5th & 6th Generation (2002-2006 & 2007-2011)Toyota Camry Discussion for years: 2002-2006 & 2007-2011
Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.
As stated in a recent post , I just had my rotors and drums turned down .
OK , up until the brake work , when going down a looooong hill and when just touching the brake pedal the engine/tranny would downshift to sense you were going down the hill and the compression would help slow ya down. From what I understand this is a characteristic of ALL Camry's ? Kinda pain sometimes .....when ya just wanted to slow down just a little , it would slow you down too much and you just wanted to coast at a lower RPM......understand what I'm trying to say? I mean the Camry didn't coast like a " normal " car going down a hill after applying the brakes.
But since I had this brake work done.....coming home and going up / down the same long hills , this characteristic is now GONE !!!!!!!!
I can now coast like a normal car with out the car holding itself back even after applying the brakes slightly......I'm amazed that having the brake work done would affect the downshifting.
SOOOooo is this a good thing or a bad thing ?
Any one else ever have this happen ????
The 2005 4cyl auto is giving me almost 36 mpg the way it was gong up / down the hills of NW PA....I look for my gas mileage to increase a bit now that I can coast down the hills now.
Is this normal ?
Thaks.....BOB
Maybe the ECM was reset, maybe your car's adaptive programming has come into play. It's really hard to say, but I know for certain that it has nothing to do with the brakes.
You're fuel mileage will probably not be affected either. When coasting there isn't any load on the engine and the ECM will cut the fuel regardless of the RPM's.
On the GEN6, The ECT ECU tries to estimate the road conditions and the drivers intention on uphill, downhills and coast downshift by taking inputs from the throttle opening angle, vehicle speed, engine speed and brake signal sensors to control the transmission shift pattern.
I don't know if the Gen5/5.5's were as sophisticated.
My 04 Camry does downshift when going down a long hill with the brakes on. But the hills here are just hills, not like the mountians in PA so it doesn't happen that often.
Called the dealer....service dude said he don't know why this is happening or why it even happened. Told me to bring it back in....not so easy to do. Guess I'll run it like this.....better this way than giving it gas going down a hill lol.
BOB
I went down a hill and my car didn't decel, it just coasted. Then on the same hill with the cruise on the car decelled on it's own to maintain my speed. I'm guessing that's what you are experiencing.
i have had mine drop to 4th then 3rd on a steep hill doing abou 45mph.
easy fix slap the shifter from d to 4 then back to d
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I look for my gas mileage to increase a bit now that I can coast down the hills now.
Um.. Coasting VS. Engine downshifting has no effect on fuel, higher rpm when downshifting doesn't raise fuel input its the momentum of the car pushing the RPMs up and since the car is essentially turning the engine thas what is slowing it down.
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1990 Camry LE V6 25th Anniversary Edition
DONE:Sony Xplod 800W Amp(XM-1252GTR) w/ Dual Kicker Subs, Alpine CDE-102 Deck, New Eliminator Battery, Keyless Entry
TO DO:Intake adapter, fix wheel well rust
*SOLD*2007 Camry I4 SE Alpine White http://www.cardomain.com/ride/2571595
Um.. Coasting VS. Engine downshifting has no effect on fuel, higher rpm when downshifting doesn't raise fuel input its the momentum of the car pushing the RPMs up and since the car is essentially turning the engine thas what is slowing it down.
So if the engine is running at 1700 RPM's when coasting as opposed to when I shift the car in neutral the engine runs at 700 RPM's, I'm using the same amount of fuel even though the engine is running 1000 RPM's higher? How does that work?
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