Seafoam = Check Engine Light - PerformanceTrucks.net Forums



Seafoam = Check Engine Light

Reply
 
Thread Tools Search this Thread
Old 08-27-2007, 11:08 PM   #1
TECH Apprentice
Thread Starter
 
fake_usa's Avatar
 
Join Date: Jan 2006
Location: Jersey
Posts: 340
Thanks: 0
Thanked 0 Times in 0 Posts
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 !!

Last edited by fake_usa; 08-28-2007 at 09:55 PM.
fake_usa is offline   Reply With Quote
Old 08-27-2007, 11:33 PM   #2
TECH Senior Member
iTrader: (10)
 
nonnieselman's Avatar
 
Join Date: Oct 2004
Location: Crystal Springs, MS
Posts: 14,071
Thanks: 0
Thanked 0 Times in 0 Posts
Default

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...
nonnieselman is offline   Reply With Quote
Old 08-28-2007, 02:34 AM   #3
Moderator
iTrader: (18)
 
TXsilverado's Avatar
 
Join Date: Jan 2005
Location: Humble Texas
Posts: 17,214
Thanked 3 Times in 3 Posts
Default

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

Last edited by TXsilverado; 08-28-2007 at 11:58 AM.
TXsilverado is offline   Reply With Quote
Old 08-28-2007, 04:53 AM   #4
TECH Senior Member
iTrader: (59)
 
Join Date: Apr 2003
Posts: 9,445
Thanks: 0
Thanked 0 Times in 0 Posts
Default

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.
Ferocity02 is offline   Reply With Quote
Old 08-28-2007, 09:18 AM   #5
TECH Apprentice
Thread Starter
 
fake_usa's Avatar
 
Join Date: Jan 2006
Location: Jersey
Posts: 340
Thanks: 0
Thanked 0 Times in 0 Posts
Default

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)
fake_usa is offline   Reply With Quote
Old 08-28-2007, 08:21 PM   #6
TECH Senior Member
iTrader: (1)
 
Flyer's Avatar
 
Join Date: Jan 2003
Location: Armpit of East TX
Posts: 9,343
Thanks: 0
Thanked 0 Times in 0 Posts
Default

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.
Flyer is offline   Reply With Quote
Old 08-28-2007, 09:09 PM   #7
TECH Apprentice
Thread Starter
 
fake_usa's Avatar
 
Join Date: Jan 2006
Location: Jersey
Posts: 340
Thanks: 0
Thanked 0 Times in 0 Posts
Default

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.
fake_usa is offline   Reply With Quote
Old 08-28-2007, 11:25 PM   #8
Teching In
 
Join Date: Dec 2006
Location: Clifton Park, NY
Posts: 35
Thanks: 0
Thanked 0 Times in 0 Posts
Default

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.
kdubbz is offline   Reply With Quote
Old 08-28-2007, 11:43 PM   #9
TECH Regular
 
blown3qtr's Avatar
 
Join Date: Aug 2006
Location: Allen, TX
Posts: 458
Thanks: 0
Thanked 0 Times in 0 Posts
Default

red stuff is probably from the seafoam. I've heard octane booster can do that too.
blown3qtr is offline   Reply With Quote
Old 08-29-2007, 12:21 AM   #10
Launching!
 
Join Date: Nov 2006
Location: Bay Area
Posts: 215
Thanks: 0
Thanked 0 Times in 0 Posts
Default

well theres your problem. you had bosch plugs in there!
LEballistic is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Couple issues with my grandpas 04 Sierra tweeder GM Engine & Exhaust Performance 3 09-19-2015 12:02 AM
Logging for converter slip, are the parameters correct? GMCtrk Tuning, Diagnostics, Electronics, and Wiring 38 08-09-2015 09:50 PM
03 ECSB Custom T56 Swap Ketis Trucks and SUV Classifieds 6 07-23-2015 01:37 PM
hesitation at full throttle, normal at partial throttle bsgiffor GMT 800 & Older GM General Discussion 1 07-19-2015 12:14 PM
4.8 tvs1900? hackrst FORCED INDUCTION 11 07-11-2015 12:17 PM


Tags
2003, 48l, 50, blinking, check, chevy, common, engine, give, hemi, light, plugs, problem, seafoam, service, sierra, silverado

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 03:30 AM.