Question about 2009 GMC Acadia SLT-1
Just had injector #6 replaced last week and now check engine light w/P0304 code is happening. Is normal for injects to go out? Could dealership mechs have loosened gunk and now #4 is clogged.
Posted by Anonymous on
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Posted on Jan 02, 2017
The check valve is #12619128 and the gasket is #24577193. I think $65 and $75 respectively you can try websites like parts4chevy.com and gmpartsdirect.com.
your talking about the diverter valve for the AIR pump. In which case it is easy to do and its easily accesible in the engine bay. The valve is located at the passenger side by the transmission dipstick tube under the intake tube. Good luck
Posted on Apr 08, 2009
There is no p01001, it's either p0100, or p0101.
Anyway, it's the mass air flow sensor that's bad. The p0171 and p0174 is a lean condition on bank 1 and bank 2, which are the oxygen sensors. Change the mass air flow sensor and that should take care of the p0171 and 74 codes.
The mass air flow sensor can cause the 02 sensors to read lean.
The u1301, is a class 2 circuit short to battery. That, you have to test wires to find with a voltmeter/continuity tester.
I would try and find that short before changing the flow sensor, you don't need the new one shorting out, they are not that cheap.
Posted on Nov 17, 2009
This is a safety feature that the vehicle brings. You need to reset the E.C.U on dealership or it will keep doing it to you. It was probably caused by one single time that you did not closed the fuel cap correctly. Good luck
Posted on Dec 29, 2009
SOURCE: have a code p0304 please help
the code that you are receiving is the second cylinder on the passenger side, in otherwords the second spark plug from the front of the motor to the rear.it is not firing properly. now you have to figure out if it is the spark plug or wires or injectors, replace the plugs and wires first, if that doesn't fix than you may need to replace the injetor on number 4 cylinder.
Posted on Jul 24, 2010
Testimonial: "Hi Thank you. I did change the wire and plug. Now I will try the injectors."
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