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2003 Chevrolet Silverado 1500 HD LS 6.0L MIL Lamp on
Posted to GM Driveability on 1/10/2006 4 Replies

I have an '03 Chevy Heay duty half with a 6.0 in it . Codes p0120a and p2135a. I have already reaired several wires at the throttle body connector. The problem is very intermitant. I am a former GM tech and have never replaced a throttle body with this problem...

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  Related Documents & Media  2003 Chevrolet Silverado 1500 HD LS

 
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car Vehicle Data

2003 Chevrolet Silverado 1500 HD LS

VIN 1FMZV62E55
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

120Athrottle position sensor 1circuit
2135throttel position sensor 1and 2 correlation
Message Closed

car Vehicle Data

2003 Chevrolet Silverado 1500 HD LS

VIN 1FMZV62E55
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

120Athrottle position sensor 1circuit
2135throttel position sensor 1and 2 correlation