Anyone, just curious that my truck acting normal or not????
Every time I am a decline (down hill) road at about 20-30 speed with no acceleration (no pressure on gas pedal), the RPM jumps to 2k-3k RPM. Look like the trans down shift which I never seen on my previous vehicles.
It's intentional. It is a feature. It should only downshift like that when you tap the brakes. I have a long down hill towards my house, and it's nice not to have to "ride" the brakes.
__________________ [Tundra Bay]
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Radiant Red 2007 Double Cab Limited w/Graphite Leather Interior
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Works with cruise control without touching brakes. Downshifting saves fuel too (and brakes!). I do a lot of starting and stopping around this small town and pick up a few tenths of a MPG by downshifting when slowing. I usually just do a 3 to 2 and then to neutral when stopped. The "live" fuel economy gauge is handy for looking for the optimal fuel saving "pedal habits"
Works with cruise control without touching brakes. Downshifting saves fuel too (and brakes!). I do a lot of starting and stopping around this small town and pick up a few tenths of a MPG by downshifting when slowing. I usually just do a 3 to 2 and then to neutral when stopped. The "live" fuel economy gauge is handy for looking for the optimal fuel saving "pedal habits"
No tryimg to flame you or anything but can you explain how you get better mileage when your engine is turning higher rpm's? I can understand the reduced wear on the brakes but the mileage increase makes no sense.
I don't see how it saves fuel. I'm sure it will save on brakes, but it would be harder on the transmission. I also drive a Mustang that is a manual and I don't downshift to slow unless I really need to. I'd rather pay $100 for brakes than $500 for a new clutch. Keep in mind - the brakes are designed to stop the vehicle by themselves -let them do thier job.
It's a useful feature when towing in hilly areas where you might end up using your brakes so much they begin to fade.
If I'm not mistaken, tow mode will actually increase the frequency that engine braking will occur.
It isn't harder on the transmission than any other gear shift. Any decent truck's transmission is robust enough to handle engine braking - especially when the truck is unloaded.
It saves on fuel since there is a lower load on the crank. Sure it is turning more, but there is less fuel being injected. Put on your inst fuel reading and check it out..
It saves on fuel since there is a lower load on the crank. Sure it is turning more, but there is less fuel being injected. Put on your inst fuel reading and check it out..
Still doesn't make sense to me. What does it matter if there is no load on the engine either way? If you are turning 2000 rpm's with no load how can you not be burning slightly more fuel than if you are turning 1200 rpm's with no load?
I dunno. Hell, it certainly wouldn't be the first time or the last that I am dead wrong about something!
Turning 2000 rpm and not moving the vehicle is easier than 2k rpm and having resistance on it going uphill for instance. Think about it. If you have cruise control on and start going up hill, why does it need to downshift to keep the same speed?
Turning 2000 rpm and not moving the vehicle is easier than 2k rpm and having resistance on it going uphill for instance. Think about it. If you have cruise control on and start going up hill, why does it need to downshift to keep the same speed?
I understand that. We are talking about going downhill though, not uphill.
Trans with down hill condition
Linear Mode
