When it leaks.
I anwered this question Look at post ... "Where is Expansion valve located on 2003 Yukon Denali XL"
How to change a starter on a Toyota Camry LE 2003 4cyider.
The 2003 Frontier 3.3L has an expansions valve, its part of the evaporator.
03 camry 4 cylider has a timing chain a 03 v6 camry hmilesas a belt and you change it every 90,000
The expansion valve is located on the rear evaporator core, typically in a casing located under one of the rear interior trim panels.
I think the only way to can adjust valves on Toyota engines is to replace them.
The expansion valve is located inside the accumulator/dryer. It does not have a separate expansion valve like other cars. The PT Cruiser is classified by Chrysler as a Truck (probably because it gets such poor gas mileage - 18mpg city for a 4 cylinder), not a car. Trucks usually have an accumulator or a liquid line. If you believe the problem to be an expansion valve, replace the dryer.
The 2003 Toyota Camry has 16 valves.
were and how do you change a PVC valve on a Chevy avalance
It is on the evaporator, inside the vehicle, under the trim on the right rear.
The 2003 Toyota Camry is a gas-powered vehicle.