P2635 Dodge Code - Fuel Pump Flow Performance
Quick Answer
After the vehicle has been powered Off for at least 2 min and the ignition is turned On, the Engine Control Module (ECM) sends a signal via the fuel pump primary relay circuit to the fuel pump driver control module. Common causes include Faulty Fuel Pump, Fuel Pump harness is open or shorted, Fuel Pump 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
- P2635 Dodge indicates Fuel Pump Flow Performance.
- Common causes
- Common causes include Faulty Fuel Pump, Fuel Pump harness is open or shorted, Fuel Pump 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 P2635 Dodge Description
received from the ECM containing the desired fuel pump speed. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the actual fuel pressure is not within 40 kPa (5.8 PSI) of the commanded fuel pressure for greater than 30 s.
What are the Possible Causes of the DTC P2635 Dodge?
- Faulty Fuel Pump
- Fuel Pump harness is open or shorted
- Fuel Pump circuit poor electrical connection
- Faulty Fuel Pump Control Module (if applicable)
How to Fix the DTC P2635 Dodge?
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 P2635 Dodge 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 P2635 Dodge Code
1. What does the OBDII code P2635 mean for a Dodge vehicle?
P2635 indicates a "Fuel Pump Flow Performance" issue, meaning the fuel pump isn't delivering the expected fuel flow needed for proper engine operation.
2. What are the common symptoms of the P2635 code in a Dodge?
Symptoms include poor engine performance, difficulty starting, stalling, reduced fuel efficiency, and an illuminated check engine light.
3. What causes the P2635 code to appear?
Common causes include a failing fuel pump, clogged fuel filter, faulty fuel pressure regulator, electrical issues in the fuel pump circuit, or contaminated fuel.
4. Can a dirty fuel filter trigger the P2635 code?
Yes, a clogged or dirty fuel filter can restrict fuel flow and cause the P2635 code to set.
5. How do you diagnose the P2635 code on a Dodge?
Diagnosis involves checking the fuel pressure, inspecting the fuel pump and its electrical connections, examining the fuel filter, and scanning for any additional related codes.
6. Is it safe to drive with the P2635 code present?
Driving with this code is not recommended as it can lead to further engine damage or cause the vehicle to stall unexpectedly.
7. How do you fix the P2635 code on a Dodge?
Repairs may include replacing a faulty fuel pump, cleaning or replacing the fuel filter, repairing electrical wiring, or draining and refilling contaminated fuel.
8. Can bad fuel cause the P2635 code?
Yes, contaminated fuel can clog the fuel system and lead to inadequate fuel pump performance, triggering the P2635 code.
9. How much does it cost to fix the P2635 code?
Repair costs vary but typically range from $300 to $1,000, depending on whether the fuel pump, fuel filter, or other components need replacement.
10. Will clearing the P2635 code solve the problem?
Clearing the code without addressing the underlying issue will not solve the problem, and the code is likely to return.
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