2001 Seville dies out????

[speedydog]

my son was driving twice already and car died while in motion and just died out coasted over to side put in park and it started right up, both times no service light both times car started right back up, after second time later the service light came on, so i told him to park it at home and don,t restart it until i checked codes, I only pulled up 2 same codes of po174(to lean bank 2) any ideas ???? i,m afraid to let him drive it especally that it dies in motion ,he loses power sterring etc. don,t know where to start looking and what caused the code

[CadillacSTS2003]

CKPS
100% sure

[speedydog]

Originally Posted by CadillacSTS2003

CKPS
100% sure

????? what is CKPS

[speedydog]

Originally Posted by speedydog

????? what is CKPS

never mind Crank shaft pos sensor

[CadillacSTS2003]

Crank Position Sensors
A&B
there are two
replace BOTH

[FrankT]

CranKshaft Position Sensor there are two of them, replace both.
But they should not set the lean codes, you may also have a vacuum leak, possibily a leaking pluemn.

[submariner409]

Eventually two or three more codes will set, pertaining to CranKshaft Position sensor(s)(CKP) and a stall or near condition. Maybe also an "attempt to start while not in P or N".

I don't have the thread url's written down, but start going back from here, page by page, and look for CKP, stall, slow speed stall. LOTS of info over the past 2 years.

Sensor B is upper, A is lower. www.rockauto.com. Japanese manufacture, $110 (?) for both. Not a difficult replacement, but car has to be up in the air to allow room to work on the front side of the engine, just to the right of the oil filter. #12575481 & 12575482

Click on an image and scroll in.

[CadillacSTS2003]

wow
its like an echo
we like posted that at the same time Frank!

[speedydog]

how about the CKP System Variation Learn Procedure what does the dealer charge for this, if i replace them myself do i need to have this done?? and can a regular corner mecanic do the learning procedure or does it have to be cadillac dealer

[FrankT]

Originally Posted by CadillacSTS2003

wow
its like an echo
we like posted that at the same time Frank!

Ya, too funny,
___________________________________________
Any Sub, I agree, he should do the CKP's first, clear codes, then recheck.

[FrankT]

Originally Posted by speedydog

how about the CKP System Variation Learn Procedure what does the dealer charge for this, if i replace them myself do i need to have this done?? and can a regular corner mecanic do the learning procedure or does it have to be cadillac dealer

You might not need the Variation Learn done, If it sets other codes, like misfire codes or the code for variation learn not done, I think it's P0315, then you will need a Tech2 and the procedure performed. I can't see it being expensive, it only take a few minutes.

[Ur7x]

Most dealers will charge you an hour of "door rate" to do the crank relearn ($90-$150). The sensor relearn procedure is almost never required. Replace the sensors drive the car... if it drives fine you are done... as above ONLY if it stumbles, misfires, etc... ONLY then take it to the dealer and have the crank sensor relearn done.

[speedydog]

holy crap I just finished changing them what a PAIN IN THE A$$ my hands and knuckls are red and bloody but well see how it goes no check engine or any thing lit up so hopefully i won,t have to go to dealer for Relearn Crank Variance, thanks for all the info everyone

[FrankT]

Originally Posted by speedydog

holy crap I just finished changing them what a PAIN IN THE A$$ my hands and knuckls are red and bloody but well see how it goes no check engine or any thing lit up so hopefully i won,t have to go to dealer for Relearn Crank Variance, thanks for all the info everyone

Did you remove the lower motor mount bolt and lower the front of the engine cradle? It should've been a piece of cake. I can do both in about 20 mins.
AJ has a procedure in tech tips that works really nice. Anyway, congrats on a job well done. .

Most dealers will charge you an hour of "door rate" to do the crank relearn ($90-$150).

what a rip!
I'll do for 1/2 that much and still feel like I'm overcharging. Once the engine at opeating temp, It takes like 10 seconds. I guess you have to pay for the overhead. Also the Tech2 is not cheap, over 3k for one.

Does anybody know if the aftermarket scanners have this feature?

[submariner409]

FrankT, No, aftermarket scanners are passive, which is why you really don't need one for late Cadillac diagnostic work: the DIC repeats the codes for you, while the Tech II allows a mechanic to read, set, and reset parameters. A "civilian" could get into real expensive trouble with a Tech II by resetting PCM values which could cause engine damage.