Last post on Mar 16, 2010 at 3:20 PM
You are in the Toyota Camry
What is this discussion about?
Toyota Camry, Transmission, Sedan
#1 of 27 2010 Toyota Camry harsh deceleration from 31 MPH to 19 MPH?
Mar 08, 2010 (11:15 am)
I have the same issue as nathan118 with my 2010 Camry. When I take my foot off the gas pedal. I feel a noticeable engine/transmission drag at about 31MPH to 19MPH. Is this normal for all Camry? Anyway to "fix" this without shifting to Neutral? Does shifting to Neutral often may shorten the life of the transmission?
Doesn't sounds like a good design to get more mileage but may prolong the brake pad a bit.
Other than that, the car is very good. I don't really care about the gas pedal issue, especially I know the 2010 Camry will (or may already) have brake over-ride.
#2 of 27 eng/trans drag
Mar 09, 2010 (10:33 am)
I experienced the same thing on my 2010 4cyl le...also noticed a similiar "drag" on my wife''s honda..I think it may be a characteristic of these new 5/6 speed automatics..the 4 spd automatics most of us used to drive didn't have this quirk..there may be a fix but I got used to it and I think it will help reduce brake wear..
#3 of 27 Re: eng/trans drag [petras2]
Mar 09, 2010 (10:38 am)
It is not just 5/6 speed automatics, owners of 4 speed automatics have also noticed the drag.
#4 of 27 Re: eng/trans drag [petras2]
Mar 09, 2010 (10:40 am)
The "drag" is the result of the more recent adoption of an "extended" coastdown fuel-cut technique used to extend FE. The transaxle is downshifted sequentually as speed declines so that the fuel starved engine doesn't stall. Made even more noticeable with the new 6(9) speed transaxles and also since at lower speeds the transaxle goes into an upshift mode to alleviate the potential danger of FWD or F/awd engine compression braking should the roadbed be slippery.
#5 of 27 Re: eng/trans drag [wwest]
Mar 10, 2010 (8:15 am)
I am confused. If the purpose is to extend FE, then why I don't feel any drag when I shift to Neutral? The drag is like engine braking from the down shift.
Neutral doesn't use any more gas than Drive, right? And the car and goes further and faster, so better FE, right? The drag is almost like a light brake is applied, similar to what many drivers do to prepare a complete stop in front of traffic light or stop sign.
#6 of 27 Re: eng/trans drag 
Mar 10, 2010 (8:51 am)
"..The drag is like engine braking from the downshift.."
Because that is EXACTLY what it is.
With the fuel cut off the wheels are "driving" the engine, sort of like a trucks "jake brake". Should you put the transmission in neutral the control ECU will instantly "refuel" the engine otherwise it would stall.
So, the choice, during coastdown, is keep the non-fueled engine running via roadway traction, or put the car into neutral and FUEL the engine.
#7 of 27 Re: eng/trans drag [wwest]
Mar 10, 2010 (9:00 am)
So when the wheels are driving the engine, no fuel is applied?
If I put the car in neutral while coastdown, will I save more fuel?
Will this practice (shift to N on coastdown) cost any more wear to the transmission?
#8 of 27 Look Ma no brakes
Mar 10, 2010 (5:02 pm)
Prisus any one, Monday in CA a highway runaway and just today in NY there was a runaway out of the guys driveway, who is it that said get in touch with reality Toyota is still a great car, I'm sure it was Consumer (in Toyotas pocket)Reports that made the assement. Here is reality check I would recomend people to shy away somewhat from Toyota for a few years.
Also, who could feel safe buying a used Toyota, I'd be thinking was this one of the cars that they didn't fix?
#9 of 27 Re: Look Ma no brakes [packer3]
Mar 10, 2010 (5:12 pm)
Why hijack my thread?
I don't care about yesterday Prius report, I think it is a good opportunity for Toyota and NHTSA to prove the root cause one way or the other. As long as there is brake over-ride, I don't mind another Toyota. Remember, Toyota is not alone in reported unattended acceleration incidents, and unattended acceleration is only one problem. What's important is the overall death toll.
What pissed me off is how Toyota handled the problem from late 2009 to January. Big mistake imo, and Toyota is now paying for it.
#10 of 27 Re: eng/trans drag 
Mar 10, 2010 (7:04 pm)
Just leave the car in drive and let it slow down. Don't shift into neutral.