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drives4x4
New User
Dec 20, 2012, 9:18 PM
Post #1 of 5
(1622 views)
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I have a 2001 blazer 4x4 that had begun to have rpm drop when put into drive. Drops to about 200 and stalls. This problem is intermittent . What should I check? Thanks.
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re-tired
Veteran
/ Moderator
Dec 20, 2012, 9:45 PM
Post #2 of 5
(1599 views)
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start by cleaning the throttle plate and IAC. LIFE'S SHORT GO FISH
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 21, 2012, 4:04 AM
Post #3 of 5
(1561 views)
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Let me elaborate a little You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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drives4x4
New User
Dec 22, 2012, 11:43 PM
Post #5 of 5
(1527 views)
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GOING TO TRY THIS! Thanks.
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