For sometime now my 05 ls has been shifting hard after an hour or so of driving. It seemed to start sometime last year. I am wondering what could be the cause of the hard shifts? Fluid getting to hot? Too much fluid? (FYI car has never had a tranny flush. 55,000miles). Tranny filter clogged up? Just wonder what you guys think.

Thanks

 

Could be a shift solenoid.

But check the fluid anyway and see what's going on with it.

 

I would start with dropping the pan and changing the fluid/ filter. That alone might help things quiet a bit.

Otherwise, I would agree, its probably a shift solenoid.

 

A bad shift solenoid would cause hard shifts all the time, not just when the transmission is hot.

I tend to think a fluid and filter change would go a long way in this case. Upgrade to Dex VI and drop a new filter in it and I bet your problems go away.

How hot is the car running? Is it overheating or close to it?

 

No the car is not overheating any. The closet it gets is the 2nd mark below the halfway mark on the temp gauge.

 

did this ever get handled? also, how do i change a shift solenoid?

 

also, is it possible that remote start could affect the tranny at all?

 

Remote start wont hurt anything. The shift solenoid cant be changed out very easy, and when I say very easy, I mean you need to rebuild the tranny or get a new one. Am I correct? Mine went out, and besides the hard shifts my 3rd gear went out.

 

thanks for that info. just had hard shifts for the first time last night. kinda jerks into the first two gears, so i guess thats gears 2 and 3? i havent got the trany flushed in some time so i hope that will help the situation

 

I put lucas in my 01 Monte 3.4 ls it stopped that jerking but i loss a whole lot of power for two weeks then it went back to jerking so I'll put more lucas on till i get Tranny rebuilding Money BTW HOW much does it cost to rebuild the Tranny so I can abuse and beat up on it again anybody got prices Miami or Ft. Lauderdale especially if your out there let me know what u guys paid