03 4L60 E

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Joined: Thu Oct 31, 2013 2:58 pm

03 4L60 E

Post by borocollision » Sun May 28, 2017 12:33 pm

From working flawlessly to no movement. Hiway steady speed and throttle, no load , pops into nuetral. No 1234 or R. Fluid full, nice red. Pump? But then wouldnt i have noise? Shaft? Again wouldnt there be some noise? Sitting here waiting for tow truck on Rt 95. Shat else could have happened. ? Thanks.

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First Name: Bradley
Last Name: Miller

Re: 03 4L60 E

Post by buddha52 » Mon May 29, 2017 3:58 pm

More than likely the pump rotor broke would be my first guess. May take a cooler line off and check for flow.
Morgantown WV.
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"If you can't fix it with a hammer,you have an electrical problem"

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First Name: Bryan
Last Name: B

Re: 03 4L60 E

Post by Bryan » Tue May 30, 2017 11:47 am

Check the fluid level before you start it. Start the vehicle. If the fluid level does not go down on the stick, the pump rotor is not turning.

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First Name: Bob
Last Name: Metz
Location: St.Louis,Missouri, 8 miles from World Famous Ferguson

Re: 03 4L60 E

Post by metzautomotive » Wed Jun 21, 2017 10:12 am

Is it a Trailblazer/Envoy you have to check clearance for T/C - Flywheel.I have the T/C built about .250 taller to fix
Bob Metz

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First Name: Al
Last Name: Campbell

Re: 03 4L60 E

Post by Borotow » Sat Jul 15, 2017 3:27 pm

So I now have the unit out. The rotor is now a 5 piece, the rings are busted and the slide is split at the pivot pin. It was a 13 vain pump. What I need to know is what happened? Could be what Sucked air somehow?
Stuck Force Motor
Reg relief Valve?
Assembled wrong somehow? What else can I check? Converter looks perfect, transtar blue, but I am sure I should change it anyway at this time? I do not want to over look anything, This is the 3rd time I have had this unit out, rebuilt once at around 67K miles (used factory conv.) and then again 10 years and 100K miles later (March 2017 used reman conv) and now the broken pump. Can someone shoot me a list to go through? Thanks.

Al Campbell / Boro Collision

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