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car shifting hard after seafoam


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Posted

I just seafoamed my 03 Gp using the brake booster line and it sucked up the whole can in about 3 seconds and killed the engine and shot the can off the booster line like a rocket... Then I started the car and let it smoke for a bit and took it for a spin and now its shifting hard and clinks into every gear including overdrive... What happened?

Posted

I didnt mean to! It just sucked it up instantly instead of slowly like on my friends 01 GA and his 06 G6...

Posted

I didnt mean to! It just sucked it up instantly instead of slowly like on my friends 01 GA and his 06 G6...

 

I always pour the correct amount into a separate cup...

Posted

FWIW: I usually only use a 1/3 to a 1/2 a can. The rest should go into the gas tank or save for next time. You need to be careful putting it in because pouring it in too fast can hydrolock the motor.

Posted

depending on how much cash is on my pocket is what determines wether i go the full can or half...

 

but goddamn, the whole thing in 3 seconds?

Posted

Is that even possible? :lol:

 

i'll work the math, how much is in the can?

Posted

with 16oz gone in 3 seconds, that comes out to .33204 cubic feet per minute....

 

yeah, it's possible if the vacuum line is big enough...

Posted

I used the brake booster line and after letting the car sit it isn't shifting bad at all and everything seems fine... Ill update again after another drive

Posted

did you start it with the booster already disconnected, or did you pull it while it was already running?

Posted

Had the booster disconnected then stick it in the bottle then dyseyed it and waited for it to die then connected it and started it and let it idle for a bit then drove it

Posted

maybe the ECM was throwing a fit due to the previous ignition cycles MAP reading... wouldn't be the first time i've seen it...

Posted

Next time, get a funnel and pour it in.

 

that's what i do.

 

I can't imagine why you would do it any other way, and you really don't ever need to use more than 1/2 of the can. :willynilly:

Posted

Yep I definitely learned a lesson... I did it again but used a funnel and got about 45 seconds of smoke

Posted

Yep I definitely learned a lesson... I did it again but used a funnel and got about 45 seconds of smoke

hopefully on a different car. too much seafoam will foul plugs

Posted

I never get smoke when I seafoam my monte lol

 

Every other car ive done it smokes like crazy lol

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