03 4L60 E

Post Reply
borocollision
Posts: 25
Joined: Thu Oct 31, 2013 2:58 pm
Other:

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.

buddha52
Posts: 68
Joined: Tue Feb 10, 2015 10:12 pm
First Name: Bradley
Last Name: Miller
Other:

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.
BRAD MILLER
Morgantown WV.
Like us on Facebook@ "Otto Matics"

"If you can't fix it with a hammer,you have an electrical problem"

Bryan
Posts: 20
Joined: Mon Jun 20, 2016 6:21 pm
First Name: Bryan
Last Name: B
Other:

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.

metzautomotive
Posts: 173
Joined: Thu Oct 31, 2013 3:06 pm
First Name: Bob
Last Name: Metz
Other:
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

Borotow
Posts: 11
Joined: Wed Aug 19, 2015 6:08 pm
First Name: Al
Last Name: Campbell
Other:

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
Borocollision@aol.com

GNeric
Posts: 83
Joined: Tue Feb 25, 2014 2:51 pm
First Name: Eric
Last Name: Ruybalid
Other:

Re: 03 4L60 E

Post by GNeric » Tue Aug 01, 2017 12:18 am

I see more broken 13 vane rotors than any others. Material between vane slots is less than the 10 vanes. I always use the hardened rings in every build but I always go with GM rotors and not the aftermarket supply. When they do break, you can see the "aeration" in the metal. Aftermarket looks way less uniform compared to factory.
Eric Ruybalid
SR Performance
"#1 in the solar system, except on Uranus where we are a solid #2"

Borotow
Posts: 11
Joined: Wed Aug 19, 2015 6:08 pm
First Name: Al
Last Name: Campbell
Other:

Re: 03 4L60 E

Post by Borotow » Wed Aug 16, 2017 10:19 pm

So I put a reman pump in from Transtar. Was told it had been built with sonax parts. Also reman converter. Now, this trans worked perfect after the rebuild before the pump broke. Perfect. Just stopped. Now after putting in the pump, converter, I get a very small bump in first. Like an old Ford starting in 2 then bumping to 1st when you hit the throttle. This is different. Idles at 550-600 rpm, ease on the throttle and it goes to about 700 rpm bumps and then moves. Its in 1st. Also does it in reverse. But not always, it may go a day or two completely normal. Where do I look ? I guess I should put a gauge on it, but either too lazy or busy to get it in again. Not enough pres at idle? Any help would be grateful.
al campbell / Boro Collision

bndtransmission
Posts: 193
Joined: Thu Oct 31, 2013 2:58 pm
Other:

Re: 03 4L60 E

Post by bndtransmission » Fri Sep 22, 2017 8:34 pm

What did you find on this?
Brent Hill
B&D Transmissions
Wooldridge, Mo.
660-839-2237

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest