Got my 4l80e swap done, one question...
09-26-2007, 11:45 PM
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Got my 4l80e swap done, one question... It stays in 3rd gear. 
I know thats what the 4l80e does in safe mode. I put a speartech m6 to 4l80e harness in my car. Would not having the ignition switch hooked up right cause this? Where should I put it? Also would not having the right tune cause this? I had a guy put the 4l80e tables in. Everything else is great though.
I know thats what the 4l80e does in safe mode. I put a speartech m6 to 4l80e harness in my car. Would not having the ignition switch hooked up right cause this? Where should I put it? Also would not having the right tune cause this? I had a guy put the 4l80e tables in. Everything else is great though.
09-26-2007, 11:55 PM
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Originally Posted by performabuilt
Check that you have power on both if the pink wires, And yes the ignition power is required
09-27-2007, 12:01 AM
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Originally Posted by performabuilt
hmm tiny wires or the leads you can get at radio shack that have needles that puncture the wie
09-27-2007, 12:06 AM
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4L80E defaults to 2nd gear. If it is in 3rd, you likely have power and possibly a bad 2-3 shift solenoid.
3rd gear is 2-3 sol on, 1-2 sol off.
Could be a bad solenoid, stuck shift valve, sol feed orifice in the seperator plate too big, or and 3rd gear clutches stuck ON internally.
3rd gear is 2-3 sol on, 1-2 sol off.
Could be a bad solenoid, stuck shift valve, sol feed orifice in the seperator plate too big, or and 3rd gear clutches stuck ON internally.
09-27-2007, 12:09 AM
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Originally Posted by jakeshoe
4L80E defaults to 2nd gear. If it is in 3rd, you likely have power and possibly a bad 2-3 shift solenoid.
3rd gear is 2-3 sol on, 1-2 sol off.
Could be a bad solenoid, stuck shift valve, sol feed orifice in the seperator plate too big, or and 3rd gear clutches stuck ON internally.
3rd gear is 2-3 sol on, 1-2 sol off.
Could be a bad solenoid, stuck shift valve, sol feed orifice in the seperator plate too big, or and 3rd gear clutches stuck ON internally.
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09-27-2007, 12:42 AM
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Originally Posted by jakeshoe
Can you manually downshift it?
The 4L60E defaults to third. On a 4L60E, no solenoid power puts you in 3rd. On a 4L80E it puts you in 2nd.
What all has been done to this unit?
The 4L60E defaults to third. On a 4L60E, no solenoid power puts you in 3rd. On a 4L80E it puts you in 2nd.
What all has been done to this unit?
Its been gone through.
transmission speed sensor 1991-on
4L80E transmission 1-2 shift solenoid 1991-on
4L80E transmission 2-3 Shift solenoid 1991-on
4L80E transmission internal wire harness 2004-ON.
Alto Red Eagle forward & direct clutch 1964-on.
Friction, 4L80E high energy intermediate 1997-on
4L80E Heavy Duty front stator bushing
4L80E Rear stator bushing 1991-on
High performance, Kevlar® lined, front band.
4L80E transmission Reverse band.
4L80E transmission intermediate sprag
09-27-2007, 12:50 AM
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Originally Posted by performabuilt
Check that you have power on both if the pink wires, And yes the ignition power is required
09-27-2007, 12:03 PM
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Originally Posted by performabuilt
They may be red in that harness the stock harness is pink , Please look at the wiring diagram supplied with that harness to verify.
09-27-2007, 10:04 PM
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After calling and talking with speartech and doing some more mechanical work on the car found out some new stuff. Everything is hooked up right, got power. The car is throwing the p040 and p058 code. Speartech said it could be the wrong tune files. Which could be because the guy I had flash my pcm didnt seem to know exactly what he was doing but he said he got it. Allen Futural is supposed to tune the car tomorrow morning. I just wanted to be able to drive the car to the shop. What do you guys think? Possible tune issue?
09-28-2007, 07:35 AM
#16
Originally Posted by Stangkilr
After calling and talking with speartech and doing some more mechanical work on the car found out some new stuff. Everything is hooked up right, got power. The car is throwing the p040 and p058 code. Speartech said it could be the wrong tune files. Which could be because the guy I had flash my pcm didnt seem to know exactly what he was doing but he said he got it. Allen Futural is supposed to tune the car tomorrow morning. I just wanted to be able to drive the car to the shop. What do you guys think? Possible tune issue?
09-28-2007, 07:51 AM
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Originally Posted by 98Z28CobraKiller
If you are not using a standalone controller for it, the tune file must be sent to someone like HPTuners so that they can make the changes. To the best of my knowledge, those changes cannot be made by a tuner on site. I dont believe that the part of the tune that needs to be modified can be accessed thru the interface.
