0 rpms and tcs light on while car is running?

[quadracer960]

So i started the gtp today and noticed that the tach said 0 rpms and also noticed that my tcs light was on. Before anybody asks, yes the car was running and i didnt press the button. This happened before but didnt think anything of it. What could be the problem between the two? THANKS btw its a 00 gtp with 94,000 on the ticker with no ses lights on.

 

[rolyat]

Crankshaft position sensor, It's behind the harmonic balancer.

 

[Fivefingerdeathpunch]

Yea your CPS is bad.

i have a extra CPS senosr laying around, you can have it for the price of shipping if you want.

 

[JoshsGTP]

X3 I had the same thing go bad on my car

 

[quadracer960]

is there any side-effects besides a bad rpm reading and the light? i turned it off and back on and it went back to normal. how hard is it to install. i put one on my silverado, never the gtp lol.

 

[pacothetaco]

Mine would drop rpms to zero while driving, sometimes stalling.

its not hard the PITA part is getting the harmonic balancer bolt off.

I used a Lisle Harmonic Balancer Puller for GM and it worked perfect.

 

[shawngtp]

crankshaft position sensor, it's behind the harmonic balancer.

this ^^^^

 

[quadracer960]

Ok then. Seems like a common issue. Looks I got something to do over the weekend. Thanks for your help guys!

 

[Roanokegprix]

Ok then. Seems like a common issue. Looks I got something to do over the weekend. Thanks for your help guys!

did you get it put on? what bolts did you use? seems like the 1/4x28x3 is not big (round) enough, could I have a different harmonic balancer?

 

[TheOtherNick]

no, you are not lining the bolt up right, it is kinda hard to find the hole on the first time.

 

[ZR1Vette09]

no, you are not lining the bolt up right, it is kinda hard to find the hole on the first time.

that's what she said.

 

[TheOtherNick]

that's what she said.

I just load it up with flour and aim it for the wet spot.

 

[Vlad0691]

that's what she said.

^^ x2

 

[Roanokegprix]

:th_laugh-lol3:

I just load it up with flour and aim it for the wet spot.

 

[possum454]

Same thing with my car. Been doing this for a while, now having a problem with it shutting off, sometimes it starts right up other times it takes 10 to 30 minutes. Run a DTC scan, came back with PO336 crank position sensor circuit, range or performance problem. Have the part but need the correct puller. This does answer the tach and tcs problem. Thanks

 

[tai27yiuop]

Same problem here, stalling, starting issues, engine generally runs rough, etc.. Have yet install new sensor.. will post afterwords.. wish me luck

 

[camopaint0707]

Would this cause the abs light to be on as well?

 

[possum454]

It's a common issue. Eventually the car will start stalling on you and then, like mine did, will leave you stranded. It's not that difficult to change but it would help if you had access to a lift like I had. You'll need balancer puller, I just went to Advance and got one, and you'll need the 1/4x28x3 bolts that did not come with the puller. Make sure that you get the bolts aligned correctly, it's kind of tricky, and also the center puller blot where it goes into the crank, I used a socket to keep it from messing up the threads for the balancer bolt. Once the balancer is off you can take it from there. Good luck.