Reluctant upshift to 3rd while cold (auto trans) - Toyota Yaris Forums

foober · 08-30-2006, 08:51 PM

Quote:

Originally Posted by Chris07LB

This car does not need to "idle" to warm up, for any amount of time.. Toyota suggests driving slower to gradually get the engine up to operating temp., before driving high speeds.

Also, no amount of idling will warm up your transmission fluid (automatic), it needs to go thru the gears, to get the oil circulating/warming up.. so once again, driving a little slower/cautious the first few minutes is better then sitting in the garage warming up... plus your just wasting gas.

All info above can be found in the Yaris shop manual.

Thanks for that info. about the transmission. I'll still idle my car for a few minutes till the engines warmed up though before I drive it. I kind of want it for the next 200,000 miles.

60 Somethings · 11-30-2006, 02:35 PM

There was a noticable switch in the recommendation for warming-up an engine from sitting there for 3-4 minutes to just drive-off gently, something like 30 yrs ago.

We drive-off gently rather than sitting there and warming-up. In all but one case (a 1986 Trooper - rebuilt around 160K miles), our engine has outlasted the rest of the vehicle.

Our HB stick-shift also revs up to around 1,500 RPM when started cold, per the ScanGauge. We have about a 4 block drive to the 1st main intersection and the engine usually gets to (or close to) 130 degrees - where the cool engine light shuts off. However, "normal operating temp" appears to be in the 184-190 degree range.

Greg66 · 12-01-2006, 05:13 AM

Most modern cars are designed to drive right away without idle time. In some parts of our world it is actually illegal, allthough not often enforced, to idle your car as to not contribute to our ever growing SMOG issues. I think you will discover in the very near future that these laws will come into effect here also.

Lowfront · 12-01-2006, 07:23 AM

ok but I got a remote starter. So you guys are seriously saying that its bad for the engine to let it warm up for 5 min?...

07WYarisRS · 12-01-2006, 09:22 AM

Quote:

Originally Posted by Lowfront

ok but I got a remote starter. So you guys are seriously saying that its bad for the engine to let it warm up for 5 min?...

No it's not bad for and engine to warm up, but 5 minutes is way overkill.

Pavel Olavich · 09-12-2007, 11:11 PM

Quote:

Originally Posted by foober

Thanks for that info. about the transmission. I'll still idle my car for a few minutes till the engines warmed up though before I drive it. I kind of want it for the next 200,000 miles.

Letting it idle to warm it up will do NOTHING to extend the life of the engine....better to start it, then start driving it, but slow and easy until the cold temp light goes off, then gradually get more aggressive with your driving.

The late shifting of the auto tranny while driving happens until the water temperature gets to 130F, then the car will shift as normal...this is the car's way of warming up while yuo drive....don't waste gas with idleing....you only fool yourself when you do this, and the car has no benefit. None, over just driving it immediately, slowly at first.

Jimb442 · 05-02-2010, 02:25 PM

here's my 2cents worth. I too read early on that the transmission will not shift to 4th until the engine reaches a temp set by the manufacturer ie. the cold light must be out. This is reasonable and allows you to reach speeds of 80km in 3rd without reving too high which is good enough for city driving at least.

Not shifting to 3rd however I believe is an issue. The car is not designed to do this and I've never owned a car that holds onto a gear like this. Even a cold start in relatively mild temps still cause the shift issue. Another reason I believe it's a problem and not just a normal function of any cold auto trans like some on here are stating is mine seems to be getting worse plus and more importantly, IT DIDN'T ALWAYS DO IT! I took mine in for the issue before the warranty ran out and of course Toyota could find nothing wrong as I kind of expected. I'm glad I took it in at least during the warranty period and it's on the dealers books for that so when I take it in again, hopefully it will still be covered. If I knew that it would never amount to anything more than a 1 minute delay in shifting to 3rd then I would probably just leave it alone but I'm not convinced that's all it will be. Suit yourself, but I'm getting it checked out and obviously there are a lot of other owners (but I bet not 100%) that are having the same problem so it can't be a normal function of this car.

Now after all this, I tried reading through some of the posts, did anybody actually take his/her yaris in and successfully fix this problem. Sorry it that's already been covered and I missed it.

11-30-2006, 02:35 PM	#2
60 Somethings Old Folks View User's Garage Drives: 2007 Yaris LB, 2006 4Runner V8 Join Date: May 2006 Location: Vancouver, USA Posts: 222	There was a noticable switch in the recommendation for warming-up an engine from sitting there for 3-4 minutes to just drive-off gently, something like 30 yrs ago. We drive-off gently rather than sitting there and warming-up. In all but one case (a 1986 Trooper - rebuilt around 160K miles), our engine has outlasted the rest of the vehicle. Our HB stick-shift also revs up to around 1,500 RPM when started cold, per the ScanGauge. We have about a 4 block drive to the 1st main intersection and the engine usually gets to (or close to) 130 degrees - where the cool engine light shuts off. However, "normal operating temp" appears to be in the 184-190 degree range. __________________ We are the proud owners YARI - He's a loaded Silver LB with ATTITUDE!

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12-01-2006, 05:13 AM	#3
Greg66 New Guy View User's Garage Drives: 2006 Toyota Yaris 2dr hatch Join Date: Jun 2006 Location: Ontario, Canada Posts: 12	Most modern cars are designed to drive right away without idle time. In some parts of our world it is actually illegal, allthough not often enforced, to idle your car as to not contribute to our ever growing SMOG issues. I think you will discover in the very near future that these laws will come into effect here also.

12-01-2006, 07:23 AM	#4
Lowfront Drives: Yaris Sedan Join Date: Aug 2006 Location: Worcester MA Posts: 119	ok but I got a remote starter. So you guys are seriously saying that its bad for the engine to let it warm up for 5 min?...

05-02-2010, 02:25 PM	#7
Jimb442 I've made a post! Drives: 07 Yaris 4 dr hatch Join Date: Apr 2009 Location: Winnipeg Posts: 1	here's my 2cents worth. I too read early on that the transmission will not shift to 4th until the engine reaches a temp set by the manufacturer ie. the cold light must be out. This is reasonable and allows you to reach speeds of 80km in 3rd without reving too high which is good enough for city driving at least. Not shifting to 3rd however I believe is an issue. The car is not designed to do this and I've never owned a car that holds onto a gear like this. Even a cold start in relatively mild temps still cause the shift issue. Another reason I believe it's a problem and not just a normal function of any cold auto trans like some on here are stating is mine seems to be getting worse plus and more importantly, IT DIDN'T ALWAYS DO IT! I took mine in for the issue before the warranty ran out and of course Toyota could find nothing wrong as I kind of expected. I'm glad I took it in at least during the warranty period and it's on the dealers books for that so when I take it in again, hopefully it will still be covered. If I knew that it would never amount to anything more than a 1 minute delay in shifting to 3rd then I would probably just leave it alone but I'm not convinced that's all it will be. Suit yourself, but I'm getting it checked out and obviously there are a lot of other owners (but I bet not 100%) that are having the same problem so it can't be a normal function of this car. Now after all this, I tried reading through some of the posts, did anybody actually take his/her yaris in and successfully fix this problem. Sorry it that's already been covered and I missed it.