Help with code p0442

225

Asked by Aug 25, 2015 at 11:29 PM about the 2005 Chevrolet Cavalier Base Coupe

Question type: Maintenance & Repair

Hi, I recently purchased a 2005 Chevrolet Cavalier from craigslist, It had its
check engine light on, but I did a scan and saw that code P0442 was the only
code it came back with. I know that's an evap code, and it's not too hard to fix,
and doesn't affect how the car runs, but also that it can't pass emissions with
that code. This is my first car, I'm 16, and honestly don't know a whole lot about
where to look to fix this. I would really appreciate any help you guys could offer
me! Thank you, Josh

26 Answers

225

I would like to also state I purchased a new gas cap and the reset the code and it came back

2 of 2 people found this helpful.
26,265

is it the gas cap? or a hose leak or the canister???

1 of 1 people found this helpful.
225

It's not the gas cap, i changed it and reset the code but the code came back. Like I said, this is my first car, and I'm not too familiar with where to look for broken lines or parts. I found the Purge Solenoid in the engine, tomorrow I can post a picture to maybe see if you can tell if it might be the issue, it doesnt look like it has any cracks or anything. Thank you for your quick response

2 of 2 people found this helpful.
68,745

This is going to be a small leak in the EVAP system. Possibly not visible to the naked eye. You'll need to have a smoke test done to find the leak. The shop will force harmless smoke in the system through the gas tank. Then carefully inspect the system and see where the smoke is coming from. That'll be where the system is leaking. HTH. -Jim

1 of 1 people found this helpful.
225

Do you know the average cost of the smoke test?

1 of 1 people found this helpful.
68,745

I'd say around $100. Figure on about an hour's worth of labor. HTH. -Jim

1 of 1 people found this helpful.
225

and what would you say would be the worst case to get a common part fixed with the smoke test?

2 of 2 people found this helpful.
225

Also, if i wanted to change the purge solenoid, how would i go about doing that?, how do i disconnect the hoses/remove the valve? Again i apologize if this is basic things, I am just very inexperienced with this kind of thing.

1 of 1 people found this helpful.
68,745

No apologies needed. Asking questions is how we learn. It's most likely a pin hole in one of the lines going from the gas tank to the engine. A larger leak, which could be seen by a visual inspection, would set a different trouble code and possibly cause the engine to run poorly. I wouldn't change the purge solenoid. That would set another trouble code as well. HTH. -Jim

1 of 1 people found this helpful.
225

I simply want to learn how to take it out to inspect it and also for my own knowledge, the power connector seems easy to take off, but im not too confident with taking off the other hoses. also, if i were to raise my car on jacks, would i be able to crawl under on a creeper and see the lines? I know you said its probably pin hole sized, but it never hurts to look. If i would be able to see it, could you maybe post a picture of what hoses and such i would be inspecting?

1 of 1 people found this helpful.
225

or describe where i would fine the lines

1 of 1 people found this helpful.
68,745

I see. You'll find the EVAP lines running from the gas tank to the engine along side of the fuel lines. They'll either be marked "EVAP" or "VAPOR". To get an idea of what the purge solenoid looks like you can look it up on rockauto.com. They have pictures of just about every part on your car. Once you put in your vehicle information you can click on " emissions " and you'll be able to see the solenoid. If you click on "fuel/air" you can see the fuel pump. You'll notice 3 (I believe) hoses coming from the fuel pump module. One is fuel out, one is fuel return, and one is for the EVAP system. HTH. -Jim

2 of 2 people found this helpful.
225

alright, and if i wished to take the purge solenoid out of my vehicle for inspection, would i just squeeze the ends of the hoses on the solenoid, and would that allow them to come off of the solenoid?

1 of 1 people found this helpful.
68,745

Yes, that's correct. This is how you learn. Good job!! HTH. -Jim

3 of 3 people found this helpful.
225

Thanks you for your help. Tomorrow, I'll see what I can do about taking it out, taking some pictures of it, and the lines and seeing what you guys think. Should I post a separate thread or post them on this one?

1 of 1 people found this helpful.
68,745

You're welcome. Glad to help. If you have questions about this issue, continue this thread. But if you have questions about something different, like for example, "what's this part" or "what's this do", then start a new thread. HTH. -Jim

2 of 2 people found this helpful.
225

In response to the part about looking at the fuel pump, I am looking at oictures at the link you provided (rockauto.com) and all the fuel pumps for my vehicle that are coming up only have two hoses on them. I will be home in a little while and will be able to check for myself, it was too late for me to check my vehicle last night. Where on the fuel pump is the evap line? or is it just a line next to the hoses going from fuel pump to engine?

1 of 1 people found this helpful.
68,745

It's going to be close to the two lines for the fuel pump. Apparently on yours it's separate. But it'll be close. Some GMs have the EVAP line incorporated with the fuel pump module. The two lines you're seeing are for fuel out and fuel return. HTH. -Jim

2 of 2 people found this helpful.
225

Ok, so I looked at the Purge solenoid and it looks fine, no cracks chips or holes, so at the moment i really don't know what it could be, when I get the chance I'll have to take it to a shop for the smoke test, but also, while I was looking at the solenoid, I heard a wire drop inside the engine compartment, Ill post a picture of it.

1 of 1 people found this helpful.
225

Here are a few more photos of the wire and where i picked it up:

5 of 5 people found this helpful.
225

More:

1 of 1 people found this helpful.
225

Last one: If you want to see any other part of the engine let me know and I'll take a pic of it.

2 of 2 people found this helpful.
68,745

Try scanning the computer again. See if any additional trouble codes pop up. Unfortunately that wire harness could go just about anywhere. Looks like it's been repaired before. HTH. -Jim

2 of 2 people found this helpful.
225

I scanned again but still nothing,

So what did you do that ultimately fixed it?

225

I totaled the car and bought a Mercury Sable

Your Answer

Add photo

Related Questions

  • Help with code p0442 26 answers

    Hi, I recently purchased a 2005 Chevrolet Cavalier from craigslist, It had its check engine light on, but I did a scan and saw that code P0442 was the only code it came back with. I know that's an e...

    2005 Chevrolet Cavalier Base Coupe

    -

    Maintenance & Repair

  • 2002 Chevy Cavalier Code P0130? Help? 1 answer

    Hello forum, wanna say thanks in advance for answering my question.. My Chevy Cavalier (180k miles, 2.2L, 4 door,) recently popped up the check engine light but I had no mechanical issues and I was o...

    2002 Chevrolet Cavalier Base

    -

    Maintenance & Repair

  • Help me with my Cavalier not starting. 2 answers

    I have an 02 Cav that almost daily gives me trouble starting. Sometimes I put the key in and it starts right away no problem, other times I have to mess with turning the key many times for 10-15 mins ...

    2002 Chevrolet Cavalier LS

    -

    Maintenance & Repair

  • Help 4 answers

    Where can I find my activation code for my cavalier in the original owners manual what page can I find it in

    2004 Chevrolet Cavalier

    -

    Maintenance & Repair

  • 2001 cavalier trouble code p0171 7 answers

    so car was running fine then gas cap broke so i used an immed one from another vehicle and then .... before i have had the chance to replace with correct... all of a sudden the trac off light pops ...

    2001 Chevrolet Cavalier Base

    -

    Maintenance & Repair

Cavalier

Looking for a Used Cavalier in your area?

CarGurus has 993 nationwide Cavalier listings starting at $695.

ZIP:

Search Chevrolet Cavalier Questions

Chevrolet Cavalier Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,960
#2 dandyoun
dandyoun
Reputation 1,350
#3 mbar1
mbar1
Reputation 1,190
View All

Related Models For Sale

Used Chevrolet Cobalt
69 Great Deals out of 3,833 listings starting at $1,497
Used Chevrolet Malibu
1,147 Great Deals out of 80,895 listings starting at $2,500
Used Honda Civic
859 Great Deals out of 84,016 listings starting at $750
Used Chevrolet Impala
554 Great Deals out of 35,538 listings starting at $899
Used Ford Focus
844 Great Deals out of 53,941 listings starting at $700
Used Honda Accord
1,079 Great Deals out of 66,787 listings starting at $1,000
Used Toyota Corolla
970 Great Deals out of 69,188 listings starting at $1,800
Used Ford Mustang
725 Great Deals out of 44,323 listings starting at $1,500
Used Toyota Camry
1,245 Great Deals out of 82,706 listings starting at $750
Used Pontiac Sunfire
343 listings starting at $2,100
Used Chevrolet Silverado 1500
1,978 Great Deals out of 183,623 listings starting at $1,595
Used Chevrolet Aveo
27 Great Deals out of 1,614 listings starting at $1,700
Used Volkswagen Jetta
567 Great Deals out of 44,238 listings starting at $800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.