Idles high in park?

Asked by Feb 17, 2014 at 08:39 PM about the 1999 Chevrolet Silverado 1500 3 Dr STD 4WD Extended Cab LB

Question type: Maintenance & Repair

My 1998 chevy Silverado idles high in park. Aprox. 1500 rpms. I keep getting
throttle position sensor code and Idle air control valve. I don't understand it.
Neither did part stores. What could it be?

1 Answer

9,355

Do you know someone with a scantool that can read live values. You need to read there actual values or test the sensors in their installed postion to see if they are giving you the right output. There should be adjustments on your TPS. I would try to adjust that sensor. I believe 0.2 volts is the traget for no throttle input but don't quote me on that.

Your Answer

Add photo

Related Questions

Search Chevrolet Silverado 1500 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 1,760
#2 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,490
#3 tenspeed
tenspeed
Reputation 1,420
View All

Related Models For Sale

Used GMC Sierra 1500
1,057 Great Deals out of 58,736 listings starting at $1,599
Used Ford F-150
3,218 Great Deals out of 205,090 listings starting at $1,779
Used Dodge Ram 1500
527 Great Deals out of 13,261 listings starting at $1,800
Used Toyota Tundra
643 Great Deals out of 27,763 listings starting at $3,200
Used Toyota Tacoma
712 Great Deals out of 32,123 listings starting at $2,000
Used Chevrolet Tahoe
854 Great Deals out of 28,369 listings starting at $1,700
Used Chevrolet Camaro
475 Great Deals out of 39,921 listings starting at $3,499
Used Ford F-250 Super Duty
476 Great Deals out of 41,914 listings starting at $1,999
Used Chevrolet Silverado 2500
5 Great Deals out of 286 listings starting at $3,995
Used Chevrolet C/K 1500
1,095 listings starting at $1,895

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
57 Great Deals out of 84,402 listings starting at $20,000
2016 Chevrolet Silverado 1500 For Sale
294 Great Deals out of 12,362 listings starting at $18,657
2015 Chevrolet Silverado 1500 For Sale
350 Great Deals out of 7,277 listings starting at $14,795
2014 Chevrolet Silverado 1500 For Sale
524 Great Deals out of 11,018 listings starting at $12,888
2013 Chevrolet Silverado 1500 For Sale
299 Great Deals out of 6,347 listings starting at $8,995