Trans not shifting right after cam
#1
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Trans not shifting right after cam
I have a built 4l60e that has been good to me and has about 10k on. It's a monster in a box rebuilt kit good to 550 hp or so.
Anyways, before the cam, no problems, not even a hint it is bad. After the ms4 went in, the trans will shift fine till 3rd, acts like slipping to about 3k or so. Fluid is fine. And since the cam, it's been babied since it's gotta be broken in. I'm hoping it ls maybe a shift solenoid, or something tune related.
I'm stumped and pissed at the same time, any suggestions?
Thanks
Anyways, before the cam, no problems, not even a hint it is bad. After the ms4 went in, the trans will shift fine till 3rd, acts like slipping to about 3k or so. Fluid is fine. And since the cam, it's been babied since it's gotta be broken in. I'm hoping it ls maybe a shift solenoid, or something tune related.
I'm stumped and pissed at the same time, any suggestions?
Thanks
#2
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Presuming it was tuned, maybe the airflow calculated
is hokey low and starving line pressure? Look at force
motor current or commanded line% while it's misbehaving.
Look at calculated Delivered Torque - Trans PID.
A cam swap ought not change a solenoid's behavior and
coincidence is the last thing to suspect.
is hokey low and starving line pressure? Look at force
motor current or commanded line% while it's misbehaving.
Look at calculated Delivered Torque - Trans PID.
A cam swap ought not change a solenoid's behavior and
coincidence is the last thing to suspect.
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I have a built 4l60e that has been good to me and has about 10k on. It's a monster in a box rebuilt kit good to 550 hp or so.
Anyways, before the cam, no problems, not even a hint it is bad. After the ms4 went in, the trans will shift fine till 3rd, acts like slipping to about 3k or so. Fluid is fine. And since the cam, it's been babied since it's gotta be broken in. I'm hoping it ls maybe a shift solenoid, or something tune related.
I'm stumped and pissed at the same time, any suggestions?
Thanks
Anyways, before the cam, no problems, not even a hint it is bad. After the ms4 went in, the trans will shift fine till 3rd, acts like slipping to about 3k or so. Fluid is fine. And since the cam, it's been babied since it's gotta be broken in. I'm hoping it ls maybe a shift solenoid, or something tune related.
I'm stumped and pissed at the same time, any suggestions?
Thanks