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sprinkles08, ASE Certified Technician
Category: Chevy
Satisfied Customers: 22830
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Second opinion] replaced the throttle body and accel pedal

Customer Question

Second opinion] replaced the throttle body and accel pedal but when my truck is in park the idle kicks up to 3000
JA: How many miles are on the car? What size is the engine?
Customer: its a silverado 5.3 vin J. i have 138k on it
JA: What year is your Silverado?
Customer: 2007
JA: Are you fixing your Silverado yourself? What have you tried so far?
Customer: yes. im a diesel tech for jewel osco's fleet. i had the engine power reduced modes going on for several weeks. the codes condemned the accel pedal and tps sensor. so i replaced the whole throttle body and seal, replaced the accel pedal and left the battery disconnected for 30 mins trying to reset the ecm.
JA: Anything else you want the mechanic to know before I connect you?
Customer: i dont believe so
Submitted: 7 months ago.
Category: Chevy
Expert:  sprinkles08 replied 7 months ago.

Hello and welcome to JustAnswer!

If the symptoms are the same after replacing these parts then odds are there was a wiring problem or possibly a PCM issue causing the issue rather than one of the components.

Do you have the P codes that are currently setting?

Customer: replied 7 months ago.
No codes have come active again after I cleared them initially and I didn't record them unfortunately.
Expert:  sprinkles08 replied 7 months ago.

Do you have an actual scan tool?
No warnings are displaying now?

Customer: replied 7 months ago.
i do. It'll tell the codes I just forgot to jot them down
Expert:  sprinkles08 replied 7 months ago.