Question about 2003 Oldsmobile Alero

2 Answers

Took my car to Autozone, because service engine soon light came on. Two codes came up p0445 and p0442 I changed the gas cap and now only p0442 is showing. It didn't pass emisions. What can I check?

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 16 Answers

What did not pass? the COs or NOs if co.s its the cat if no.s its a fuel problem

Posted on Jan 04, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 184 Answers

Hi, I found a great DTC P0445 - EVAP Purge Control Circuit Fault article here with steps for you to follow:
http://www.bba-reman.com/content.aspx?content=NEXT_DTC_P0445

Oh, and FYI, you can lookup any code at http://www.check-engine-light.com to see what they mean.

Posted on Jan 03, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

How to reset Service Engine Soon light after replacing gas cap? Took to AutoZone when the Service Engine Soon light came on Error code P0440.


Disconnect the negative battery cable for 30 minutes. Reconnect after and the code will clear. However if the problem persists, the code will come back with in 20 miles or 30 minutes.

Aug 02, 2014 | 2000 Buick Regal LS

1 Answer

PO440


http://www.obd-codes.com/p0442
P0440 indicates the failure of the EVAP system to develop proper vacuum. If you got
and replaced a proper good quality gas cap, you have corrected the most common cause.
However, in fully searching the causes of this code (http://engine-codes.com/p0440_chevrolet.html ) (pardon the generic GM info, but will apply for you)-----you will find there are 5 other causes of the vacuum failure, which are independent of the gas cap. Your good local mechanic can sort those out; I would save your gas cap
receipt if you were advised to buy one not needed. As you probably know, your
State emission test facility checks your gas cap----so that is another way to find that specific portion of this answer,
(for their fee).
P0300 is a generic misfire code. For this, a specific Cadillac forum may be most
helpful = 2001 Deville intermittent service engine soon light code P0300
co-logo-100x100.png 2001 Deville intermittent service engine soon light code... I recently bought this car from an owner who took decent care of it but a week after i bought it, the service engine light appeared. After a few View on www.cadillacforums... Preview by Yahoo You will see that this generic code is perhaps more serious, costly, and harder
to track down than the P0440. You will also discover that P0301 is cylinder 1 misfire, P0302 is cylinder 2, and etc, etc. If you get a good diagnostic, they will generally
be able to localize the problem fairly specifically---and get a more specific fix. The person who reported this code was unhappy because he was given several ($$) fixes,
before he got one that erased the code, and was a solution. (Be forewarned ----A generic misfire can have umpteen issues--or one! !; use your own local preferred method for solving this with a mechanic who gives you good service, and stands behind what they do.)
2001 Deville intermittent service engine soon light code P0300

Jun 04, 2014 | 2001 Cadillac DeVille

1 Answer

The engine light came on and it said "service engine soon". I called On-star and they said to drive it seven more times. They said the diagnostic code was P0442. I looked it up and it said possible


I don't know the age of your car, but it is likely the O ring on the gas cap is leaking, not allowing the fuel system to work properly. If you forgot to put on the gas cap or did not tighten it, after seven runs, the check engine light should clear. If it does not, then the easiest solution is to buy a new gas cap from the dealer. It will be about $25 - $30, and you can install it yourself. After installing the new cap, and seven trips later, IF the gas cap was the problem, the light should clear.

I have tried to replace the O ring on a cap before, but found it nearly impossible. Another trick would is to lightly coat the O ring with vasoline - then seven trips to see if that clears the light. This is only a temporary solution, but it may tell you if the problem is the gas cap. Godd luck!

Nov 27, 2012 | 2005 Cadillac Deville

1 Answer

2004 Grand Prix GT gas cap light,an engine light is on. Took it to autozone an code read po445 replaced gas cap, an light is still on. is there a time limit on light going out if i jus replaced it? Or what...


P0445 - Evaporative Emission Control System Purge Control Valve Circuit Shorted is located in the engine compartment and is most likely the root of the problem.Would check the plug and wiring going to this to verify that no plug or wiring damaged has occurred.It is quite possible the part has gone bad.

Apr 26, 2011 | 2004 Pontiac Grand Prix

3 Answers

Ok so my service Engine light came on so I took the truck, a 2003 S10, to Autozone and they hooked the truck up to their tester and diagnosed it as a faulty gas cap. I purchased the cap & was told the...


there isnt usually a faulty gas cap code... there is evap system leak codes which could be caused by a faulty gas cap or filling up your gas tank while the truck running... if that was the problem and the problem is fixed then yes the codes will usually turn off after completing a few drive cycles

Mar 02, 2011 | 2003 Chevrolet S-10

1 Answer

Code, p0442 p0445


P0442 - Evaporative Emission Control System Leak Detected (small leak)

This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

Symptoms: You likely won't notice any drivability problems.

Causes: A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal

Possible Solutions: with a P0442, the most common repair is to:
* Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
* Otherwise, replace the gas cap, or
* Inspect the EVAP system for cuts/holes in tubes/hoses



P0445 - Evaporative Emission Control System Purge Control Valve Circuit Shorted.
Possible Solutions: with a P0445, the most common repair is to:
* Bad or loss contact wires
* Check harnesses, replace it


Hope helps (remember to rate this).

Nov 05, 2010 | 1999 Jeep Cherokee

2 Answers

P0442 code-2004 mitsubishi diamante


its an evap system small leak. most common cause is a loose gas cap. but could be any leak in the tank vent system

Apr 21, 2010 | 2004 Mitsubishi Diamante

1 Answer

Service engine soon light came on. AutoZone read


Sometimes you have to wait a week for the light to go off, the computer has to go through several start/run/stop cycles.

Nov 22, 2009 | 2004 Oldsmobile Alero

4 Answers

P0442 check engine light code


The computer that read the code for you can also reset it.  If you don't have one, you can go to your local auto parts store and have them reset it for you.  This is what your code means P0442 Evaporative Emission Control System Leak Detected (small leak).  This is what Causes it and possible fixes: CausesA code P0442 most likely means one or more of the following has happened:
  • A loose or improperly affixed gas cap
  • A non-conforming gas cap (i.e. not factory/original brand)
  • A small leak/hole in a fuel vapor hose/tube
  • Other small leak in EVAP system
  • Faulty vent o-ring seal
Possible SolutionsWith a P0442, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, or
  • Inspect the EVAP system for cuts/holes in tubes/hoses

May 21, 2009 | 2005 Kia Sorento

Not finding what you are looking for?
2003 Oldsmobile Alero Logo

1,387 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6880 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...