Tools Required
- One can of SeaFoam
- Pliers
- Funnel
- A friend (optional)
Make sure your car is in a well-ventilated area. Turn on your car and let it warm-up for 5 to 10 minutes. After you do this check your rpms to make sure they have dropped to normal level. Turn off your car.
Now that you have let your car warm up you need to disconnect your brake booster line. Use a pair of pliers to loosen the clamp before you pull it off. I found it easier to disconnect it directly from the intake manifold because of the tight confines of the area around my brake master cylinder.
Now that the clamp has been loosened you can pull the line off. It might be on kind of tight. I had to use a pair of pliers to get a better grip. Don’t use WD-40 or anything to loosen it up because it can get sucked into your engine. Also once you get the line loose don’t let it suck any dirt up.
I used a short piece of ½” tubing and a small funnel. Slowly pour 1/3 of the Sea Foam down the funnel. You will hear your car’s idle change during this time. A friend may come in handy to give it some throttle, but my car didn’t stall.
While you are pouring the Sea Foam in you might notice some thick exhaust coming out and the revs dropping almost to the point of stalling. This is perfectly normal and means it’s working. Not all car’s smoke and some won’t until you start driving a bit.
Once you have used 1/3 of the Sea Foam turn the car off and replace the brake booster line. Let it site for another 5 to 10 minutes. I added the rest of the SeaFoam to my crankcase (oil) and the rest in the fuel tank. Now start the car back up and take it for a spirited drive for 5 to 10 minutes. You will notice lots of exhaust coming out again. Once it has stopped coming out you are done. My car didn’t really smoke too much, only when I first started it. During the drive, it smoke for a few blocks, but that’s it. I maintain car car religiously, so maybe it wasn’t that dirty.
It is also recommended to do before an oil and spark plug change soon after because this procedure may cause both to get dirty.
I personally just disconnected the hose from the pcv valve to the IM and used the end from the PCV valve to suck the seafoam into the IM. If the car starts to bog down i would recommend backing off of pouring it in so it comes back up to normal idle.
I would recommend 1/3 into IM, 2/3 into oil and 1/2 to a full can into gas tank. I would do the oil when you do an oil change and gas tank when you fill up next at the pump.
