Went to go Seafoam my car today (20v question)

buh_buh · 02-20-2009, 03:35 PM

and I couldn't find a proper vacuum source. I found a vacuum line coming out of the intake (or maybe intake manifold) and tried using that to suck some of the Seafoam out of the cannister, but tested it and was getting no suction. So I looked for another vacuum source, and found a T that hooks up near the throttle cable close to the firewall (Sorry my explanations suck, but this is the best I can do), and pulled that line and no vacuum again. Am I just using the wrong vacuum sources? I tried to look for the brake booster for about 5 minutes, but can't seem to locate it. Any help?

kinderutz · 02-21-2009, 08:40 AM

the intake manifold

squidix9 · 02-25-2009, 01:01 PM

a typical 20V problem where the T/X piece is cracked and thus leaking. Also depending on what year, one of the fittings has a restrictor in place. It's the one that runs down to the evap solenoid.

You "should" be able to pull full vacuum from the fitting on the left(closest to the battery). It's the fitting that goes to the diff lock solenoid in the rear.

Check the rubber lines for cracks and the plastic fittings again for cracks.

02-21-2009, 08:40 AM	#2
kinderutz AudiWorld Super User Garage is empty, add now Join Date: Jun 2005 Posts: 2,597	use fuel pressure regulator =vacuumm hose if nothing else is found although there should be some on the intake manifold __________________

02-25-2009, 01:01 PM	#3
squidix9 No Bozos! Garage is empty, add now Join Date: Mar 2002 Location: Cowlesville, NY.... Pop 1,067 Posts: 7,852	You may have found a typical 20V problem where the T/X piece is cracked and thus leaking. Also depending on what year, one of the fittings has a restrictor in place. It's the one that runs down to the evap solenoid. You "should" be able to pull full vacuum from the fitting on the left(closest to the battery). It's the fitting that goes to the diff lock solenoid in the rear. Check the rubber lines for cracks and the plastic fittings again for cracks. __________________ Email - Squid WNY Llama Rescue Group

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02-25-2009, 01:01 PM
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