i need help bringing my idle down

1998 CHEVROLET TAHOE
204,000 MILES
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TAHOEUGA
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i have a 98 tahoe it idles between 1100-2000 ive replaced the tps and idler controller even when i brake the rpms dont come down i think its a vacuum leak but im not sure where to look any ideas?
Feb 13, 2012 at 12:04 AM
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RASMATAZ
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Check all vacuum lines, TB area and intake manifold
Feb 13, 2012 at 12:08 AM