EPC solinoid AGAIN ??? Help - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Buick When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-20-2013, 10:11 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2006
Posts: 471
Thanks: 0
Thanked 1 Time in 1 Post
goldfinger22 is on a distinguished road
Default EPC solinoid AGAIN ??? Help

Ok bought the 2000 lesabre with 25k on it...developed hard shifts dealer chgd the epc...problem went away but now with 75k its back..I understand it puts the tranny into hi pressure thats why you hear the pump whine and the hard shifts...if I shut the car off and restart it may not do it again for a month...is there anyway of by passing this epc so it never senses a slow shift and causes this ???
I dont want to have it torn down AGAIN
goldfinger22 is offline   Reply With Quote
Old 02-21-2013, 02:49 PM   #2
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Change the oil and filter and put in a shift kit. Your days of slow shifts will be behind you.
2kg4u is offline   Reply With Quote
Old 02-21-2013, 03:08 PM   #3
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Dec 2006
Posts: 471
Thanks: 0
Thanked 1 Time in 1 Post
goldfinger22 is on a distinguished road
Default

I was looking for a way to bypass letting the pump go into hi pressure...Like a toggle switch or something...

I dont even think there is a long shift...anyone done the shift kit and then never had the hard shifts or pump going to hi pressure after the kit ??

Which kit is the best one to use and how many qts of fluid and what fluid to use ??
Thx
goldfinger22 is offline   Reply With Quote
Old 02-21-2013, 08:16 PM   #4
Senior Member
True Car Nut
 
Soft Ride's Avatar
 
Join Date: Jan 2012
Location: BC Canada
Posts: 3,588
Thanked 340 Times in 302 Posts
Soft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud ofSoft Ride has much to be proud of
Default

I believe you 2000 Sabre has 4T65E transmission. Put on in my Pk.Ave easy and no harsh shifts no more. Had the upgraded DEXRON VI (6) with 7 quarts on standby. Put in 6 drove til hot then topped up until on full line. Also I use LubeGard red bottle to keep fluid cool.
Here is a link to shift kit I used
TransGo | 4T65E: SK 4T65E
Before I did the shift kit install, I used Trans Tune Can to clean up any varnish especially towards the valve body end.
Trans Tune | Sea Foam Sales Company
You drop tranny pan and drop down accumulator to install shift kit. Transgo has good instructions and my photos from this page will then make sense, how stuff laid out on table etc.
https://www.gmforum.com/buick-172/4t...-302566/page5/
Hope that helps.
Soft Ride is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Brake pedal low again and again and again NMP1 GMC/Chevrolet Truck/SUV 2 07-17-2015 11:56 AM
4T65E EPC piston spring size? dash8guru Oldsmobile 3 03-11-2014 03:01 PM
EPC Charity Car Show & The Lot 10-8-10 SpinEm_90 Your Ride: GM Pictures & Videos 7 10-21-2010 09:41 PM
Had new Pressure Solinoid installed, hard lock up shift goldfinger22 1992-1999 9 03-20-2008 01:20 AM
1991 starter solinoid shortstuf212559 1987-1991 3 08-07-2005 06:32 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:06 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.