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why does my Honda CR-V's engine rev high when in park - Honda CR-V
Home/Cars/Honda/CR-V/Fifth Generation (2017-2022)/why does my Honda CR-V's engine rev high when in park

why does my Honda CR-V's engine rev high when in park

Honda CR-V Fifth Generation (2017-2022)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
527 words

Problem Statement

Learn how to diagnose and fix high engine RPM issues in Honda CR-V. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the engine to cool before inspecting any components.

Symptoms

  • •Engine RPM fluctuates or stays elevated while in park
  • •Possible check engine light illumination
  • •Rough idling when shifted to drive or reverse
  • •Increased fuel consumption
  • •Unusual engine noises (e.g., hissing or whistling)

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II scanner
  • •Multimeter
  • •Smoke machine or carburetor cleaner

Parts Required

  • •Throttle position sensor (if faulty)
  • •Idle air control valve (if faulty)
  • •Air filter

Additional Information

Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
3 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is off.
  • Disconnect the negative battery terminal to avoid any electrical issues.
2. Check Throttle Position Sensor (TPS)
  • Tools Required: Multimeter
  • Reconnect the battery and start the engine.
  • Use the multimeter to measure the voltage at the TPS connector while moving the throttle.
  • If the readings are outside the manufacturer's specifications, replace the TPS.
3. Inspect for Vacuum Leaks
  • Tools Required: Smoke machine or carburetor cleaner
  • Start the engine and use a smoke machine to introduce smoke around the intake manifold.
  • If smoke escapes from any areas, locate and replace the faulty vacuum hoses or intake gaskets.
4. Test Idle Air Control Valve (IAC)
  • Tools Required: Multimeter
  • Disconnect the IAC connector and ohm test the valve according to the service manual specifications.
  • If the IAC is faulty, remove it and replace it with a new unit.
5. Replace Air Filter
  • Tools Required: None
  • Open the air filter housing and remove the old air filter.
  • Install a new OEM or quality aftermarket air filter, ensuring it fits snugly.
6. Reconnect Battery and Final Check
  • Reconnect the negative battery terminal.
  • Start the engine and let it idle to see if the high revs have corrected.