I had a problem of a clogged trans filter a few months back and changing fluid/filter fixed it BUT before that for months and after fluid/filter change the car would pull to the left hard while accelerating when shifting between 3rd and 4th. The left jerk was not at the shift point but before it like clutch slipped and then grabbed and then shifted to next gear. No other problems in any other gears or shifting other than this. If I do hammer it it shifts hard so clutches seem fine. All new struts and front end bushings and mounts.

Also when going 60 mpg around a sweeping right curve the car wants to pull to the left like torque steer and its becoming downright dangerous if your not expecting it to handle bad, BUT it doesnt do it going around a sweeping left curve. Its like one wheel is trying to spin at wrong speed on curves and that one point before the shift while going straight (it will actually pull me over to next lane if i take hand off steering wheel).

I did get a CEL of PO700 and P0740 while going up some mouintain roads last weekend so im thinking iot got hot but car drove fine and light went off 4 days later.

The shift solenoid was replaced with no difference. Im thinking maybe its one or both speed sensors even though no code for that has come up? Other would be trans shot and converter or clutches messed up but I would think it wouldnt be driveable if it was that bad or would do it all the time on both L/R curves.

Thanks

 

Is any wiring frayed or grounding out?

 

No I dont see any and I was over, under and in that engine compartment all morning long.
I have inspected/replaced all suspension components and struts and all is well however when I had driver side wheel off the ground and yanked tire forward and reverse while in park I was amazed at how much the engine/trans was rocking back and forth. All mounts have been replaced but im thinking no way in heck is it suppose to move that much just when rotating tire back and forth hard or is it? It was like the exhaust pipe/cat should have at least been preventing it from rocking so much. How much is the eng/trans suppose to rock back and forth if you grab the tire and jerk it back and forth? I know the mounts really have room to rock the way they are made and why guys go to solid ones.

I took another drive and went 3/4" throttle off a stop and first gear was straight no pull to the left, shifted to second and no pull to the left, shifted to 4rd and no pull to the left and then probably 2-3 seconds before going into 4th it veered the left. Doesnt matter if I leave it in drive or manually shifted its the same result. Seems to be something in that upper 3rd area no matter whatthe rpm when it veers to toe left as if the left wheel all the sudden grabs harder or spins faster than the other.

I thought it was a alignment issue but that would happen all the time if so at all speeds/rpms. Its got to be some internal electrical problem making that left wheel/cv axle spinn faster when it should not.

This is really driving me crazy.

 

I don't recall they should be moving at all; they are (should be) mounted in place. You don't want them moving.

 

Everything is mounted the way it should be, all new yet it moves back and forth almost like there is no exhaust manifold attached allowing it to rock back and forth. Its alomts liek its missing some mid rear mount which I know it doesnt have.

Next time you jack your car up rotate your tire forwards and reverse in park pretty hard for me and see how much eng/trans rotation you actually get.

Thanks

 

it's like I've read this before. someone else a couple months ago had the same issue with a wicked pull only when in 4th gear. makes no sense because there is no load on the drive line in 4th meaning no gear multiplication which will cause torque steer.

a failed output sensor = no shift and no speedo
failed input sensor = no shift but speedo will work

 

Ok that rules out the sensors...

That might have been me a couple months ago in a different thread when tranny quit working. The left pull is not in 4th tho unless im around 60 mph steady speed going around a right curve. Most of the time ive now noticed it pulls to the left some in each gear butthe most jerk is right before/at the 3/4 shift point. I swear its like both wheels are not turning the same speed while driving in each gear going straight in any gear usually or in 4th around a curve.

Anyway another thing I noticed I need to check out.
I always jack up to remove wheels with jack under rear most control arm bolt head. Today tho I jacked behind it on frame area I noticed the rear control arm bolt that goes up into the frame area really goes crooked almost like its got a ball joint on other side of the bolt. With weight off it the bushing kinda separates from the rest of the assy there with the bolt head some and allows the whole bolt/bushing assy to go crooked as wheel/arm with no weight on it goes way negative camber. Even so shouldnt this bolt/bushing assy still be flat and solid against frame area with no weight on it??
When weight is on car of course the bolt is straight and assy flat against frame area so im not sure why its doing that. I had a shop replace them so im hoping they didnt screw up those bolts where they thread up in there.

 

torn rear control arm bushing?

 

Hmmmm both sides are new within 2K miles so I dont think so but it sure was weird looking with weight off it how it pulled down and crooked some with whole assy not being seated flat against frame. I wish I was the one who replaced them so I know what they looked like while installing them and tightening them down.

 

Aren't you in Northern Cali? If you are (can't remember who else was up here), we could meet up and I could take a peek at it. I know what everything is supposed to look like under there.