ok, i know i've been warned about my stock clutch and the smarty output. but have any others experienced this?

after hard acceleration, clutch does not slip, but the pedal will become very heavy after a hard run and then after a pump or 2 returns to regular feel.

also, while on cruise control, the truck will occasionally buck mildly. like a herky jerky motion. is this normal or clutch related. it has only been doing this since using smarty. i was once told it was due to the increased throttle response...??? wondering if this will be smoothed out once the public release of the betas??

thanks,
darren

 

moderator, sorry, this needs to be moved to 3rd gen....

 

where'd it go in 3rd gen? can't find it?????

 

Perhaps the moderators are at Sunday dinner, watching the game or even spending QT with the spousal units...

Patience, Grasshopper

 

Or at work dealing with Football going long and messing up the entire night.
(TV Station)

Moving right now.


phox

 

bump.....really curious to hear any ideas or explanations.

btw, beta 4.4sl does sseem to have better throttle response!

 

Well I'm an auto guy, but it sounds like your clutch is slipping and welding itself together. Do a search and you can read all about it.

It's not really a surprise that your stock clutch is toast is it? If I recall you still wanted to run the beta programs after you found out they have too much power for a stock tranny/clutch. Remember this thread?

 

i'm not worried or surprised that my clutch is toast from the smarty. but i was more curious about the jerkiness from being in cruise control because it only does it when smarty is installed going between 50-60mph, and even before i started getting on it hard with the newly acquired smarty....but the fact that the clutch may be welding itslef together is very intriguing because i've experienced clutch slippage just not clutch weldage......will the clutch pedal eventually just stick to the floor?

also, now that i am running the heavier 22.5's, i am experiencing a much more pronounced turbo-bark. is a larger turbo the cure? and i know that these wheels are also adding to the demise of my clutch.

 

Cruise control "jerkiness" is common, it's due to the improved throttle response. Mine does it also w/ the betas. You should have tried the 4.3, if you haven't, you don't know what a touchy throttle is.

 

thanks tcr! that is what i was trying to confirm. does anyone know if this hiccup can or will be eliminated when the betas go public? or is this one of the characteristics we will have to live with?

 

Not sure about the cruise control issue. Mine has never done that with any of the Smarty programs (and I've been running 4.4 for a while now).

IMO 4.4 has the least touchy throttle...similar to the stock/mild TM programming. If the CC issue was throttle-sensitivity related wouldn't it happen on all trucks running this programming?

 

I should rephrase from "jerkiness" to more of a power boost or surge, when more power is needed in CC mode. It's just more obvious when the throttle is applied when in cruise, you feel it pulling harder to get up to speed. Am I making any sense?

 

Mine does not "jerk" ... and yes... when it comes on it's a little more pronounced... BUT ... I have driven 2,000 miles in 4 days with the CC on 99% of the time and this is only a small issue INFREQUENTLY. My VW will "surge" to get to speed worse in similar situations.

Tip: Get to speed hold steady for a few seconds then set control... SLOWLY lift you foot off once it takes over. Pressing the ACCEL button will cause it to surge some... My MIATA surges the most. Coming over a hill it will coast then surge after is slows down to com back up to the set speed.

I can get 2 MPG better NOT using CC. By letting my MPH go up 3-5 MPH down hill ... and letting it drop 3-5 MPH up hill. Also not surging to get to speed but slowly picking up on the down hill.

 

Are you talking about when you hit the "resume" button and it accelerates back up to speed...or does it do this while just cruising at the set speed? I've heard people talk about it before, but during a recent 2500+ mile drive running 4.4 with CC on it didn't happen once.

If it's due to throttle sensitivity then wouldn't 4.2, 4.3, and Wild make it MUCH worse since they are soooo much more sensitive than 4.4? Even those really touchy programs don't have CC issues on my truck.

 

it mostly happens when going uphill for example....not necessarily a steep hill but enough of an incline to get the computer to adjust. and when it happens, it's kinda jerky like you are feeling the adjusting process, just not smoothly as it should be and then when it finally locks back in it smooths out....am i making any sense? kinda bumpy like an out of phase carrier bearing.

the last time i asked, a few people were having similar issues... could very well have nothing to do with the smarty, but it doesn't do it when smarty is off the truck....