Installed torque converter, now car wont move - LS1TECH - Camaro and Firebird Forum Discussion



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Installed torque converter, now car wont move

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Old 06-10-2017, 10:11 PM   #1
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Default Installed torque converter, now car wont move

Hey guys,

Just finished up getting the car all back together after a cc503 cam, new valve-train, and a Yank ss3600 stall. Got the motor all running good finally and everything buttoned up, moved the cars out of the driveway but when I went to back the car out of the driveway . . . it wouldnt move. when i revved up the motor to like 3500 rpms it would kind of start to engage and roll the car. couldnt get it to budge in drive.

I didnt really feel it engage when i shifted into drive or reverse (automatic trans, 4 speed) so the first thing I checked was the shifter linkgage. I was able to confirm that it was moving correcting when I shifted through the gears. When I installed the torque converter I had the whole motor and trans out of the car, so it was a breeze putting everything together. I made sure to put fluid in the converter before putting it on, felt the three clicks, and it snugged up to the flywheel nicely to bolt in.

Knowing the converter is all the way in and the linkage is connected, what else could it be?
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Old 06-10-2017, 11:53 PM   #2
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How much tranny fluid is showing on the stick?
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Old 06-11-2017, 10:54 AM   #3
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How much tranny fluid is showing on the stick?
Check it. You have to add 2-3 quart for a converter change.
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Old 06-11-2017, 03:49 PM   #4
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Thanks guys, you were definitely right, it was very low on fluid. I filled the converter during install and filled the transmission before it put it back in, so I thought it was good. added several more quarts now and I think I am good, car is driving again!!
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Old 06-11-2017, 04:15 PM   #5
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4l60e's are a bit finicky with the fluid level so be accurate with it and fill it on the high side. About a half quart over the full line to prevent fluid starvation on the 2-3 shift.
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Old 06-12-2017, 08:10 PM   #6
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So, how does that converter feel?
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Old 06-15-2017, 07:07 AM   #7
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4l60e's are a bit finicky with the fluid level so be accurate with it and fill it on the high side. About a half quart over the full line to prevent fluid starvation on the 2-3 shift.
Yeah I dont want to totally overfill it so I keep adding a little bit, but then you have to drive the car around and get it warm and all that stuff and then it will still read low, then do it all over again. I will keep filling it until I get a consistent reading though.

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So, how does that converter feel?
The converter feels good, definitely different, but I donít think I feel the full potential of it yet. I think I am still a little low on fluid so itís a little non responsive at low RPMís, like I said above, once I get it fully filled then it should feel better. The other thing is that I have the PCM tuned for 3.73 gears and have not had those installed yet, so while you can feel the pull of the converter, it doesnít have the right shift points. Once I get those two things figured out I should really be happy!
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Old 06-15-2017, 01:53 PM   #8
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Yeah, you will have jacked up shift points for sure.
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Old 06-19-2017, 07:49 AM   #9
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Yeah, you will have jacked up shift points for sure.
Yeah I can definitely feel it. I will have those installed soon. I drove it yesterday then checked the trans fluid and it was full this time, so I think I finally have that done, but I am still a little surprised at how it feels at cruising speeds, if I am driving at 35 mph and want to speed up to 37 mph, I have to really put my foot in it to get it to move. Same thing when backing out of my garage, it will roll once I put it in gear, but to get over the bump of the transition to my driveway, I really have to give it some gas. Not sure how much of this is normal as I have never driven a car with that high of a stall (yank ss3600) and I also dont know how much that will change with the new gears.
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Old 06-19-2017, 08:05 AM   #10
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I can't comment on the Yank that you have specifically, but 3,600 is pretty high so what you are describing sounds normal.
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Old 06-19-2017, 08:10 AM   #11
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I can't comment on the Yank that you have specifically, but 3,600 is pretty high so what you are describing sounds normal.
Gotcha, I am figuring all this stuff out, slowly but surely!
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Old 06-19-2017, 08:53 AM   #12
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The SS 3600 is a great converter. I've had mine 13+ years. I'd recommend getting those gears installed asap and then have the car dyno tuned.
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Old 06-19-2017, 11:57 AM   #13
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My friend that you are learning on the Fly.

Once you get used to the Sweet Spot of that converter you'll drive like normal
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