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2003 silverado 6.0. Throttle body replaced,plug replaced and

Customer Question
throttle pedal replaced. Still recieving...
2003 silverado 6.0. Throttle body replaced,plug replaced and throttle pedal replaced. Still recieving intermitent 'reduce power' error. What next??
Submitted: 1 year ago.Category: Chevy
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Answered in 7 minutes by:
12/2/2015
Chevy Mechanic: Greg Jensen,
 replied 1 year ago
Greg Jensen
Category: Chevy
Satisfied Customers: 16
Experience: Master Automotive Technician at Blade Chevrolet
Verified

HI there my name is***** have seen this issue alot and here the same symptom your talking about. The best fix I know is too get some good TXL wire. and build a new harness end to end with new gm terminals and gm crimp tool and solder the crimps. what typically causes the issue is a slight terminal tension issue or terminal fretting. which any slight resistance or correlation voltage changes you get with set reduced power. you could try doing a terminal tens test at all connectors but what I have learned from talking to gm engineers through technical assistance is the seperate well built harness is the best option. if you wanna try a shotgun patch before all that work apply dielectric grease to the ecm connectors and the app connector and throttle body connector.

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