2017 Chevrolet Silverado 1500 LT

Denver, CO 80202

Engine: 5.3L EcoTec3 V8 (L83) • Domestic Fleet & Auto Care • Ref #SME-2017-che

Overcharge Alert

Quoted Estimate $890.00

Fair Published Standard $665.00

Identified Savings $225.00

Strata Trust Score 74/100

Itemized Line-Item Breakdown

Service Description	Quoted	Fair Standard	Audit Verdict
Starter Motor Assembly Replacement Book time: 1.5 hr (Quoted: 2.2 hr) • Labor rate: $175/hr Parts: ACDelco Professional Starter (12666795) - $295.00	$680.00 2.2 hrs labor	$477.50 1.5 hrs labor	+$122.50 labor overage + $80 parts markup
12V AGM Battery Replacement & BMS Registration Book time: 0.3 hr (Quoted: 0.5 hr) Parts: ACDelco Gold Group 48 AGM Battery - $222.50	$310.00 0.5 hrs labor	$247.50 0.3 hrs labor	+$35.00 labor overage

Billed Labor Exceeds Published Flat-Rate Guides

GM factory flat-rate guide and published industry standards specify 1.5 hours for starter replacement on 2014-2018 K2XX chassis trucks with the 5.3L V8. The shop quoted 2.2 hours.

Exact Questions to Ask Your Service Advisor:

"Published standard flat-rate book time for a 5.3L Silverado starter replacement is 1.5 hours. Your quote lists 2.2 hours. Can you adjust the labor time to standard book flat rate?"

"Is the replacement starter an ACDelco genuine OEM unit with lifetime warranty or an aftermarket remanufactured core?"

GM EcoTec3 Starter & Electrical System Overview

Expected Lifespan: Starter Motor: 80,000 - 110,000 Miles • AGM Battery: 36 - 60 Months

Technical Recommendations for this Procedure:

✓ EcoTec3 starters are situated adjacent to the passenger side exhaust manifold heat shield; always replace the heat shield clip to prevent thermal soak.
✓ Clean battery ground cable connections on the engine block and frame to prevent voltage drop.
✓ Perform Battery Sensor Module (BMS) relearn so the alternator charges at the proper AGM profile.

Common Failure Symptoms: Single click with no crank, slow sluggish cranking on freezing mornings, flickering interior cluster lights.

Regional / Climate Factor (Denver, CO): Colorado winter cold snaps severely diminish battery Cold Cranking Amps (CCA); testing battery conductance under load identifies weak cells before starter damage.

• Component Inspection Guide

Permanent Magnet Gear-Reduction (PMGR) Starter Motor

Failure Mechanism: Solenoid Contact Pitting & Bendix Drive Freewheeling

Under high thermal cranking conditions, copper solenoid plunger contacts pit and oxidize, causing intermittent clicking and failure to engage the engine flywheel ring gear.

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