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08-15-2011, 06:12 AM | #1 | |
AF Newbie
Join Date: Oct 2004
Location: Windsor
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High RPM after start
When it happens, I stop and restart and all seems fine. I've scanned for codes and nothing shows.
When it does the RPM rises to 1500-2100 cause shifting to be hard. I'm leaning to replace the throttle position sensor but since no codes, I'm a bit confused. Could it be cleaned? Any suggestions? |
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08-15-2011, 07:54 AM | #2 | |
AF Regular
Join Date: Nov 2004
Location: Mechanicsville, Maryland
Posts: 256
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Re: High RPM after start
Check to see if a cruise control or throttle cable sticking holding the throttle blade open or is the throttle resting on the stop screw If the throttle blade is fully closed your IAC valve may sticking in its bore or just going bad. If you have never cleaned the throttle body and IAC valve and bore you should do it anyway. A vacuum leak should do it all the time but they should be checked for also. If you have secondary air injection the idle is high when first started but only to 1,100 - 1,300 rpm.
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08-17-2011, 08:03 PM | #3 | ||
AF Regular
Join Date: May 2007
Location: Onalaska, Wisconsin
Posts: 110
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Re: High RPM after start
Quote:
__________________
2005 Buick Le Sabre: Cooper CS4s, Fram Air Hog and Silverstar Ultras Low beams and highbeams. LED tails and marker lights , brake/turn signals (front turns too) coming soon, just need to install resistors in circuit. (Sold ) 1999 Intrigue: Fram Air Hog, Bridgestone Potenza G009(Love em, just a little road noise)Upgraded to G019 grids they were even better. Silverstar Low beams and highbeams. Led brake lights, all marker lights and third brake light. |
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