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Gary, ASE Certified Technician
Category: GMC
Satisfied Customers: 15574
Experience:  GCM master tech over 25 years
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I am having an issue with my 07 Escalade esv. I'm throwing

Customer Question

I am having an issue with my 07 Escalade esv. I'm throwing both C0561 and P0300.
Has brand new plugs and wires.
Submitted: 2 months ago.
Category: GMC
Expert:  Dan replied 2 months ago.

Hello, my name is ***** ***** I'm here to help get your problem solved.

Expert:  Dan replied 2 months ago.

Does the check engine light flash while driving? thanks.

Customer: replied 2 months ago.
it does and says service stabilitrac and then runs rough. Definite can tell its misfiring so I started with plugs and wires but now have the c0561 code in addition to p0300
Expert:  Dan replied 2 months ago.

C0561 is common to set any time there is a performance problem. If check engine light flashes that usually means you have a failed ignition coil. You can use a spark tester to see if each coil has strong spark, replace whatever coil has weak or no spark. Let me know if you have more questions or if there is anything else I can do to help. Thanks.

Customer: replied 2 months ago.
Yep, already at the store picking up a coil or two just in case. I will let you know if that fixes it. If not, what else could it be ?
Expert:  Dan replied 2 months ago.

It could be 20 different things but I'm pretty sure coil will take care of problem. Let me know how it goes, thanks.

Customer: replied 2 months ago.
Not a coil issue, all 8 tested good. Each plug had good spark.
Expert:  Dan replied 2 months ago.

Next step is a compression test, you could have a worn cam lobe. Let me know how compression goes, thanks.

Customer: replied 1 month ago.
Compression is fine
Expert:  Dan replied 1 month ago.

Does it run rough at all times or only sometimes? What were compression readings?

Customer: replied 1 month ago.
All the time. I didn't ask for readings, just had someone come check and they said good. That's what took so long.I can say though after about 10 min of driving, both my cats are 1k+ degrees on a scan tool so seems like it's running extremely lean.
Expert:  Gary replied 1 month ago.

new expert here i am sorry for the long wait

can you view live computer data when its acting up like current or history misfires ?

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