4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Help, my Stang is sick!!

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Old 05-19-2007, 02:46 AM
  #21  
svt_97cobra
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Default RE: Help, my Stang is sick!!

Thats what i would do, I would just run the old gas through and fill up with new gas. Your car probablythinks that there issomthing in there thats not supposed to be, and thats the reason its acting like that. I'm not saying I think cars can think (have a brain) but the computer is probably telling the car that.
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Old 05-19-2007, 02:51 AM
  #22  
E714FEVER
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Default RE: Help, my Stang is sick!!

I bought a can of that stuff one time but was scared to use it. I think if you change your oil regularlyand do a good tune up every year that crap is completly unnessary. O yea so I put it in my work van instead now it runs like crap!!!!!!!!!
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Old 05-19-2007, 03:10 AM
  #23  
cliffyk
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Default RE: Help, my Stang is sick!!

The only "fuel problem" that would cause one cylinder to consistently misfire would be a bad injector and/or the injector control circuit--I'd pull the #4 plug and see what's up. [/align][/align]Regarding Seafom, ontheir website they list "common reasons" to use Seafoam, not one of which is "my car ran like a charm. Absolutely no sputtering or backfiring at all." [/align][/align]Inthe last40 years I've seen Seafoamcause at least as many problems as it allegedly cures. It's only valid use is to try to eek a bit more life out of very poorly maintained gunked-up or varnished-up engines that really should be torn down and cleaned properly--I've never used it because I've never owned an engine that was that bad off, and we routinely run our cars up to 200k to 250k miles.[/align][/align]As you have found, there is no reason to run it through a properly running engine.[/align]
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Old 05-19-2007, 07:33 PM
  #24  
sa96vertgt
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Default RE: Help, my Stang is sick!!

Yeah, I should have left well enough alone. That stinks, I hope this clears up soon. It's making me nervous. Anyhow, I've learned my lesson now! NO MORE SEAFOAM!!!
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Old 05-19-2007, 10:54 PM
  #25  
cahtr6
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Default RE: Help, my Stang is sick!!

That stuff has to be hard on O2 sensors as well as spark plugs. I would never use it
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Old 05-21-2007, 02:41 PM
  #26  
sa96vertgt
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Default RE: Help, my Stang is sick!!

News flash!!! I bought me some new plugs/wires and installed them yesterday. My car runs like a charm now! That Seafoam junk will never go in my car again! Lesson learned. Thanksfor your help!
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Old 05-21-2007, 02:59 PM
  #27  
cliffyk
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Default RE: Help, my Stang is sick!!

Great news!!![/align][/align]Happy Trails...[/align]
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Old 05-21-2007, 04:39 PM
  #28  
undecided.steve
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Default RE: Help, my Stang is sick!!

ORIGINAL: cahtr6

That stuff has to be hard on O2 sensors as well as spark plugs. I would never use it
+1
Common sense says that anything that is strong enough to give your motor a complete enema is going to take *some* toll on the motor and it's components.

FWIW stuff like Seafoam, GM Top Engine Cleaner and other carbon deposit removers should be used as a last resort only.
Not on a regular basis and certainly not on a motor that is running fine.

Regular oil/filter changes with quality products and a good fuel will go a long way toward keeping a motor clean.

Seafoam has many satisfied customers and so forth but I wouldn't touch the stuff unless I had exhausted all other means first.
IOW a good tune up.



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