#214669 - 07/05/11 01:46 AM
flashing check engine light
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Junior Member
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Registered: 07/05/11
Posts: 6
Loc: colorado
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so i was driving down the highway and i floored it to go around someone and when i did my check engine light started to flash and my car lost power and began to start puttering and when i stopped and put it in park it died and then wouldnt turn on, it would crank over and puff out some white smoke out of the exhaust which smelled horrible but wouldnt fire, any ideas as to what it could be?
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#214670 - 07/05/11 01:53 AM
Re: flashing check engine light
[Re: chrispycreme69]
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Member
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Registered: 08/29/06
Posts: 74
Loc: Denver, CO
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Flashing SES light is multiple cylinder misfires.
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#214673 - 07/05/11 09:42 AM
Re: flashing check engine light
[Re: chrispycreme69]
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Junior Member
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Registered: 07/05/11
Posts: 6
Loc: colorado
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so what are the possible fixes/
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#214674 - 07/05/11 10:16 AM
Re: flashing check engine light
[Re: chrispycreme69]
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Member
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Registered: 12/15/05
Posts: 5286
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welcome to the site.
My L36 Camaro recently had the SES light flash, and it wasn't Random Multiple Misfires or anything else like that. I had tried to replace the wire then the plug. When those failed, I had replaced it with a coil pack I had laying around. That fixed the fault.
If you have access to your own tuner or code scanner, get the code first. The code will tell you what the real fault is. If you have a tuner, you can scan for misfires and see which one it is and how often and also scan for what the devil is making your car smoke that bad.
Be sure to check the oil. I had gone through a couple cars with head gasket issues, and the car acted very much like you're describing. If the oil resembles chocolate milk, park it and get ready for the gasket replacement.
_________________________
WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires. 98 L36/MM5 RaC
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#214679 - 07/05/11 01:49 PM
Re: flashing check engine light
[Re: chrispycreme69]
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Junior Member
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Registered: 07/05/11
Posts: 1
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my 03's ses light will flash at me at around 96mph for a little bit but won't throw a code...
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#214680 - 07/05/11 01:49 PM
Re: flashing check engine light
[Re: Richard Candelario]
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Member
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Registered: 08/29/06
Posts: 74
Loc: Denver, CO
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A flashing SES is triggered when a large number of misfires are detected.
Definitely check for any set trouble codes, might be multiple codes set, but don't start replacing parts based on whatever codes come up.
Spark is a common cause. If a trouble code is set, it might tell you which cylinder or cylinders are having the issue. A no-start condition makes me think it's not just a cylinder or two... I've had mine running on 3 cylinders before. Pull a spark plug out, attach the plug wire and ground the threads of the plug to the motor and crank it. You'll see/hear the spark each time it fires.
Maybe a LIM or head gasket issue (allowing coolant or oil into the combustion chamber). Pull spark plugs and look for contamination. Would be good to do a compression check while you've got the plugs removed.
Also possibly a failed fuel pressure regulator. Pull the vac line off the FPR and see if gas is leaking out the vac connector.
Another common cause of the symptoms described by the OP is a clogged CAT. Not sure any easy way to check this other than trying to start the car with the downpipe removed from the exhaust mani. It'll be LOUD as hell, don't try this test late at night!
Edited by DenverGT (07/05/11 02:01 PM)
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#214681 - 07/05/11 02:10 PM
Re: flashing check engine light
[Re: haze]
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Member
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Registered: 09/12/03
Posts: 14035
Loc: Fort Worth, Texas
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my 03's ses light will flash at me at around 96mph for a little bit but won't throw a code... If you put a code reader on the car I bet It would say P300. Once the light is triggered the PCM will hold that code if the problem does not reacur(sp?) in a given amount of cycles the code will go away.
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#214683 - 07/05/11 04:39 PM
Re: flashing check engine light
[Re: HercMan(Rob)]
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Member
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Registered: 12/15/05
Posts: 5286
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my 03's ses light will flash at me at around 96mph for a little bit but won't throw a code... reacur(sp?) reoccur. Also re-occur, but that is not as common of a usage.
_________________________
WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires. 98 L36/MM5 RaC
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#214693 - 07/05/11 08:51 PM
Re: flashing check engine light
[Re: chrispycreme69]
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Junior Member
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Registered: 07/05/11
Posts: 6
Loc: colorado
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well the cat is new as of january so i think im gonna check plugs and test the ignition coils
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#214708 - 07/06/11 09:43 AM
Re: flashing check engine light
[Re: chrispycreme69]
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Junior Member
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Registered: 07/05/11
Posts: 6
Loc: colorado
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im going to just have to wait until pay day
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#214714 - 07/06/11 10:22 AM
Re: flashing check engine light
[Re: chrispycreme69]
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Member
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Registered: 03/07/05
Posts: 5158
Loc: Southern KY
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Remember this, if you have a multiple cylinder misfire, think of things that affect all cylinders. Usually fuel or vacuum leak associated. Plugs and wire don't usually have an impact.
First two things I'd do is change the fuel filter, check the vacuum hoses around the engine, especially under the snout if you have an M90. And if it happened not long after getting gas, throw some water remover in the tank.
_________________________
'13 Mustang 3.7V6 - MT82 '00 GP SE (L67 Swap, XP, Headers, 3.25") '98 GTP, '01 Bonne
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#214752 - 07/07/11 10:42 AM
Re: flashing check engine light
[Re: chrispycreme69]
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Junior Member
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Registered: 07/05/11
Posts: 6
Loc: colorado
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well i had 3/4 tank of gas and i just have the 3.8, its not supercharged so where would the other vacuum lines be?
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#214812 - 07/08/11 01:02 PM
Re: flashing check engine light
[Re: chrispycreme69]
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Junior Member
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Registered: 07/05/11
Posts: 6
Loc: colorado
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so i just replaced all plugs wires and coils, and its fire and ran but it was blowing out alot of white smoke and i looked in the engine compartment while it was runningand there was white smoke coming from aroung the exhaust manifold so i shut it off, and now it wont fire.
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