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Old 08-27-2007, 10:08 PM   #1
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Angry Seafoam = Check Engine Light

I used this stuff on my wifes car and it seem like it worked ok.
So I figured I try it out in my truck.

Sucked a 1/2 can up thru the vacuum line, let engine sit for 10-15 minutes.
Took truck out for a 5 minute spin around town, and everything seemed ok, came home a parked it.
An hour later I had to run out to the store and when I started it up I notice a rough idle, then a few block from my house check engine light starts blinking then stays on steady.
Truck is idling very choppy now and the volt meter goes crazy if I put the air conditioner on when I'm at idle.

wtf is going on??

fouled plug? sensor?

Help !!
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Old 08-27-2007, 10:33 PM   #2
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Im guessing a fouled plug... most guys do say to grab an extra set of plugs before you try and Seafoam your engine... or just pull yours out and clean them up pretty good...
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Old 08-28-2007, 01:34 AM   #3
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yeah blinking service engine light=random multiple misfire. my guess is that you sucked up the foam too fast or you had a plug on its way out and the foam did it in. grab some tr55's for cheap and put em in
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Old 08-28-2007, 03:53 AM   #4
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Is it a check engine light or service engine soon light? They are very different. If it's the SES light, then I'm guessing like the others that you fouled a plug. Time for a plug change. No biggy, $20 and 20 minutes of your time.
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Old 08-28-2007, 08:18 AM   #5
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Drove car to work today, will pick plugs up at lunch and check ones in truck tonight after work.

Quote:
Is it a check engine light or service engine soon light?
That's a good question, now that I think about it im not quite sure, I'll have to check when I get home... (i didn't even know there was two, they never came on before)
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Old 08-28-2007, 07:21 PM   #6
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It would be the service engine light since that's the only one that's on the truck. I always thought they were one in the same though. I know cars have either one or the other. Some have a check gauge light.
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Old 08-28-2007, 08:09 PM   #7
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yeah it was a "Service Engine Soon" light.

Anyway the new plugs cured the problem.
Thanks for the advice.

Here are some pictures of the plugs that I pulled out if your interested.
What does that mean when the plugs have a red burn on them?

SIDE 1


SIDE 2


Close Up




I think these Bosch Platinum plugs are crap after having this happen, the electrode is like totally surrounded by the insulator, it does not stick out past it.

I ended up buying the Champion Platinum Power, they look like a much better design.


Oh yeah, I will not be using seafoam again.
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Old 08-28-2007, 10:25 PM   #8
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Seafoam is awsome. I used it on my truck when it had NGK TR55's and it dident foul them or anything, truck ran better after seafoaming. I guess some like it and some dont.
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Old 08-28-2007, 10:43 PM   #9
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red stuff is probably from the seafoam. I've heard octane booster can do that too.
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Old 08-28-2007, 11:21 PM   #10
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well theres your problem. you had bosch plugs in there!
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Old 08-28-2007, 11:21 PM
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2003, 48l, 50, blinking, check, chevy, common, engine, give, hemi, light, plugs, problem, seafoam, service, sierra, silverado


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