After replacing the oil pressure sensor the engine has a ticking noise and idles rough
WILLIE HENSON
MEMBER
2011 GMC YUKON
5.3L
V8
2WD
215,155 MILES
My oil pressure sensor went out so I removed the intake and changed it. After putting everything back together I started the vehicle and now it Idles rough and I have a ticking noise coming from my engine. Also a new code p0307 it has a misfire in 7. I took it back apart and cleaned my injector it’s running rough. Any ideas what I could do next?
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Saturday, February 20th, 2021 AT 4:38 PM
6 Replies
JACOBANDNICKOLAS
MECHANIC
109,762 POSTS
Hi,
Since you had it apart and not it's running rough, the first thing I would be checking for is an engine vacuum leak. It's possible a vacuum hose was left off or damaged.
Let me know what you find. Also, let me know if the misfire is gone or if there are any new codes.
Take care and God Bless,
Joe
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Sunday, February 21st, 2021 AT 4:56 PM
WILLIE HENSON
MEMBER
4 POSTS
So I have fixed the problem it ended up being a misfire on all 8 cylinders and my fuel injectors was still dirty, but now I’m just left with a tick that came from nowhere. Any ideas what that could be? I started driving it and the tick stops after I hit the speed limit but starts back up when I come to a stop again.
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Sunday, February 21st, 2021 AT 5:11 PM
JACOBANDNICKOLAS
MECHANIC
109,762 POSTS
Hi,
If possible, record what you hear and upload it for me to hear. Hopefully, I'll be able to identify it.
I will watch for your reply.
Take care,
Joe
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Sunday, February 21st, 2021 AT 6:35 PM
WILLIE HENSON
MEMBER
4 POSTS
This is what I have:
Video (Click to make bigger)
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Sunday, February 21st, 2021 AT 6:43 PM
WILLIE HENSON
MEMBER
4 POSTS
As you can hear from the video the tick stops once I get so far up on the RPMs then comes back as the RPMs goes back down.
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Sunday, February 21st, 2021 AT 6:45 PM
JACOBANDNICKOLAS
MECHANIC
109,762 POSTS
I hear it. Do me a favor. Take a long-handled screwdriver or even a piece of 2x4 and place it on one valve cover at a time to see if you can tell which side it is coming from. I am thinking it is a loose rocker arm.
I know you replaced the oil pressure sensor. Was there ever a point the engine didn't have oil pressure?