4 Common Complaints About 2005 Toyota 4Runners And How To Solve Them

Just because your 2005 Toyota 4Runner isn’t brand new doesn’t mean it’s not sturdy and reliable. However, as your 4Runner hits higher mileage, you may need to repair or replace a few parts. We’ve compiled a shortlist of 2005 4Runner parts that start giving owners trouble as the vehicle ages.

Find The OEM 4Runner Parts You Need Here

Starter Or Solenoid Contacts Corroded

Auto starter

Note: #6 is the solenoid, so begin checking for corrosion near it.

If your 4Runner starts intermittently or you’re just getting the ol’ “click-click-click,” the problem may be worn or corroded solenoid contacts within the starter.

According to 4Runner drivers who’ve run into this problem, it usually reveals itself suddenly. The vehicle has been running fine then just won’t start. If you’re experiencing a non-starting 4Runner, but the lights, radio, and other battery-operated components are working, something is most likely wrong with the starter. Look for OBD II code P0617 or U0120 if you suspect a starter issue.

Other items to check before concluding the vehicle has a faulty starter:

  • Battery terminals – if they are loose or corroded, it could be the problem
  • A faulty ignition switch
  • Battery – ensure it’s not really weak or dead

If the problem is within the starter, the cost for repair will depend on whether you need a new solenoid or a whole starter installed. This kind of repair will cost between $400-$600 at the shop. If you’re handy, you can just purchase the necessary part and fix it yourself.

Check Engine Light Due To Failed Charcoal Canister

Evap system

A rough idle, vehicle stability control light (VSC) and check engine light suddenly illuminating, and a strong gas odor have all been reported by 4Runner drivers who needed a vapor canister replacement. The worst reports have been about 4Runners that won’t pass emissions tests. If there’s a problem in the EVAP system the OBD code will be 044_. The blank could be one of several numbers.

The evaporative control (EVAP) system grabs any raw fuel pollution evaporating from the fuel storage system. The EVAP system purges these captured fuel vapors back into the combustion process. A brick of charcoal inside the charcoal canister prevents fuel vapors from escaping into the atmosphere.

Take it to a professional, and you’ll pay about $700-$800 in parts and labor. If you can replace it yourself, the cost is less than $400. Find the canister here.

Automatic Transmission May Not Shift Correctly At High Mileage

2005 toyo 4runner

Copyright Wikipedia

Once your 4Runner hits 125,000-150,000 miles, it may not shift correctly. If your auto transmission is forcing you to work hard to put it in reverse, refusing to shift until the vehicle is warm, or just responding slowly to shifts, you’ll need to investigate the problem. Sluggish or difficult gear shifting may be caused by one of two problems:

  • The throttle position sensor is out of adjustment
  • The shift solenoid needing to be replaced

If this small part of the emissions system is out of whack, you may notice other signs such as your check engine light illuminating, and/or your engine may misfire or jerk.

The good news is the transmission seldom needs to be replaced. Should you need to replace the whole transmission, it is cheaper to do it yourself. 

Check Engine Light Due To Failed Coolant Temperature Sensor

Check eng light

If your check engine light illuminates, the problem could be the temperature under the hood. An OBD code P0115 indicates a problem with the 4Runner's cooling system. If you see this code, it could mean your coolant temperature sensor is failing. Additional Toyota trouble codes that may indicate a coolant temperature sensor needs to be replaced are P0116 and P0125.

Other indicators of a failing or failed coolant temperature sensor include:

  • The engine’s cooling fan runs constantly
  • The engine is running rich and black smoke is coming from the exhaust
  • ·The car is hard starting or losing power

If you need to replace this part, you can find it here. Remember to replace it with a thread sealant to prevent any leaks.

When installing a coolant temperature sensor, you’ll want to make sure your coolant isn’t dirty or corroded. If so, you’ll need to replace all the coolant instead of only what you removed. It’s also important to clean the electrical connector before connecting to the new sensor.

Although your 2005 4Runner is a high-quality vehicle, maintenance and repair issues will arise. Olathe Toyota Parts Center has a large inventory of parts and knowledgeable staff to assist you.