Ten problems related to engine and engine cooling have been reported for the 2005 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota 4Runner based on all problems reported for the 2005 4Runner.
When I first saw the pictures on the internet, I noticed that the front underside appeared to have rust issues. (frontal shot) I contacted that sales person and he blew me off when I requested photos of the underbody. After several attempts, he finally sent a couple of pictures. The pictures obviously did not show the major rust issues as I have provided. The pictures were carefully fabricated not to show the major rust issues. It was apparent that the vehicle was taken off the internet while they hid the rusty underbody by applying some coating. A short time later, the dealership reposted the vehicle on their website. The vehicle was not properly advertised as having this major rust issue. I asked the salesman if his family was driving the vehicle, would he feel safe. He replied, "absolutely". With this said, I decided to purchase the vehicle. Also, my signature is not on the "we owe". Also, the vehicle has an exhaust leak from the manifold area. It makes a loud ticking noise. This is going to cost approximately $1,500 to fix. The air conditioner is not blowing cold and either has a leak or in need of freon. This is another repair out of my pocket. This is what kind of pre-owned vehicle they sold me. This vehicle should have never been listed for sale.
The contact owns a 2005 Toyota 4runner. The contact stated while driving at an undisclosed speed, the radiator boiled over without warning. The contact stated that the failure was due to the head gasket. The contact called the local dealer however, the vehicle was not diagnosed or repaired. The manufacture was not contacted. The approximate failure mileage was 170,000.
The Toyota secondary air system has failed rendering my car without traction control. . . And other lights. There is no preventative measures for this part and Toyota used the exact same system on the tundra's and sequoia's with the same problem I'm having. This needs to be addressed as the repair for the system is roughly 4000. 00 almost half the cost of my car. . . Please make them fix this on all cars where the same system was used.
I'm a retired master mechanic turned aerospace engineer. On Aug 24, while my foot was on the brake, the engine revved to full throttle, squealing the rear tires. This event was clearly caused by a faulty electronic throttle control circuit. I shut off the truck. When I started it again, the situation was still there. I shut it off and waited 10 seconds, then started it and it idled normally. I concluded that there was a software glitch. This happened once before about two years ago. In both cases, my truck was luckily stopped in a parking lot with the transmission in drive.
The secondary air injection pump is sending error messages and the vehicle is now in limp mode. The vehicle will not go over 30mph.
Secondary air pump failure due to defective design. Toyota has acknowledged this as a defective installation on the sequoia and tundra models with an identical engine installation as the 4runner; but refuses to repair/retrofit the 4runner device. Result is loss of power which could result on vehicle accident.
2005 Toyota 4runner 4. 7l v8. "check engine" and vsc trac. Codes 1441, 1444 and 2440. Toyota knows they put a faulty secondary air injection system in the v8 engines for a number of years, and now they want $2200 to fix the problem. If the faulty valve sticks open, the vehicle will automatically go into "limp mode" with a maximum speed well below safe travel speeds on highways and interstates, creating a safety hazard for occupants and others on the road. Toyota did a recall on other models with the same engine, but nothing for the 4runner. This is a know issue with the v8 engine, and they are covering the repair for sequoias and tundras with the same engine.
2005 Toyota 4runner 4. 7l v8. "check engine" and vsc trac. Codes 1441, 1444 and 2440 vehicle went into limp mode on the highway and I was unable to accelerate about 20 mph on a 70 mph highway. Major safety issue. This is a known issue with the Toyota v8 but Toyota is not covering the 4runner but is covering the same engine part in the tundra. The mechanic knew exactly what the problem was and sees it all the time. Repair is $2,000 with no reimbursement from Toyota.
Stationary on startup - my 2005 Toyota has been rendered worthless because of a factory defect in the blower fan that only runs when cold starting the engine. It triggers the "limp home" mode in the vehicle which overrides transmission shifting and makes the vehicle unsafe to drive. The error code for this problem is p0418 secondary air injection system relay. This is a well-known problem and has occurred in many, many of the Toyota 4. 7 l engines in different vehicles. Toyota is aware of this defect in this/these part(s). This could not be predicted or prevented by servicing the vehicle at regular intervals, or any other method of typical consumer maintenance. The price for repair is in the $3-thousand dollar range. This was not a consumer neglect item. Toyota has a part in their engine that is defective, and they know that. I do not have that kind of money for this vehicle, so I use a computer to reset the code until this gets resolved, or the vehicle completely shuts down.
The contact owns a 2005 Toyota 4runner. The contact stated that while driving approximately 35 mph, the vehicle suddenly accelerated and failed to slow down when the brake pedal was depressed. The contact mentioned that after shifting in neutral the vehicle slowed down. The vehicle was then maneuvered to the side of the road where the engine was shut off. The vehicle failed to restart. The vehicle was towed to an independent mechanic and then to the dealer. The mechanic noticed metal fragments in the engine oil. The contact was made aware that the vehicle was included in recall NHTSA campaign id number: 11v113000 (vehicle speed control). However, the contact did not receive a recall notification prior to the failure. The vehicle had not been repaired. The manufacturer was notified of the problem. The approximate failure mileage was 120,000.