2004 Toyota Prius Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Toyota Prius
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2004 Toyota Prius ProblemsRestriction of the hybrid battery cooling fan may cause illumination of the Check Engine Light
The hybrid battery cooling fan may become restricted, resulting in illumination of the Check Engine Light and an associated fault code p0A82. Our technicians tell us that keeping the cooling fan clear of debris will help keep this fault code from setting and also may prolong the life of the hybrid battery.
The Check Engine Light may illuminate with a fault code P1121 stored. It is commonly caused by a failed three way coolant control valve. Valve replacement is recommended if this occurs.
The center multi-function display may failure. This is commonly caused by poorly soldered internal connection. Our technicians tell us that these display panels can be successfully repaired or reconditioned by a shop specializing in such repairs.
2004 Toyota Prius QuestionsMy car is shaking i'v gotten mounts done still shaking tune up,oil changes,transmission flushed. can u help so that i can get my fiance to take it in for me. (1 answer)
What can I do to repair the problem?
And today Some type of pipe fell down on the road during driving but I picked that up. That pipe got rusty and looks an S shaped visually. Any ideas what that is?
2004 Toyota Prius RecallsThe Steering Intermediate Shaft May Wear Resulting in Loss of Steering
The affected vehicles have a steering intermediate extension shaft manufactured with metal splines that may have an insufficient hardness. Over time, the splines may wear and eventually fail resulting in a loss of steering ability, increasing the risk of a vehicle crash. Toyota dealers will inspect the extension shaft and replace if necessary.
During manufacturing, a scratch may have occurred inside of the electrically driven water (coolant) pump at the coil wire, resulting in corrosion. The corroded wire may break and the water pump could stop. The corroded coil wire could cause a short circuit in the pump resulting in a blown fuse, creating a stall-like condition of the hybrid system while the vehicle is being driven. This may increase the risk of a vehicle crash. Dealers will replace the electric water pump to correct this concern.
Toyota is recalling 2004–2010 models for an accelerator pedal that can get stuck in the wide open position due to problems with the floor mat. This may cause high vehicle speeds that make it difficult to stop the vehicle, which can result in a crash. In order to correct the problem, dealers will replace the pedals, alter the shape of the floor, and/or replace the floor mats. Toyota will also modify software on certain models to ensure that the brake overrides the accelerator in the event that both are applied.