× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2007 Chevrolet Silverado 1500 Classic WT 4.3L MIL Lamp on
Posted to GM Driveability on 5/23/2011 10 Replies

Cold idle is 1,500 rpm's for about a minute or so and controls respond when shifting to "D" or "R" to maintain idle but after a minute or two of warm-up the rpm's elevate to a fixed 3,000 rpm's until shut down. When engine is shut down a large hissing is heard...

10 Replies Received (View Replies)

  Related Documents & Media  2007 Chevrolet Silverado 1500 Classic WT

 
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Silverado 1500 Classic WT

VIN 1GCEC14X77
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

$10
P0106Manifold Air Pressure Sensor Range/Performance
P0121Throttle Position Sensor Range/Performance
P0122Throttle Position Sensor Circuit Low Voltage
P0507Idle Speed Control System Higher Than Expected
Message Closed w/Summary

car Vehicle Data

2007 Chevrolet Silverado 1500 Classic WT

VIN 1GCEC14X77
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

$10
P0106Manifold Air Pressure Sensor Range/Performance
P0121Throttle Position Sensor Range/Performance
P0122Throttle Position Sensor Circuit Low Voltage
P0507Idle Speed Control System Higher Than Expected