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 > So Seafoam is good?

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path1

Wa State (wet side)

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Posted: 03/31/13 10:56pm Link  |  Quote  |  Print  |  Notify Moderator

Found many kudos on this board about Seafoam. So I said to myself must be good stuff, I'll try it some. 25 miles later check engine light is on. Low RPM shake and loss of power. Newer fuel filter only 3,000 miles ago. I'm thinking maybe a sensor of some type got fowled? 5.4 Ford 2005 well over 100,000 miles (maybe engine is not used to a cleaning?)
My code reader is packed somewhere in some unknown box(moved recently)
Do I even need a code reader for this? Can I flip the key switch so many times to get code in odomater. I must say though the genny really liked the stuff, ran smoothier.
Any help appreciated

* This post was edited 03/31/13 11:28pm by path1 *


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hershey

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Posted: 03/31/13 11:28pm Link  |  Quote  |  Print  |  Notify Moderator

Did you put it in the fuel or oil?
There was a recent thread where Seafoam was put in the crankcase of a BMW or perhaps different car. The before pictures were of a really dirty top end, really sludged up. The after the sludge was mostly gone and a obviously through cleaning had happened.
If you put it in the oil, you may have cleaned things up too well and the sludge is now concentrated and fouling things up.??? Just guessing.


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path1

Wa State (wet side)

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Posted: 03/31/13 11:31pm Link  |  Quote  |  Print  |  Notify Moderator

Added 1 pint to gas tank (32 gallon tank)about 1/2 full at time. So that is 1 pint to 16 gallons. What I added was within the directions on can.
I wonder if this matters...I put the Seafoam in last weekend and went on a maybe a 5 mile trip. Then it sat all week before I took it out today. Could that stuff settle in one spot and I'm pumping a straight dose to engine right now?

Old-Biscuit

Verde Valley

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Posted: 03/31/13 11:53pm Link  |  Quote  |  Print  |  Notify Moderator

It readily mixes with gasoline.

Worked great in generator which is a carbed engine and your 5.4 Ford isn't.

It did it's job......cleaned up gunk but you now have clogging injectors


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Dtaylor

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Posted: 04/01/13 12:05am Link  |  Quote  |  Print  |  Notify Moderator

I had the f-150 I had in the shop because it was running rough. They did a few things but could not find anything wrong. They dumped a can of seafoam into the gas tank. If I recall, the mix rate is supposed to be 1 oz seafoam to 5 gal of fuel. I only had a few gallons at the time. On the way home, it began to really run BAD! I stopped and added more gas and it began to run better. I continued adding it ever couple of fill ups until I sold it. Not sure if that is your problem but might want to try and see


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path1

Wa State (wet side)

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Posted: 04/01/13 12:22am Link  |  Quote  |  Print  |  Notify Moderator

Quote:

but you now have clogging injectors

How would I get them unclogged?

westend

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Posted: 04/01/13 02:07am Link  |  Quote  |  Print  |  Notify Moderator

Diagnosing a poorly running engine over the internet and coming up with a specific cause is a reach, IMO. One thing can be certain, the introduction of the Seafoam caused the engine to run poorly.
I have a 5.4 Ford and know that it does reset fuel calibration based on fuel type. Sometimes this will not happen and the engine management is relying on a different calibration. The Seafoam has probably knocked down the flashpoint of the fuel to the point that the engine systems can't allow for it. I would bet that filling the tank with Premium will bring the engine around to working order. It may take some run time and a few stop/starts.


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Posted: 04/01/13 05:08am Link  |  Quote  |  Print  |  Notify Moderator

Over 100000 5.4 CEL on all my units have been COP replacements. A simple code read will spit out that info. I no longer do one at a time and just get quotes on all 8 if Im keeping the unit cause I've never had one go without others following shortly...




Dave H M

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Posted: 04/01/13 07:26am Link  |  Quote  |  Print  |  Notify Moderator

Let us know what it was?

Yeah, I wish I could get all my diagnosis done on the keyboard. That would save some bucks.

just a thought, on the tricky stuff, I have found that the freebie diagnosis from places like autozone would not pick it up. Good place to start though since it is a freebie.

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Posted: 04/01/13 07:48am Link  |  Quote  |  Print  |  Notify Moderator

Exactly what happened to my E350 v10 after sea foam. The product seems to have broken up some crud and fowled the O2 sensors. So some times this stuff workers too good! Had to replace the sensor.

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