it....

Thanks.

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Black, Ebony, 3.2 CL Type-S.
- Acura NAV.
- 3M clear bra (full front bumper, and side mirros)
- Wheels locks
- Mooonroof visor
- Splash guards
- Winter mats
- Trunk liner
- Acura Spoiler
- Valentine V1 Radar Locator
- HELMS Service Manual
- PIAA 19169 road lamps
- 03/19/01: Injen Polished CAI

Wyle E. Coyote

Yep, mine does it too. The car is downshifting earlier so you don't have to brake harder. Mine will normally only do this on a downhill slope when over 30 mph.

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2001 Acura 3.2CL Type-S
Satin Silver/Ebony
No Navi
No Badges

Competch springs/35% tint/Wheel locks/Splash guards/PIAA 19169 bulbs/K&N 33-2178 air filter/Mobil-1 5W-30 oil & filter/Shine by Meguiar's/One scratched rim

Mercury

They call it GRADE LOGIC. It's a real feature not just a fluke.

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Silver S
The Silver S is repaired!
Great to have back!

frederix

Mercury is correct. Our transmissions have grade logic so they will hold a lower gear going up a hill and downshift going down a hill.

4pumpedCL

If you're in the range of 140 mph and do this you'll get a similar effect. But that's due to the car catching a little air over the top of the hill.

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2001 CL-P, new project undergoing complete reconstruction. As of now: Custom CAI fabricated by SRD, Polarg M6 bulbs, 4 ProHopper Chrome hydraulic pumps with whammy tanks, 4 ProHopper dumps, 4 Optima marine deep-cycle batteries, 4 switches. Much much more to come...

1997 Accord coupe EX-L. Chrome suspension, Chrome motor, every bolt-on imaginable. One pump, 8 dump hydraulics with accumulators. Leather, Billet grills, 18" Neeper Shadows...etc..etc http://www.artofnoize.com/Cars/aaron.htm

1990 Toyota standard cab. Bodydropped 3". 17" KMC Nemesis', extensive suspension work. 4 wheel airbags.

JZ

Oh man--I almost forgot about grade logic!! Poor grade logic doesn't get any play here at all.

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Black/black CLS
Comptech headers, springs, swaybars
Koni yellows
PIAA 19169 road lamps
Solaris Hi beams
Potenza RE730 225/45/17
Red AEM CAI
35% mirror tint next

kensteele

And with my type of driving, I seem to be experiencing this quite a bit. I didn't think it would happen on relatively flat ground, but even on small slopes/inclines, it feels like someone else is applying the brakes for me.

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* 2001 Acura CL Type S * Blk/Blk * Navigator * Spoiler * Moonroof Visor * V1 *
* Since 3/31/2000 *
* Road Warrior *

scalbert

Torque converter clutch unlocking is another probability. Especially is it does happen on relatively flat ground.