When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.
Problems for specific Toyota models:
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Most reported Toyota problems
A ticking noise may develop from the engine due to a cracked exhaust manifold. Damaged exhaust manifolds will require replacement to correct this issue.
The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.
My Solara has cracks throughout the entire dashboard. Toyota has been useless on this issue, the only issue, my car has
The power windows and mirrors stop working because of a problem with an electrical junction block—where power from the battery is distributed to that system.
Driving over bumps causes loud, annoying noises in the body of the car. If the noise is a groaning or creaking, it can be improved by lubricating the rubber joints in the suspension system. If the noise is a rattling sound, the problem is likely wear and tear on the upper mounting plate for one or more of the suspension struts.
The rear light wiring harness can break where it attaches to the trunk hinge. As a result, the reverse lights or the shift indicator may not work and the rear bulb fault indicator may stay on constantly. The harness can be repaired and does not have to be replaced.