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DTC P0336

Tiny
DANE DESPAW SR.
  • MEMBER
  • 2003 BUICK RENDEZVOUS
  • 3.4L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 238,000 MILES
I just replaced the head gaskets and heads. Now I’m getting this dtc. I’m seeing that there are two ckp's in this engine. Does the dtc tell which one it is?
Saturday, June 25th, 2022 AT 2:31 PM

7 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

This code usually gets triggered by the crank sensor that is located behind the crank pulley, also known as the 24X.
Keep in mind this code can also be due to a wiring issue for the sensor.

I have attached the troubleshooting guide for the code P0336 below for your reference.
Follow those steps as it can help you determine the issue.

Let me know of any questions.
Thank you.
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Saturday, June 25th, 2022 AT 7:56 PM
Tiny
DANE DESPAW SR.
  • MEMBER
  • 72 POSTS
So, I pulled the harmonic balancer and this is what I found. A broken bolt that I can’t explain why it’s there or where it came from and, damage to the pulley...
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Saturday, July 2nd, 2022 AT 10:37 AM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
It almost looks like someone pried on it with a breaker bar. Not sure where the bolt could be from though.
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Saturday, July 2nd, 2022 AT 2:37 PM
Tiny
DANE DESPAW SR.
  • MEMBER
  • 72 POSTS
The only thing I can think of is maybe they tried pulling the pulley before I got ahold of this car, and didn’t have the right tools to do it.
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Saturday, July 2nd, 2022 AT 3:07 PM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Yes, that is what likely happened.
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Saturday, July 2nd, 2022 AT 4:01 PM
Tiny
DANE DESPAW SR.
  • MEMBER
  • 72 POSTS
I just posted another question about this car. I appreciate your help with this question.
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Monday, July 4th, 2022 AT 12:29 PM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
You are welcome.
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Tuesday, July 5th, 2022 AT 8:47 AM

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