700r4 slips when fluid is a pint low

transmission was going into gear very lightly and slipping in all gears. Added a quart of fluid and it works pisser.

Seems like it needs to be a pint to quart overfull to work right.

You think this might be something simple like a cracked filter pick up tube? or bad filter pick up tube gasket?

I know guys will give me shit over this, but I have been somewhat over filling my auto trannies for a long time, figger they will spit out the top vent anything they really don't like.....never been a issue....

I don't do it on the wife's Escort though, just keep it slightly over full...

I don't recall having my 700 be all that sensitive, never a issue for me....

:beer:

When i had the 700r4 on the vette done 7 years ago, the dipstick showed about an inch over full. I asked them about it and they said it was safer to run overfull than under.

I've never seen one as sensitive to fluid level as the one in the suburban though.

turtlevette said:

When i had the 700r4 on the vette done 7 years ago, the dipstick showed about an inch over full. I asked them about it and they said it was safer to run overfull than under.

I've never seen one as sensitive to fluid level as the one in the suburban though.

Click to expand...

I treated my 700 the same as all the others, slight over fill....if I want crazy I had a well oiled differential....I never had any oiling/leaking problem with the 700 my issues were far different....

I would keep it a pint high anyway...see what happens...can't hurt...

:beer:

i think i found one potential problem below. I have heard of this years ago.


Pay Attention!
Often a DIY or quicky lube person will service an automatic transmission of the 700r4 family of transmissions. When they drop the tranny pan and pull the filter out the filter sealing sleeve will stay inide the pump. Does this person pull the sleeve out or remove the new sleeve off of the new filter??
NO!
The results is the new filter is pushed lower with 2 sleeves and when the pan is tightened up the tube can crack or deform resulting in the pump sucking air.

Here is a photo of a 700/4L60 pump with 2 sleeves in it. Remove both sleeves carefully to avoid damage to the aluminum.

Here is a pump with one sleeve inside of it. Carefully remove this to avoid damage to the aluminum where the sleeve seals !

thats interesting and i do seem to recall that their was something different about the filter and sleeve on my 700r4 when i first went to replace it.....the pictures are blocked here at work but i do want to see them.

All of the quicky lube places around here won't drop the pan and change the fluid/filter. They disconnect the cooling lines to radiator and re-filter your old fluid! They charge about $80 for this :bonkers:

BBShark said:

All of the quicky lube places around here won't drop the pan and change the fluid/filter. They disconnect the cooling lines to radiator and re-filter your old fluid! They charge about $80 for this :bonkers:

Click to expand...

Wellllll it IS the only way to change the converter fluid, as converters don't have drain plugs unless high buck aftermarket....

can't win....

I know Jim Beatty at ATI, years ago, used to have a way to do that on the car even...but damned if I know how in hell he ever got the metal shavings out of the converter, :bonkers::flash:

BBShark said:

All of the quicky lube places around here won't drop the pan and change the fluid/filter. They disconnect the cooling lines to radiator and re-filter your old fluid! They charge about $80 for this :bonkers:

Click to expand...

Jiffy lube does that. Seems stupid to flush the system with all new fluid and leave all that crap in the fliter and the bottom of the pan. I've decided to have a transmission shop do it. They may be able to check a few things while they're in there.

I do go to Jiffy Lube for an engine oil change. I usually tell them to stay out of my car and give me just oil. The other day the dude gets in the passenger seat of my vette and starts rifling through my stuff. I didn't expect him to do that and about shit because he was seconds from finding kinky pictures of my wife. He was looking for an owners manual because they didn't know what year it was. I really really hate people fucking with my stuff.

BBShark said:

All of the quicky lube places around here won't drop the pan and change the fluid/filter. They disconnect the cooling lines to radiator and re-filter your old fluid! They charge about $80 for this :bonkers:

Click to expand...

That's nuts. The fluid breaks down. Re-filtered is the same old crap.:bullshit:

GM changed the design of the filter seal a while back. Early ones just had an O-ring in the pump that the tube went into. They changed and went to that sleeve. Lots of problems early in the switch with double O-rings, sleeve on top of an O-ring, Filter designed for a sleeve and had an O-ring, you name it, it got screwed up. I've seen filters cracked and sucking air too. That may be part of the cause of the pint low thing. If the crimp around the filter is funky or the tube is cracked it'll suck air.

I'm going to take it to a transmission shop to get the fluid changed and have them check this. I suppose bad things happen if an o-ring or sleeve gets sucked up into the pump.

How do you feel about the B&M deep pan? It comes with an adapter to extend the pump pickup hole down lower.

I do go to Jiffy Lube for an engine oil change. I usually tell them to stay out of my car and give me just oil. The other day the dude gets in the passenger seat of my vette and starts rifling through my stuff. I didn't expect him to do that and about shit because he was seconds from finding kinky pictures of my wife. He was looking for an owners manual because they didn't know what year it was. I really really hate people fucking with my stuff.[/QUOTE]

Turtle, lets get back to the kinky pics of your wife - why doncha post em for an honest opinion from the boys? :yahoo: