A rough idle and even an emissions inspection failure for high HC and CO can be caused by improperly adjusted valves. Also, exhaust valves may become to tight which can lead to valve failures. Our technicians tell us that regular valve adjustment inspections are a must.
Problems for specific Toyota Camry years:
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Most reported 1995 Toyota Camry problems
It is important to regularly check the valve clearance as the exhaust valves may become too tight. This will lead to valve failures, which are expensive to repair.
The Throttle Position Sensor can get out of adjustment due to wear in the throttle body or due to carbon build up. This will cause the idle timing to advance more than 30 degrees which will cause very high HC and NOx emissions. Conversely, the Throttle Position Sensors can wear out and not properly advance the timing which causes a lack of power and poor fuel economy.
At 125,000-150,000 miles, the Brake Master Cylinder may need replacing. When replacing the master cylinder, it is critical to adjust the brake pedal to master cylinder pushrod clearance or the brakes can drag and overheat.
After much research and replacing all the motor & transmission mounts I discovered the solution. "Exhaust Hanger Replacement." Wait till you see what Toyota is charging for these little babies. Essentially there are 5 hangers. Front, mid and front muffler hangers are all permanently attached to spindles and a small metal hanging chassis. Replacement is easy and can be done with just a socket wrench. The local dealer here charges $63 a piece (w...
A loss of power on the freeway may due to an internally leaking fuel pulsation dampener. This commonly occurs on higher mileage vehicles.
The head gaskets are prone to leaks in as little as 60,000 miles. When the head gasket is replaced, the knock sensor harness should be replaced as well, as it can be damaged by leaky head gaskets, resulting in a serious decrease in fuel efficiency or in long term engine damage.
After much investigation of temp sender, fuel injectors, and ignition parts, the problem was traced to the ECU. On replacement, the problem was fixed.