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alright im about 1000 miles away from my next oil change so i figured its time to seafoam the old 3.8. now just so i know what the hell im doing, you turn the engine on, then poor the seafoam into the vacuum line until the car stalls, wait ten minutes then turn the engine back on???? if this is true, where exactly is the vacuum line where i poor the stuff in?? thanx guys
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SLP CAI, RK Sport headers, P&Ped heads and intake, GT2 cam, Upgraded valvetrain, Z28 rear axle with 4.10s Tx Spd tune, Z06 rims, 2.5\" exhaust to flowmaster, 160* thermo, B&M ripper, upgraded ignition, rockford fosgate 12\" with sony xplode amp and HU. -
I entered this a few months back. Enter "seafoam" in the search category, and you'll have reading material for weeks.
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Seafoam is a cleaner goes into the throttle body through the vacuum line, and it cleans out the carbon inside the intake/engine and cat converter that builds up within time. The 3.8 engines have a vacuum line on the throttle body right in front of the IAC Sensor on the passenger side of the engine. Start the car, remove the vac line and pour about 1/2 of a can of seafoam into the throttle body section (the vacuum will suck the seafoam in). The car will then stall, and let the seafoam do it's stuff for about 5 minutes without the engine running. After the 5 minutes pass, start the car up and it'll smoke like hell for quite a few minutes...TRUST ME!
I felt a big difference in my throttle response after I did this, as most people do.
I do not have a 3.4, but I think you would pour the seafoam in through the brake booster vac line behind the master cylinder.
You shouldn't have any trouble with any computer sensors. The instructions on the bottle say it's oxygen sensor safe too.
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The vacuum line is down and to the left of the 3800 on the throttle body. Its got a 90 degree boot on it. Just start your car up, pop the line, start pouring til the car stalls or you've poured about 75% of the can in, then shut her down, wait 5-10 minutes and start it up and watch the smoke. I got a SES light when I did mine, but Autozone fixes that. ;)1997 Camaro RS, 3800II, Y87, A4, Red, 30th Anniversary, 145k, SLP CAI, Taylor Spiro Pro 8mm wires...Comment
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I used the brake booster line. If you don't know where that is, do a search and you'll find a bunch of stuff about it.Matt
1998 Mystic Teal Camaro M5
Whisper Lid, Pacesetter Headers, Catco Cat, Dynomax Super Turbo, B&M Shifter, BMR STB, LSD, P&P Intakes, GT2 Cam, Comp OE Lifters, 1.7 Roller Rockers, Pushrods, SSM Heads, DHP PowrTuner.Comment
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actually mine stalled a few times when i put seaform in through my brake booster line. Just make sure you use half of the seafoam in the bottle.1999 Firebird Black<br />A4 3.08 gears<br />Mods: Carbon Fiber Whisper Lid, Raised Air Box, K&N Air Filter, Direct Hits Ignition, Flowmaster American Thunder 3\", 160 Degree Hypertech Thermostat, SLP Fan Switch, 3\" High Flow Cat<br /><a href=\"http://www.cardomain.com/member_pages/view_page.pl?page_id=273903\" target=\"_blank\">My car on Cardomain</a>Comment
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