Disconnect the negative battery cable. Allow the engine to cool down. Drain the cooling system to a level below the heater core fittings on the firewall.
Disconnect the heater hoses from the heater core tubes and plug hoses.
Remove the five nuts that secure the blower motor housing to the firewall.
Pull the housing away from the firewall. Disconnect any wire harness plugs which inhibit the housing.
Remove the remaining nuts which secure the heater air plenum (inside the passenger compartment) to the firewall.
In the passenger compartment, remove the instrument panel.
Pull the heater air plenum rearward from the firewall and remove it from the vehicle.
Remove the heater core from the heater air plenum.
Inspect all air seals on the components and firewall and replace any that are damaged.

To install:
Install the heater core into the air plenum chamber.
Position the heater air plenum against the firewall from the passenger compartment.
Under the hood, install the plenum retaining nuts.
Install the blower motor housing to the firewall and install the attaching nuts.
Connect the heater hoses to the heater core tubes at the dash panel in the engine compartment. Do not over-tighten the hose clamps.
Install the instrument panel.
Check the coolant level and add coolant as required. Connect the negative battery cable.
Start the engine and check the system for coolant leaks.
For more info. see this http://www.autozone.com/.../...rGuideContent.jsp

The radiator petcock valve seal is damaged. Check with the local auto parts stores for a petcock valve seal or a petcock valve replacement.
See this http://www.autopartswarehouse.com/.../...ator_petcock.html

Either it is not tight enough or the threads are crossed.They are often made of plastic and damaged easily.I would say try to give it a fraction more turn and if no good remove it when the engine is cold and have a closer look If the threads are crossed it might be possible to replace it or apply some kind of sealant on the threads.

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dealer forgot to reset the computer counter for service intervals, put another 2000 miles on it then return it And make sure the reset it this time

Sometimes it is the muffler, most times it is the front pipe. The exhaust system has to looked at to estimate it.

Multi-Diag Access J2534(careucar) has the function for air condition, such as Diagnosis of cooling electronic, Reading settings cooling circuit,Test servo actuators.

It needs to be recharged with refrigerant. Anti-freeze has nothing to do with the air cond. by the way.

There are reports of coolant 'gelling' when coolant types are mixed. Stick with the recommended coolant type for your vehicle. Check the vehicle owners manual for the recommended coolant (anti-freeze) type.

Another method to determine is - if you open the hood and look at the coolant reservoir, the color of the top of the cap is usually what you put in it.
For example, green on cap indicates conventional, green. Red or Orange color on cap, dexcool. Gold, or yellow is Ford and Chrysler.
So the best thing to do is look at your cap. If for some reason you have an after market cap on your reservoir, then use either Prestone, Peak, Valvoline (etc) muliti / universal coolant. It is made to mix with all types of coolant. I Flushed my radiator and just used that to refill the whole system.

Hello
Have you checked the starter relay?
Joe Boulay
Automotive Technician & Author
joe@joeboulay.com
www.joeboulay.com

Suggest you develop a flow chart ie.. from the battery to spark plugs, from the fuel pump to fuel injectors etc.

Erratic level float inside the fuel tank is the cause of this problem.
The fuel level sending unit is part of the fuel pump assembly.

Headlight switch directs current to the headlights and running lights to turn them on or off
When not replaced, headlights will run continually or not function, potentially causing premature headlight failure and/or safety issues.
Check it for any burning smells and replace it as necessary.