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Thinking of Seafoaming my GPGT

Toney Halbert

Toney Halbert

New member
So I've been hearing alot of talk about Seafoam doing all kinds of good for the car's engine and I'm thinking of running some through the vacuum line. I went out to buy some tonight after having autozone check my service engine light. The codes that came up were 141 and 305. The 305 related to a misfire in cylinder 5. But I'm confused as I JUST changed all my sparkplugs and fuel injector 5 less than a month ago, and my wires and coils about 2-3 months ago.

141 has something to do with the o2 sensor. I replaced the sensor with a brand new a year and half ago but I've heard that GPs have two of them...And I'm not sure which one I had changed as I wasn't working on my own car back then :-/

So as I was saying, my intention was to go in and buy a can of seafoam but the salesguy talked me into buying a bottle of Lucas injector cleaner...and that light is still on...so I've been reading a few tutorials about seafoam and i'm thinking of running it through the vacuum line. Can this damage the car in any way before I do this?
 


Just pull a vacuum line and rev the engine under the hood while it sucks it in. Won't hurt anything. Use a whole bottle and shut the engine off when your done. Let it sit for 10-15 min then start it back up.
 
So I used the seafoam a couple days ago and seems like nothings changed. The car still drives the same and the check engine light is still on :-/
I'm gonna try replacing the o2 sensor next week and see if that changes anything.
 


Seafoam isn't going to magically fix your car you have something wrong with it that needs addressed. Seafoam just cleans the inside out.
 
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