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I have a 07 chevy cobalt Lt and my engine light is on. With code P0304! I sometimes smell something but unsure where it comes from. Had a complete tune up still the code is there.

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Could be coil have coil check

Posted on Apr 28, 2015


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Posted on Jan 02, 2017


SOURCE: chevy cobalt check engine light is on

there is no way you can check the transmission you must take it to the dealer.that is what i was told

Posted on Sep 04, 2008

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SOURCE: 2005 Chevy Cobalt, how do you reset a fault code?

Your car has a OBD2 hook up under the dash somewhere on the drivers side, You have to have a computer to hook up to that ODB plug and reset it, If you live near a Autozone they will clear the code for you for free, One other thing you try is disconnecting your battery for about 30 mins, that works on alot cars to reset the check light.

Posted on Mar 20, 2009

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SOURCE: I need to remove the front headrest of a 2008 chevy cobalt lt

Push the button and pull up on it at the same time

Posted on May 25, 2009

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SOURCE: why does reduce engine power light comes on chevy

That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.

You can go to most auto parts stores and they will pull the codes for you for free.

Posted on Jul 27, 2009

  • 14036 Answers

SOURCE: 2005 chevy cobalt 37.000 miles engine light on.


Posted on Aug 28, 2009

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What does the code 7E8 Engine Fuse code for 07 Cobalt? Was told by another mechanic he Cld'nt get any codes to come up n my engine was probably blown. A friend of mine hooked his scanner up n that's the...

Don't know what kind of code reader your friend used but that is a bogus coded . I work at chevy dealer ,have factory service info . Code's on all vehicle are P , B, C an u codes . P - powertrain B - body control module , C - chassie , U - communication network .
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engine was probably blown ?????? Engine light ? Check engine light bulb blown .

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Why ? Traction contol light lit ? Probably a DTC'S - diagnostic trouble code , fixing the problem will turn off the light .

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My 2008 chevy cobalt has a p0304 i think its crankshapt position sensor and it has the service traction light on

if you have done a tune up with coils,try replacing injector #4,there is a tsb on those injectors,repaired one the other day with this code

Dec 26, 2014 | 2008 Chevrolet Cobalt

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Why does my 07 Chevy cobalt try to go dead when I come to a stop

Could be for several reasons. First if you have a check engine light on go get the codes read and repost. You have either a bad idle speed solenoid, dirty throttle, or possible vacuum leak

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2008 chevy cobalt has trouble starting and has a strong fuel smell

If the fuel system is dumping too much fuel into the cylinders, the check engine light should be on and you should be able to get trouble codes from the computer. The codes would point you in the direction of the problem.
Is the light on ?

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07 lexus rx 350 with check engine light code p0304

Hi, did you ever get an answer? I have the same issue. Thanks.

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07 chevy cobalt 2.2L engine light is on steady

I also have a 2007 chevy cobalt and the check engine light has been on for about a year, so I went through Emissions and the code p2434 showed up---meaning the secondary air injector pump was bad, so now the air pump is replaced and I got it checked on a OBD scanner and it said there was low voltage to the air pump--meaning the old air pump was good and the problem is somewhere else (I checked the old pump with a volt metor)I got the code reset several times and the light still comes on. There is somethlng giving the pump low voltage and I don't know what the solution is. I may be wrong but it may be the connector that goes to the pump but I really don't know.

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Why does reduce engine power light comes on chevy

That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.

You can go to most auto parts stores and they will pull the codes for you for free.

Jul 27, 2009 | 2005 Chevrolet Cobalt

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I can smell the fumes of gas coming from under the hood of my car

Most likely you need the whole injector. They are a common problem on the Chevys. I would do all 4 if you have the money, and only pay the labor once instead of 4 different times. If you only have the money for one, then do just the one as it is a fire hazard.

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