Throttle Help
Thread Starter
Melting Slicks
Joined: Jun 2007
Posts: 3,251
Likes: 0
From: SF Bay Area California
Throttle Help
Lately my throttle has been hanging up around the 1200rpm mark when ever I use smooth gradual acceleration, but doesn't stick if I am a little more aggressive with it. Should I replace the spring at the throttle or just leave it alone and use a little more force on acceleration?
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
First, take the throttle body off and inspect and clean it with throttle body cleaner. Take the IAC out and clean it and the bore real good. After you put the tb back on, check the TPS voltage. It should be .54v closed throttle and >4v WOT, with a smooth increase in voltage as you slowly open the throttle plates.
Melting Slicks
Joined: Dec 2004
Posts: 2,954
Likes: 2
From: Obama=death for America
Not for nothing, but I've heard a lot of negative comments about the BBK. I guess it's possible that you got a defective one out of the box, but that's not very likely. If you put your old one back on and the problem disappears, you have your answer.
Thread Starter
Melting Slicks
Joined: Jun 2007
Posts: 3,251
Likes: 0
From: SF Bay Area California
Think I may have found the problem. There is a small kink in the cable. How hard is it to replace these cables?
Last edited by Cessnapilot89; Jul 15, 2007 at 03:02 AM. Reason: spelling error
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Team Owner
Joined: May 2002
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Use TB cleaner on the throttle body, it's less aggressive than brake cleaner, the oem TBs have a coating inside that the brake cleaner would remove.
Clean inside the bores, particularly around the throttle shaft and edges of the blades. Also remove the IAC idle air controller and clean the pintle and bore with Q tips.
Plan on needing a throttle body gasket and IAC gasket. These are usually reusuable, but the one on your car is probably ancient. There are two types of TB gaskets, make sure you use the correct one.