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Home/Cars/Toyota/Corolla/E140 (2006-2013)/my Toyota Corolla E140 (2006-2013) won’t start in cold weather what could it be

my Toyota Corolla E140 (2006-2013) won’t start in cold weather what could it be

Toyota Corolla E140 (2006-2013)

Severity: highDifficulty: medium1-3 hours
4 min read
607 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix cold weather no-start issues in the 2006-2013 Toyota Corolla E140. Step-by-step guide with diagnostic procedures and repair instructions.

Component
Electrical
Repair Time
1-3 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical components.
  • ⚠Allow the engine to cool before working near the cooling system.

Symptoms

  • •Engine cranks but does not start
  • •Check engine light illuminated
  • •Weak or slow cranking sound
  • •Battery warning light on the dashboard
  • •Possible fuel smell near the engine compartment
  • •Difficulty starting after prolonged exposure to cold temperatures

Diagnostic Steps

  1. 1Check the battery voltage using a multimeter; ensure it is above 12.4 volts.
  2. 2Inspect battery terminals for corrosion and ensure tight connections.
  3. 3Scan the vehicle's computer system for any stored error codes using an OBD-II scanner.
  4. 4Test the starter operation by bypassing the ignition switch.
  5. 5Check fuel pressure with a fuel pressure gauge to ensure proper delivery.
  6. 6Inspect the engine coolant temperature sensor for proper operation.
  7. 7Verify the integrity of the ignition system components, including spark plugs and ignition coils.

Solution

Solution

1. Preparation

  • Gather tools: OBD-II scanner, multimeter, fuel pressure gauge, basic hand tools (sockets, wrenches), and safety gloves.
  • Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Battery Inspection and Replacement

  • Inspect Battery Condition

    • Disconnect the negative terminal first, followed by the positive terminal.
    • Clean any corrosion from battery terminals using a wire brush.
    • Reconnect terminals and ensure they are tight.
  • Test Battery Voltage

    • If the voltage is below 12.4 volts, consider charging the battery or replacing it if it fails to hold a charge.

3. Fuel System Check

  • Check Fuel Pressure
    • Locate the fuel pressure test port on the fuel rail.
    • Attach the fuel pressure gauge and turn the ignition to the 'ON' position (do not start).
    • Observe the fuel pressure reading; it should be within the manufacturer’s specified range (typically around 40-50 psi for most Corollas). If low, check the fuel pump and filter.

4. Ignition System Check

  • Inspect Spark Plugs and Coils
    • Remove the spark plug wires or coils to access the spark plugs.
    • Inspect spark plugs for wear and carbon buildup; replace if necessary.
    • Test ignition coils with a multimeter; replace any that are out of specification.

5. Replace Engine Coolant Temperature Sensor (if faulty)

  • Remove and Replace Sensor
    • Locate the engine coolant temperature sensor (usually near the thermostat housing).
    • Disconnect the electrical connector and remove the sensor using the appropriate socket.
    • Install the new sensor, ensuring a proper seal with Teflon tape if required.
    • Reconnect the electrical connector.

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
  • Fuel pressure gauge
  • Basic hand tools (sockets, wrenches)
  • Wire brush for battery terminals

Parts Required

  • New battery (if found faulty)
  • Fuel filter (if fuel pressure is low)
  • Spark plugs (if worn)
  • Ignition coils (if faulty)
  • Engine coolant temperature sensor (if defective)

Additional Information

Component

Electrical

Repair Time

1-3 hours

Difficulty

medium

Severity

high

Tools

5 items

Parts

5 items

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