CPS SENSOR - WON'T COME OUT
#1
CPS SENSOR - WON'T COME OUT
Hi guys, I have a bit of a problem here. Couple weeks ago I couldn't start my car and after couple times it started and I got check engine light. Same night pulled a code of CPS sensor failing, purchased new part next day. Was planning on doing DIY as most of you did but didn't have time. So brought it to mechanic for quick replacement but he called me up and couldn't take it out, they sprayed PB and wd40 let it sit overnight. Next morning they tried again but it stuck in it. they don't wanna pull it hard because it can break, another option they suggested to try pull it one more time and if it will crack/break they will have to drop transmission to push it from inside.
Please let me know any other ways to take it out?! need my back on a road, please.
Thanks to EVERYONE
Please let me know any other ways to take it out?! need my back on a road, please.
Thanks to EVERYONE
#2
Member
It takes some finesse, I've had issues with them being somewhat seized on the 272 engines as well as the 112... you just have to keep wiggling and pulling and eventually it will come out. Does the engine actually run? Maybe try warming up the engine and trying.. although I know its in a tight spot and it'll be hot... all I know is eventually it will come out.
#3
It takes some finesse, I've had issues with them being somewhat seized on the 272 engines as well as the 112... you just have to keep wiggling and pulling and eventually it will come out. Does the engine actually run? Maybe try warming up the engine and trying.. although I know its in a tight spot and it'll be hot... all I know is eventually it will come out.
#5
MBWorld Fanatic!
Drop the transmission? Sounds like it's time for a new mechanic. It's screwed in. There's nothing to put a socket on from the bottom and it's not going to "push" anywhere. I could have this all wrong, but either they're stupid or they view you as someone with deep pockets.
#6
Member
Drop the transmission? Sounds like it's time for a new mechanic. It's screwed in. There's nothing to put a socket on from the bottom and it's not going to "push" anywhere. I could have this all wrong, but either they're stupid or they view you as someone with deep pockets.
#7
MBWorld Fanatic!
Having replaced my cps a year ago, yes, after you take out the bolt, if you can't get it out, start twisting, and shear it off somewhere in the case thickness, yup I can definitely see you needing to take out the trans.
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#8
MBWorld Fanatic!
It sounded to me like the OP was saying the wrench can’t get the bolt out. If the bolt is out and the plastic CPS is stuck, that’s even easier – heat the bell housing. Rotate the CPS so the ear that holds it in place is away from the threaded hole. Thread in a longer stud and heat the stud. To me, pulling the transmission to remove a CPS is insanity.
#9
MBWorld Fanatic!
Concur with Marcus - pulling the trans to R&R the CPS is like killing a fly with a guided missile, or insert your other favourite overkill analogy.
#10
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Join Date: Oct 2013
Location: Sydney, Australia - Post to Minden, NV
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C32 AMG, 997, Mustang '66
I had a go at the CPS as well, never had any luck. If it's seized or the bolt is shredded in there my only hope is really to pull the engine out. (far easier!)
Lucky for me my CPS hasn't failed yet, I was going to do it as a preventative.
I'll let the MB factory deal with it when the time comes.
Lucky for me my CPS hasn't failed yet, I was going to do it as a preventative.
I'll let the MB factory deal with it when the time comes.
#13
hi, guys
Quick update on CPS sensor. We did everything mentioned above and it wont move at all.
Feels like it's welded in that housing and it starting to crack. Another option we thought to drill it out or drill the screw in to it. That sensor is insane for me. Or time to drop my tranny - it would be my 3rd time in past 2 month just a money waste on dropping tranny for simple sensor.
Quick update on CPS sensor. We did everything mentioned above and it wont move at all.
Feels like it's welded in that housing and it starting to crack. Another option we thought to drill it out or drill the screw in to it. That sensor is insane for me. Or time to drop my tranny - it would be my 3rd time in past 2 month just a money waste on dropping tranny for simple sensor.