P0687 Chevrolet Auto Trouble Code
Parts or components should not be replaced with reference to only a P0687 Chevrolet DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.
When you fill your car with gas, the vapors in the tank get forced into a canister filled with activated charcoal. Also, on a hot day as the gas heats up and vaporizes, those same vapors push into the canister where they're stored. But the charcoal can only hold so much vapor. At some point it has to be emptied. The emptying process is called canister purge.
P0687 Chevrolet Possible Solution:
Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.
P0687 Chevrolet Description For All Models :
- Chevrolet Adventure
- Chevrolet Aerovette
- Chevrolet Agila
- Chevrolet Alero
- Chevrolet Apv
- Chevrolet Astra
- Chevrolet Astro
- Chevrolet Astrovette
- Chevrolet Avalanche
- Chevrolet Avalanche 2
- Chevrolet Aveo
- Chevrolet Aveo 2
- Chevrolet Bel Air
- Chevrolet Beretta
- Chevrolet Biscayne
- Chevrolet Blazer
- Chevrolet C-10
- Chevrolet California
- Chevrolet Camaro
- Chevrolet Camaro 5
- Chevrolet Camaro 6
- Chevrolet Caprice
- Chevrolet Caprice 8
- Chevrolet Captiva
- Chevrolet Cavalier
- Chevrolet Celebrity
- Chevrolet Celta
- Chevrolet Chevelle
- Chevrolet Chevette
- Chevrolet Cheyenne
- Chevrolet Citation
- Chevrolet Cobalt
- Chevrolet Colorado
- Chevrolet Comodoro
- Chevrolet Constantia
- Chevrolet Copper-cooled
- Chevrolet Corsa
- Chevrolet Corsica
- Chevrolet Corvair
- Chevrolet Corvette
- Chevrolet Corvette C4
- Chevrolet Corvette C5
- Chevrolet Corvette C6
- Chevrolet Cruze
- Chevrolet Deluxe
- Chevrolet Deville
- Chevrolet Diplomata
- Chevrolet Eight
- Chevrolet El Camino
- Chevrolet Epica
- Chevrolet Equinox
- Chevrolet Equinox 2
- Chevrolet Equinox 3
- Chevrolet Evanda
- Chevrolet Express
- Chevrolet Fb
- Chevrolet Four Ninety
- Chevrolet Grand Blazer
- Chevrolet Half Ton
- Chevrolet Hhr
- Chevrolet Impala
- Chevrolet Impala 9
- Chevrolet Intimidator
- Chevrolet Journey
- Chevrolet K-20
- Chevrolet Kalos
- Chevrolet Kingswood
- Chevrolet Kodiak
- Chevrolet Lacetti
- Chevrolet Lumina
- Chevrolet Malibu
- Chevrolet Malibu 6
- Chevrolet Malibu 7
- Chevrolet Master
- Chevrolet Matiz
- Chevrolet Metro
- Chevrolet Model
- Chevrolet Montana
- Chevrolet Montana 2
- Chevrolet Monte Carlo
- Chevrolet Monza
- Chevrolet Niva
- Chevrolet Nomad
- Chevrolet Nova
- Chevrolet Nubira
- Chevrolet Omega
- Chevrolet Opala
- Chevrolet Optra
- Chevrolet Orlando
- Chevrolet Pickup
- Chevrolet Prisma
- Chevrolet Prizm
- Chevrolet Relsamo
- Chevrolet Rezzo
- Chevrolet S-10
- Chevrolet Sabia
- Chevrolet Sail
- Chevrolet Silverado
- Chevrolet Silverado 2
- Chevrolet Silverado 3
- Chevrolet Sonic
- Chevrolet Spark
- Chevrolet Sprint
- Chevrolet Ss
- Chevrolet Ssr
- Chevrolet Suburban
- Chevrolet Superior
- Chevrolet Tahoe
- Chevrolet Tandem
- Chevrolet Touring
- Chevrolet Tracker
- Chevrolet Trailblazer
- Chevrolet Trailblazer 2
- Chevrolet Trans Sport
- Chevrolet Trax
- Chevrolet Triax
- Chevrolet Two-ten
- Chevrolet Uplander
- Chevrolet Utility
- Chevrolet Vectra
- Chevrolet Vega
- Chevrolet Venture
- Chevrolet Vivant
- Chevrolet Volt
- Chevrolet Volt 2
- Chevrolet Xp
- Chevrolet Zafira
P0687 Chevrolet Trouble Repair :
If your vehicle failed a P0687 Chevrolet test and the P0687 Chevrolet Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature.
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