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what needs a tune up on my engine?

tcman49

tcman49

New member
It's a stock 3.8 v6 supercharged engine in a 2001 grand prix gtp.

Bought brand new back in 2001, haven't ever really had much problems with the engine until recently.

Sometimes under quick acceleration around town or after a long high speed drive on the expressway the engine will kind of sputter to the point of almost stalling, engine service light comes on as well.

After sitting in the garage over night, get back in the car the next morning and everything is fine, no light, no sputtering, no nothing.

Could it be clogged fuel filter, dirty spark plugs or some sensor not working properly?, any suggestions would be greatly appreciated, it tends to happen more at slower speeds, at highway speeds of 70-85mph, its fine.

Thanks
TC
 


I heard it works, but I am still scared to use it. I always fear putting things in my car that no one I know has ever used.
 
Well we have all used it...we put it in a Saturn SC2 from like the mid 90's that had almost 300k on it...it smoked like a b1tch for about 30 minutes...car ran like a race car compared to what it was before hand
 


I don't think there is one circumstance ever in the history of sea foam of it harming or damaging any engine other than the false stories people make up
 
Kinda a old thread but for us S/C guys dont we feed the sea foam through the middle vacum port on top of the S/C?
 
No feed it off the T in the LIM. That **** will eat the coating off the rotors as I know this from personal experience.

And yes Seafoam can cause an issue if the product is run through the system too quickly it can foul out a plug. I've seen it before. ;)

The best way to run it is through something that can control the flow of it. I use a tool that is specifically made for this.
 


txslow6 said:
No feed it off the T in the LIM. That **** will eat the coating off the rotors as I know this from personal experience.

And yes Seafoam can cause an issue if the product is run through the system too quickly it can foul out a plug. I've seen it before. ;)

The best way to run it is through something that can control the flow of it. I use a tool that is specifically made for this.
Click to expand...

This T you speak of.. I read around after I posted and saw the brake booster or the middle of the 3 ports on top of the S/C I could be wayyyy wrong
 
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