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Gmc 2009 acadia p0304

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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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2008 gmc acadia low beam light bulb changing

how do you change the low beam light bulb on the 2008 gmc acadia

Posted on Apr 02, 2009

Molson02536
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SOURCE: 2005 GMC Envoy 4wd 4.2liter V6 check engine light is on.

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

  • 1201 Answers

SOURCE: 2004 denali check engine light stays on

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

  • 293 Answers

SOURCE: 2007 GMC Envoy - Gas gauge showing empty and check engine light

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

  • 645 Answers

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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Engine light code P0304


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P0304


Hi there:
DTC P0304 Code - Cylinder #4 Misfire Detected
A P0304 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #4.

Symptoms may include:
the engine may be harder to start
the engine may stumble / stumble, and/or hesitate
other symptoms may also be present

A code P0304 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Possible Solutions:
If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

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Seems to be a misfire code, you could have a partially clogged injector. You can have them tested at a local car shop.

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3 Answers

P0303, P0316


You have a misfire on #3 for code p0303 & misfire for code p0316

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4 Answers

Got a p0304 code come up on my 2002 olds Bravada, replaced camshaft and it still didnt fixed it?


P0304 Code - Cylinder #4 Misfire Detected
A P0304 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #4.

Symptoms may include:
* the engine may be harder to start
* the engine may stumble / stumble, and/or hesitate
* other symptoms may also be present

Causes: A code P0304 may mean that one or more of the following has happened:
* Faulty spark plug or wire
* Faulty coil (pack)
* Faulty oxygen sensor(s)
* Faulty fuel injector
* Burned exhaust valve
* Faulty catalytic converter(s)
* Running out of fuel
* Poor compression
* Defective computer

Possible Solutions:
If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.


Hope helps.

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Is p0304 code basically a tune up?


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6. bad cylender rings
7.bad coil
hope this helps give feedback Fixya

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this may be a defective fuel injector or a defective PCM (powertrain control module).

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