Knock Sensor labor time

1.7 hrtypical

1.5 to 2.3hours on most vehicles

$255typical labor at $150/hr

Knock Sensor takes about 1.7 hr of shop labor on a typical vehicle. Across 24,033 vehicle and engine combinations from 59 makes, most fall between 1.5 and 2.3 hours, and the longest take up to 8.3 hours. Cadillac, Jaguar and Mercedes-Benz vehicles tend to take the longest; MG, Renault and Daewoo the least. The exact time depends on your car, so look yours up below or pick it on the home page.

Shop labor rate

per hour

Enter a rate to see the labor cost of each job. Many US shops charge somewhere between $100 and $200 an hour.

At $150 an hour, labor for this job is usually $225 to $345, about $255 on a typical vehicle. Parts are extra.

How long it takes across all vehicles

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Hours, in half hour steps. Each bar is how many vehicle and engine combinations fall in that range.

Knock Sensor time on popular vehicles

2026 Ford F-150 2.7L V6 EcoBoost1.7 hr
2026 Ford Mustang 2.3L I4 EcoBoost1.7 hr
2026 Hyundai Santa Fe 2.5L I4 Turbo1.7 hr
2026 Toyota Camry 2.5L I4 Hybrid1.5 hr
2026 Ford Ranger 2.3L I4 EcoBoost1.7 hr
2026 Dodge Charger 3.0L twin-turbo Hurricane I6 (Standard Output), 420 hp – Charger Sixpack S.O.1.8 hr
2026 Ford F-250 6.7L V8 Power Stroke Diesel3.2 hr
2026 Hyundai Sonata 1.6L I4 Turbo1.7 hr
2024 Audi A4 2.0L I4 TFSI2.2 hr
2025 Subaru Legacy 2.4L Turbo H41.7 hr
2026 Audi A6 2.0L Turbo I42.2 hr
2025 Volvo S60 2.0L I4 Turbo+SC2.2 hr
2026 Porsche 911 3.0L Twin Turbo H62.2 hr
2025 Toyota 4Runner 2.4L Turbo I4 i-FORCE (T24A-FTS)1.5 hr
2026 Hyundai Elantra 1.6L I4 Turbo1.7 hr
2026 Ram 1500 5.7L V8 Hemi eTorque1.8 hr
2020 Ford Fusion 2.0L I4 EcoBoost2.3 hr
2026 Ford Explorer 2.3L I4 EcoBoost1.7 hr
2023 Chrysler 300 3.6L V6 Pentastar1.5 hr
2026 Jeep Grand Cherokee 3.6L V6 Pentastar1.5 hr
2022 Volkswagen Passat 2.0L I4 TDI 1501.7 hr
2026 Subaru Outback 2.4L H4 Turbo1.7 hr
2020 Chevrolet Impala 3.6L LGX V6 (305 hp)1.5 hr
2026 Ford Escape 2.5L I4 Hybrid1.5 hr
2026 Dodge Durango 6.2L V8 Supercharged2.1 hr
2026 Honda Civic 1.5L I4 Turbo1.7 hr
2026 Chevrolet Silverado 1500 3.0L I6 Duramax LZ01.7 hr
2026 Toyota Tacoma 2.4L Turbo I4 (T24A-FTS)1.5 hr
2026 Honda Accord 1.5L I4 Turbo1.7 hr
2026 Toyota RAV4 2.5L I4 PHEV A25A-FXS1.5 hr
2026 Honda CR-V 1.5L I4 Turbo L15B1.7 hr
2026 Jeep Wrangler 3.0L V6 EcoDiesel1.7 hr
2026 Ford Bronco 2.3L I4 EcoBoost1.7 hr
2026 Chevrolet Tahoe 3.0L I6 Duramax1.7 hr
2025 Nissan Altima 2.5L I4 (PR25DD, 188 hp)1.7 hr

Knock Sensor time by make

Make	Typical	Most vehicles	Vehicles
Cadillac	2.3 hr	2.0 to 2.3	520
Jaguar	2.3 hr	2.0 to 2.7	86
Mercedes-Benz	2.2 hr	2.0 to 2.7	1,600
BMW	2.2 hr	2.0 to 2.7	1,139
Audi	2.2 hr	2.0 to 2.7	704
Porsche	2.2 hr	2.0 to 2.7	525
Volvo	2.2 hr	2.0 to 2.2	400
Lincoln	2.2 hr	2.0 to 2.3	272
Land Rover	2.2 hr	2.0 to 2.7	174
Alfa Romeo	2.2 hr	2.0 to 2.2	63
Genesis	2.2 hr	2.0 to 4.0	48
Lexus	2.0 hr	2.0 to 2.3	442
Acura	2.0 hr	2.0 to 2.2	238
Infiniti	2.0 hr	2.0 to 2.3	229
Ford	1.8 hr	1.5 to 2.9	2,182
Chevrolet	1.8 hr	1.5 to 1.8	2,166
GMC	1.8 hr	1.5 to 2.1	1,040
Ram	1.8 hr	1.5 to 1.8	326
Hummer	1.8 hr	1.5 to 1.8	17
Mini	1.7 hr	1.5 to 1.7	133
Smart	1.7 hr	1.7 to 1.7	6
Dodge	1.5 hr	1.5 to 1.8	1,587
Toyota	1.5 hr	1.5 to 1.7	1,364
Volkswagen	1.5 hr	1.5 to 1.7	950
Nissan	1.5 hr	1.5 to 1.8	812
Hyundai	1.5 hr	1.5 to 1.7	640
Mazda	1.5 hr	1.5 to 1.7	599
Buick	1.5 hr	1.5 to 1.8	536
Pontiac	1.5 hr	1.5 to 1.8	498
Jeep	1.5 hr	1.5 to 1.8	493
Honda	1.5 hr	1.5 to 1.7	478
Chrysler	1.5 hr	1.5 to 1.8	469
Kia	1.5 hr	1.5 to 1.7	459
Subaru	1.5 hr	1.5 to 1.7	456
Mitsubishi	1.5 hr	1.5 to 1.7	413
Oldsmobile	1.5 hr	1.5 to 1.8	322
Fiat	1.5 hr	1.5 to 1.7	286
Mercury	1.5 hr	1.5 to 1.8	255
Plymouth	1.5 hr	1.5 to 1.8	254
Isuzu	1.5 hr	1.5 to 1.5	154
Suzuki	1.5 hr	1.5 to 1.7	151
Saturn	1.5 hr	1.5 to 1.5	108
Saab	1.5 hr	1.5 to 1.7	101
Morgan	1.5 hr	1.5 to 1.5	66
Scion	1.5 hr	1.5 to 1.5	43
Eagle	1.5 hr	1.5 to 1.5	41
AMC	1.5 hr	1.5 to 1.5	38
Peugeot	1.5 hr	1.5 to 1.5	38
Geo	1.5 hr	1.5 to 1.5	37
Daewoo	1.5 hr	1.5 to 1.5	30
Renault	1.5 hr	1.5 to 1.5	22
MG	1.5 hr	1.5 to 1.5	6

Other engine repairs

Head Gasket - Single12.5 hr typical
Intake Manifold Gasket4.1 hr typical
Oil Change0.4 hr typical
Valve Cover Gasket - Single1.7 hr typical
PCV Valve0.4 hr typical
Engine Mount - Rear1.8 hr typical
Fan Belt Replacement1.1 hr typical
Transmission Mount1.8 hr typical
Idler Pulley1.0 hr typical
Connecting Rod Bearings16.1 hr typical
Oil Separator/PCV1.7 hr typical
Camshaft R&R11.7 hr typical

Hours are what a professional technician takes with the right tools, the same way shops quote jobs. Figures come from the Open Labor Project database.