I just got a new exhaust on my truck and love the sound. I love hearing the exhaust when Im slowing down shifting from D to 2nd to 1st. I was wondering if anybody else does this? And also if it is killing my transmission by downshifting like this.
Thanks guys, SAP

 

if you are doing it manually,, yes you are hurting it

 

Its hurts to engine brake?

 

Leave the over-drive off until 60 or 70 MPH and you'll get enough down shifts and cool sounds to satisfy your needs without screwing up your tranny. Why look for trouble. If you really want to enjoy the sound, Stomp on it and enjoy brother, thats when the real party begins

 

It shouldn't... As long as you dont shock the trans/motor by downshifting at the wrong speed.

 

Can someone please explain? My father has been downshifting automatics for over 30 years, from Old powerglides, to turbo hydramatics, to cadillacs, buicks, fords, pretty much everything but japanese, (WWII generation still hate Jap products I guess) to front wheel drive electronically controlled ones. He hasn't rebuilt a tranny yet. So whats the deal here? Guys will do a neutral drop to impress friends, but downshifting is bad?

 

It won't hurt it per se, the computer prevents it from shifting down at too high an RPM, but it does cause some clutch wear, if you want to do it, go for it, it's not really hurting anything.

G

 

Gee.........I like the exhaust sound sooo much better when accelerating

 

Yeah, but Gator, you gotta slow down/stop sometime --so then you can hear cool noises at both ends of the spectrum!

Dan

 

I was going by my personal experience with my Lexus sedans. my GS400 had F1 type paddle shifters on the wheel, and i loved using them to up and down shift manually. when i questioned them about why they deleted the option on my new GS430. they said the same thing Greg said about the clutches, too many of the V8's coming in with clutch problems. they said the paddle shifts are now only available on the mighty v6's

 

How many of you sit at a trafic light with it in gear? That generates heat and heat is what kills them. If it was a manual tranny would you leave it in gear with your foot on the clutch, of course not. Anyone heard of the book called "drive it forever" It was written in the 70's, but has some interesting techniques.

 

I'm sure the Lexus had plenty of clutch slipping, (after all they brag about smooth imperceptable shifts) but if you look at a 70s muscle car or a modern tranny with a shift kit, There isn't much slipping, when you downshift and it chirps the tires. I think its harder on tires than the tranny.

 

Not to mention when Toyota went from the xS400 series to xS430 series, they GREATLY reduced the ATF flow rate (down to 0.1L/min!) in an effort to squeeze out a few more MPG (less parasitic losses from ATF pump). I'd guess the added heat from the 'paddle jockey' constant hard shifts caused a few more warranty returns (glazing/hot spotting) than they could stomach.

 

When you're setting a light and not moving, the transmission is not being hurt, the inertia is taken up in the converter, not the geartrain, so it's not like setting in gear with the clutch out on a manual at all.

G

 

WE have to slow down