Question about 2006 Saturn ION

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My check engine light came on and when i pushed my onstar button it said something about my gas cap. do you know what it may be? i did just put a locking one on my car

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Your new locking cap is no good. Does the dealer offer one? If so get that one. Your new cap is not sealing.

Posted on Nov 10, 2009

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Locking gas caps aren't recommended on fuel injected cars cause of fuel emmissions what's going on is it is loosing pressure that the car needs to run clean emmissions if you live in california you can have your gas cap tested by a smog tech to make sure it is gonna do what it should

Posted on Nov 10, 2009

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Newer vehicles require a much tighter seal on the fuel systems. If the new cap you put on doesn't seal properly it will set of a check engine light. Put your old cap back on and after a few starts and shutdowns it should clear the code by itself. You could try turning the new cap a bit tighter, but I would bet it won't seal properly.

Posted on Nov 10, 2009

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Your fuel system is a sealed system and part of the emission system also.If the gas cap is not tight or the seal has gone bad on the cap it will set a light.

Posted on Nov 10, 2009

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Engine light on, took to dealer they did a smoke test found out gas cap po442. know 3wks later back on check cap loose again .need a new cap or is it something else. denice


You said nothing about model, make, or year of vehicle, but on most vehicles, you have to turn the gas cap tightly until it clicks a couple of times when putting it on. If you only turn it (lightly) until it stops moving, it can work itself loose. If you are turning it until it clicks and it comes loose, you should replace the gas cap.

Oct 24, 2016 | Cars & Trucks

1 Answer

Check light on for kia opirus 2008


Scanned the PCM; If the check-engine light comes on, here are some tips on what you should do:
- Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating. These conditions mean you should pull over and shut off the engine as soon as you can find a safe place to do so. On some cars, a yellow "check engine" means investigate the problem, while a red "check engine" means stop right now.
- Try tightening your gas cap. This often solves the problem. Keep in mind that it may take several trips before the light resets. Some vehicles have a separate indicator that warns of a loose gas cap before the condition sets off the "check engine" light.
- Reduce speed and load. If the "check engine" light is blinking or you notice any serious performance problems, such as a loss of power, reduce your speed and try to reduce the load on the engine. For example, it would be a good idea to stop towing a trailer. Have the car checked as soon as possible to prevent expensive damage.
- Contact OnStar, if available. If you have a 1997 or later General Motors vehicle equipped with OnStar and an active OnStar subscription, contact an advisor who can read the trouble code remotely and advise you about what to do.
- Have the code read and the problem fixed. If you want to diagnose the malfunction yourself, you can buy a scan tool at most auto parts stores. Prices range from about $40 to several hundred, depending on the model and the features. The tools come with instructions on how to hook them up and decipher the codes. But unless you have a good knowledge of automotive diagnostics, you're probably better off taking the vehicle to a professional. Some automotive parts stores will read and interpret the code for you without charge. Unless there is an easy fix, they may simply refer you to a mechanic.
- Don't go for a state emissions test. In a late-model car, an illuminated "check engine" light probably is a sure sign your car will fail the test. In some states, it's an automatic failure, even if the problem was nothing more than a loose gas cap. By the way, don't bother trying to fool the inspection station by disconnecting the battery or using any other method to erase the trouble code and turn off the "check engine" light. Your vehicle's computer will let the inspection station know that its codes have been erased, and you'll just have to go back again.

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.

Feb 15, 2012 | 2008 Kia Opirus 3.5

1 Answer

Check light is on


Scanned the PCM; If the check-engine light comes on, here are some tips on what you should do:
- Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating. These conditions mean you should pull over and shut off the engine as soon as you can find a safe place to do so. On some cars, a yellow "check engine" means investigate the problem, while a red "check engine" means stop right now.
- Try tightening your gas cap. This often solves the problem. Keep in mind that it may take several trips before the light resets. Some vehicles have a separate indicator that warns of a loose gas cap before the condition sets off the "check engine" light.
- Reduce speed and load. If the "check engine" light is blinking or you notice any serious performance problems, such as a loss of power, reduce your speed and try to reduce the load on the engine. For example, it would be a good idea to stop towing a trailer. Have the car checked as soon as possible to prevent expensive damage.
- Contact OnStar, if available. If you have a 1997 or later General Motors vehicle equipped with OnStar and an active OnStar subscription, contact an advisor who can read the trouble code remotely and advise you about what to do.
- Have the code read and the problem fixed. If you want to diagnose the malfunction yourself, you can buy a scan tool at most auto parts stores. Prices range from about $40 to several hundred, depending on the model and the features. The tools come with instructions on how to hook them up and decipher the codes. But unless you have a good knowledge of automotive diagnostics, you're probably better off taking the vehicle to a professional. Some automotive parts stores will read and interpret the code for you without charge. Unless there is an easy fix, they may simply refer you to a mechanic.
- Don't go for a state emissions test. In a late-model car, an illuminated "check engine" light probably is a sure sign your car will fail the test. In some states, it's an automatic failure, even if the problem was nothing more than a loose gas cap. By the way, don't bother trying to fool the inspection station by disconnecting the battery or using any other method to erase the trouble code and turn off the "check engine" light. Your vehicle's computer will let the inspection station know that its codes have been erased, and you'll just have to go back again.

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

Feb 15, 2012 | 2008 Kia Opirus 3.5

1 Answer

Check engine light


Scanned the PCM; If the check-engine light comes on, here are some tips on what you should do:
- Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating. These conditions mean you should pull over and shut off the engine as soon as you can find a safe place to do so. On some cars, a yellow "check engine" means investigate the problem, while a red "check engine" means stop right now.
- Try tightening your gas cap. This often solves the problem. Keep in mind that it may take several trips before the light resets. Some vehicles have a separate indicator that warns of a loose gas cap before the condition sets off the "check engine" light.
- Reduce speed and load. If the "check engine" light is blinking or you notice any serious performance problems, such as a loss of power, reduce your speed and try to reduce the load on the engine. For example, it would be a good idea to stop towing a trailer. Have the car checked as soon as possible to prevent expensive damage.
- Contact OnStar, if available. If you have a 1997 or later General Motors vehicle equipped with OnStar and an active OnStar subscription, contact an advisor who can read the trouble code remotely and advise you about what to do.
- Have the code read and the problem fixed. If you want to diagnose the malfunction yourself, you can buy a scan tool at most auto parts stores. Prices range from about $40 to several hundred, depending on the model and the features. The tools come with instructions on how to hook them up and decipher the codes. But unless you have a good knowledge of automotive diagnostics, you're probably better off taking the vehicle to a professional. Some automotive parts stores will read and interpret the code for you without charge. Unless there is an easy fix, they may simply refer you to a mechanic.
- Don't go for a state emissions test. In a late-model car, an illuminated "check engine" light probably is a sure sign your car will fail the test. In some states, it's an automatic failure, even if the problem was nothing more than a loose gas cap. By the way, don't bother trying to fool the inspection station by disconnecting the battery or using any other method to erase the trouble code and turn off the "check engine" light. Your vehicle's computer will let the inspection station know that its codes have been erased, and you'll just have to go back again.

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

Feb 15, 2012 | 2002 Toyota RAV4

1 Answer

I have a 2008 Chevy Avalanche with about 62,000 miles. Have a check engine light that OnStar diagnosed as PO442. Said I should wait 7 days and if still have check engine light, take it in for service. ...


you have a small leak in your evaporative emission system.the first thing to check is your gas cap.make sure to tighten it until it clicks three times.have the code cleared and see if the code comes back.

Jun 02, 2011 | Chevrolet Avalanche Cars & Trucks

1 Answer

Service engine soon light staying on


The "check engine" light is part of your car's so-called onboard diagnostics (OBD) system.

If the check-engine light comes on, here are some tips on what you should do:
  • Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating. These conditions mean you should pull over and shut off the engine as soon as you can find a safe place to do so. On some cars, a yellow "check engine" means investigate the problem, while a red "check engine" means stop right now.
  • Try tightening your gas cap. This often solves the problem. Keep in mind that it may take several trips before the light resets. Some vehicles have a separate indicator that warns of a loose gas cap before the condition sets off the "check engine" light.
  • Reduce speed and load. If the "check engine" light is blinking or you notice any serious performance problems, such as a loss of power, reduce your speed and try to reduce the load on the engine. For example, it would be a good idea to stop towing a trailer. Have the car checked as soon as possible to prevent expensive damage.
  • Contact OnStar, if available. If you have a 1997 or later General Motors vehicle equipped with OnStar and an active OnStar subscription, contact an advisor who can read the trouble code remotely and advise you about what to do.
  • Have the code read and the problem fixed. If you want to diagnose the malfunction yourself, you can buy a scan tool at most auto parts stores. Prices range from about $40 to several hundred, depending on the model and the features. The tools come with instructions on how to hook them up and decipher the codes. But unless you have a good knowledge of automotive diagnostics, you're probably better off taking the vehicle to a professional. Some automotive parts stores will read and interpret the code for you without charge. Unless there is an easy fix, they may simply refer you to a mechanic.
  • Don't go for a state emissions test. In a late-model car, an illuminated "check engine" light probably is a sure sign your car will fail the test. In some states, it's an automatic failure, even if the problem was nothing more than a loose gas cap. By the way, don't bother trying to fool the inspection station by disconnecting the battery or using any other method to erase the trouble code and turn off the "check engine" light. Your vehicle's computer will let the inspection station know that its codes have been erased, and you'll just have to go back again.

Hope helps.

Jun 25, 2010 | 2001 Saturn SL

5 Answers

Remote start does not work


henryj153, no offence guy, but if you dont know something, dont try and give advice. Now for the guy with the problem mattpointer:
These cars come with remote start as an option, and it is problably your BCM (Body Control Module), which is a $380 part, and the dealer has to install it, because of the programing... Here is a free way of checking if that is it. This part ties in certain vehicle systems, and for some reason when the BCM goes bad, so does the GPS, that is tied in with OnStar Check to see if your onstar can recieve GPS... press the blue OnStar button and ask them to locate you. If you dont have the service, they may want to start the service, just humor them as if you were interested, and ask them to locate you first, because you want to make sure the equiptment works. If they cant locate you, but you are able to use OnStar to contact them, most likely The BCM is bad, and thats what it is. This car has some great technology, but the intergration of this tech is in the BCM, and it goes bad.... so its a trip to the dealer for you my friend.

Jan 19, 2010 | 2008 Chevrolet Impala

1 Answer

2006 Saturn Relay Check Engine Light


PO455 is a large evaporative fuel leak. A bad fuel cap is ONE of the things that COULD be the problem. Fuel system cleaning only lightened your wallet. Reading your post is confusing. Did all this start AFTER the Valvoline Wallet Flushing? If so , they left something loose or disconnected. I would find a qualified repair shop to fix the problem, and if it has anything to do with what Valvoline did, make them pay the bill.

Nov 12, 2009 | 2006 Saturn Relay

1 Answer

Check light engine comes on ,just sometimes


Replace the gas cap with stant locking gas cap. The locking gas cap provides security and quality.

Aug 04, 2009 | 2001 Isuzu Rodeo

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