Impala Forums banner

1 - 10 of 10 Posts

·
Registered
Joined
·
287 Posts
Discussion Starter #1
Well, I had a really long post previously with no responses. Thought I would shorten it. Still getting a P0980: Transmission Fluid Pressure Sensor/Switch "E" Circuit Low on my 2014 Impala Limited LTZ

Has anyone gotten into the transmission valve body and replaced any of those switches? Think I read it involves dropped that front cradle to get the transmission pan off and get to the valve body?

Just trying to decide, with 97,000 miles on the car if it is worth it to try and diagnose and fix that issue or looking at something bigger? Have already cleaned the throttle body and new MAP sensor (also listed as trouble shooting steps, but also had MAP sensor code previously, which has not been back).

Thoughts?
 

·
Registered
Joined
·
287 Posts
Discussion Starter #3
Eric, are getting a p0980 and a p0989? May pm member Bart77.
No. Originally I had the P0989, P0160, and P2227. The P0160 and P2227 have not been back since replacing the MAP and cleaning throttle body.

So now only have the P0989. And some weird transmission characteristics at times. Even after clearing the code and the transmission adaptives.




Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
2 Posts
Well, I had a really long post previously with no responses. Thought I would shorten it. Still getting a P0980: Transmission Fluid Pressure Sensor/Switch "E" Circuit Low on my 2014 Impala Limited LTZ
Should be enough room to remove pan and tcm to replace pressure switches. Transgo and Sonnax makes a repair kit to replace the damaged films in the pressure switches.

Has anyone gotten into the transmission valve body and replaced any of those switches? Think I read it involves dropped that front cradle to get the transmission pan off and get to the valve body?

Just trying to decide, with 97,000 miles on the car if it is worth it to try and diagnose and fix that issue or looking at something bigger? Have already cleaned the throttle body and new MAP sensor (also listed as trouble shooting steps, but also had MAP sensor code previously, which has not been back).

Thoughts?
 

·
Registered
Joined
·
3 Posts
I started having a delay when shifting into gear turned out to be the pressure switch laminate discs. Never got any trans codes though. Was able to remove two nuts off drivers trans mount and lift trans with floor jack to remove valve body plastic pan/cover and valve body. Got the parts from Amazon. Was a sonnax kit #124740-TL30 comes with tools to aide installation of laminate discs and seals. Fixed my problem! Most of my switch laminates where burst/broke not allowing the pressure to build and activate the switch.
 

·
Registered
Joined
·
380 Posts
I started having a delay when shifting into gear turned out to be the pressure switch laminate discs. Never got any trans codes though. Was able to remove two nuts off drivers trans mount and lift trans with floor jack to remove valve body plastic pan/cover and valve body. Got the parts from Amazon. Was a sonnax kit #124740-TL30 comes with tools to aide installation of laminate discs and seals. Fixed my problem! Most of my switch laminates where burst/broke not allowing the pressure to build and activate the switch.
I might need to do the same thing. I have developed a fairly long lag when changing from reverse to drive, as well as an occasional ugly shift from second to third (or maybe third to fourth...I'll pay closer attention today to find out). Although I had no check engine light, I did scan the car and recall there being a transmission code related to pressure. I'll scan it again and see what comes up. Anything else you had to take off to get that TCM out?
 

·
Registered
Joined
·
287 Posts
Discussion Starter #7
I started having a delay when shifting into gear turned out to be the pressure switch laminate discs. Never got any trans codes though. Was able to remove two nuts off drivers trans mount and lift trans with floor jack to remove valve body plastic pan/cover and valve body. Got the parts from Amazon. Was a sonnax kit #124740-TL30 comes with tools to aide installation of laminate discs and seals. Fixed my problem! Most of my switch laminates where burst/broke not allowing the pressure to build and activate the switch.
Thanks for that information and tip. Yes, my research on that code did keep talking about the seals for those switches going bad. Good to hear not as horrible to get in there than I thought.


Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
3 Posts
I might need to do the same thing. I have developed a fairly long lag when changing from reverse to drive, as well as an occasional ugly shift from second to third (or maybe third to fourth...I'll pay closer attention today to find out). Although I had no check engine light, I did scan the car and recall there being a transmission code related to pressure. I'll scan it again and see what comes up. Anything else you had to take off to get that TCM out?
Mine was doing the same thing long lag from park and crappy shifts. I took off air intake and filter housing box just to have a little more room. But besides the drivers trans mount hardware that's it. Took maybe 1-2 hrs.
 

·
Registered
Joined
·
380 Posts
Mine was doing the same thing long lag from park and crappy shifts. I took off air intake and filter housing box just to have a little more room. But besides the drivers trans mount hardware that's it. Took maybe 1-2 hrs.
Thanks. Guess I'll order that kit and get to work. Appreciate the info. The code I have stored is P0989 also.
 

·
Registered
Joined
·
287 Posts
Discussion Starter #10
Thanks. Guess I'll order that kit and get to work. Appreciate the info. The code I have stored is P0989 also.
Keep us updated. I won’t be able to do ours any time too soon.


Sent from my iPhone using Tapatalk
 
1 - 10 of 10 Posts
Top