Transmission Fluid change
#11
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Mission accomplished. No problems except now 2 days and 45 miles later I get in the car and put it in D and step o n the gas and damn the engine revs and I go nowhere. Same for ALL gears. I pulled the vacuum line off the transmission modulator and all gears work now albeit with hard shifts. I just spent 2 hr * here and cannot find a conclusive diagnosis. Can I and how do I replace the modulator if y all think that would help?
#12
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That doesn't sound good...
When you unplug the Modulator, the Pump pressure is then at Max Pressure..
The car went right into gear when you did this?
And have you checked the fluid again to ensure you are full hot?
It may be worth the $20 for an adjustable Modulator to see if that solves the problem..
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When you unplug the Modulator, the Pump pressure is then at Max Pressure..
The car went right into gear when you did this?
And have you checked the fluid again to ensure you are full hot?
It may be worth the $20 for an adjustable Modulator to see if that solves the problem..
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#13
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Originally Posted by Adeianos
Originally Posted by imidazol
I reuse the rubber original gasket. It has metal washers around the bolts to keep from deforming the pan and to conduct heat to the pan.
REmember to refill to the bottom of the dipstick. Then warm the motor and transmission up to expand the fluid. When the fluid is hot from driving, it should come to the full mark on the dipstick. Be careful not to overfill.
REmember to refill to the bottom of the dipstick. Then warm the motor and transmission up to expand the fluid. When the fluid is hot from driving, it should come to the full mark on the dipstick. Be careful not to overfill.
When cold the fluid from the upper compartment drains into the lower portion of the transmission causing the fluid to be very high. On most transmissions a cold, anecdotal, check has fluid at the down * curve on the trans stick. When the trans fluid reaches a certain temperature (110 def. F.) that thermal drain valve closes off and the transmission reaches an equilibrium on the fluid in the upper vs. sump areas. That'* wh the transmission needs to be fully warmed up before finalizing the fluid level on the dipstick to the crosshatched area and the full marking.
#14
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Re: Transmission Fluid change
Originally Posted by SPOILEDRED94
if its hot the fluid should drain more readily. Hmm? Also how long before I rechange it to get the rest out?
That left 45% of the old fluid in there. I drove for several thousand miles to allow the new fluid to pick up anything it would clean and for the filter to catch any larger particles. Then I drained again and put in new fluid. So I replaced 45% of the remaining old fluid with the second drain and fill. That left 20.25% of the original old fluid in the trans. i drove another 15K or so and drained again. The second drain and fill left 9.1% of the original old fluid there. The ddiffernce between 10% and 20% is trivial in most instances.
I'd go at least a 1000 miles to allow time for the new cleaners to pick up whatever they may clean. I'd also recommend using a synthetic blend (Pennzoil) the second time if available or straight synthetic for the 6-7 quarts it takes. I was told the synthetic is slightly better at cleaning--in case there'* something in the way of deposits that is causing your malfunction.
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Originally Posted by willwren
I suspect the pump in this topic is failing. The adjustable modulator may buy you some time, but will not fix the problem.
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I ll start another topic. I work in retail auto parts and I am half way through a weekend. Any way I do have problems with my trans ANd I could use some help --
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I need to figure out the problem with my transmission. I changed the fluid and filter as stated above. 50 miles later the transmission starts slipping completely. It goes no where in any gear at any RPM. Finally after removing the vacuum line from the transmission modulator I found it will easily shift but with a harsh hard clunk... not good. Also today I found that it will now kick into gear and function normally when I put it in first manually. MY best hope is that a new adjustable modulator will fix it. Worst fear is it needs a new trans. Very lengthy searches here have been very helpful but never conclusive. Kris
#19
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Your Trans is on Borrowed time... I'll just about Promise that one to you... Changing the fluid may have sped up the failure as it may have removed some of the varnish or material that was holding that last little leg.. You would have found the slip sooner or later..
I can't say for certain how long you'll get out of that trans... But I'm thinking a couple of more months possibly...
Get the adjustable modulator, and give it a turn( Clockwise ) install it and see what happens... If its still slipping, then chances are the trans is not happy at all..
It should be fine with a couple of turns and function with a firmer shift.. If at the point you are still slipping, its time to look for a new trans or a rebuild..
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I can't say for certain how long you'll get out of that trans... But I'm thinking a couple of more months possibly...
Get the adjustable modulator, and give it a turn( Clockwise ) install it and see what happens... If its still slipping, then chances are the trans is not happy at all..
It should be fine with a couple of turns and function with a firmer shift.. If at the point you are still slipping, its time to look for a new trans or a rebuild..
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#20
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Somehow its good to know that jrs3800. Like hearing from your doc yep your sick and its gonna cost you a bundle. The worrying is at least over. I was pricing 4T60 e * at work... $1350.00 with my discount! Oddly its exactly 1000 x the price of the modulator. And get this... My parts computer said manual trans available. Oh silly computer.