P1008 2015 Chevrolet Silverado Code - Engine Coolant Bypass Valve Command Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Engine Coolant Bypass Valve, Engine Coolant Bypass Valve harness is open or shorted, Engine Coolant Bypass Valve circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1008 2015 Chevrolet Silverado indicates Engine Coolant Bypass Valve Command Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Engine Coolant Bypass Valve, Engine Coolant Bypass Valve harness is open or shorted, Engine Coolant Bypass Valve circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1008 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1008 2015 Chevrolet Silverado?
- Faulty Engine Coolant Bypass Valve
- Engine Coolant Bypass Valve harness is open or shorted
- Engine Coolant Bypass Valve circuit poor electrical connection
How to Fix the DTC P1008 2015 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1008 2015 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1008 2015 Chevrolet Silverado Code
1. What does the OBDII code P1008 mean on a 2015 Chevrolet Silverado?
Code P1008 indicates an issue with the Engine Coolant Bypass Valve Command Signal, specifically that the message counter is incorrect or inconsistent.
2. What are the common symptoms of code P1008 in a 2015 Chevrolet Silverado?
Symptoms may include an illuminated check engine light, overheating issues, poor HVAC performance, or reduced engine efficiency.
3. What causes the P1008 code to appear on a 2015 Chevrolet Silverado?
Possible causes include a faulty engine coolant bypass valve, wiring issues, a malfunctioning PCM (Powertrain Control Module), or poor electrical connections.
4. How does the engine coolant bypass valve affect my Silverado?
The coolant bypass valve regulates coolant flow to maintain optimal engine temperature. A malfunction can lead to engine overheating or inefficient heating and cooling performance.
5. Can I drive my 2015 Chevrolet Silverado with the P1008 code active?
Driving with this code is not recommended because it can lead to engine overheating or damage if the coolant system isn't functioning properly.
6. How do I diagnose the P1008 code on my Silverado?
Use an OBDII scanner to confirm the code, inspect the coolant bypass valve and related wiring for damage, and check for proper communication between the valve and PCM.
7. What repairs are typically needed to fix code P1008?
Repairs may include replacing the engine coolant bypass valve, repairing or replacing damaged wiring, or reprogramming or replacing the PCM if necessary.
8. How much does it cost to fix the P1008 code on a 2015 Chevrolet Silverado?
Repair costs can vary, but replacing the coolant bypass valve typically costs $150–$300, while PCM repair or replacement could cost $500–$1,000 or more.
9. Can a faulty thermostat cause the P1008 code?
While a thermostat issue is not directly related to this code, it can exacerbate coolant system problems and should be inspected if overheating occurs.
10. Will clearing the P1008 code solve the problem?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
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