Chevrolet Vehicle Parts & Accessories - Page 8 - Recent Questions, Troubleshooting & Support

You need to put a pressure bleeder on the system and bleed the air from it. The pressure bleeder will force the air from the system and lines when you open the bleeder valve.

Air in the system

Sounds like the solenoid is not engaging. I would pull the starter and change the solenoid on the top of the starter. Be sure to disconnect the battery cable before working to remove the starter. Hope this helps.

The code is: P2000 NOx Trap Efficiency Below Threshold Bank1 and I do not know what that is unless it has something to do with the oxygen supply to the engine. Sorry I am not much help.

check the vac line from manifold to trans

The heater core is located in the bottom half of the duct work. If you remove the screws from the bottom of the duct you will see the heater core the core on the right by the door is the ac or evap. core for the air conditioner.

sounds like the alternator is not putting out. If you start the car and remove the battery cable and the engine shuts off then the alternator is bad and you need to change it.

take the screws out of the arm and take it down.

They just unbolt at the brake caliper and a push in plug up the wire.

If it's EFI check the diaphragm at the end of the fuel rail is not damaged

Try getting hold of a work shop manual and that should explain how to repair the problem.

To start you need to check and make sure the battery is good and fully charged. Then you need to clean the battery cable and make sure there is no oil or grim around the bolt if it is a side mounted battery. If the battery has the post on the top then you need to clean the battery post and the take a knife and scrap the inside of the cables. Make sure the heads on the cables you are attaching to the battery doesn't have rotted or broken wires an be sure your ground wire at the frame is clean.

There may be a plug puller out there but if so I am not aware of it. I suggest you take a sharp punch and drive it through the center of the plug and pry it out or you might be able to catch an inside edge and then pry it out. Be careful not to score the engine block wall where the new plug will go or else the new plug will leak.

You may need to replace the fan motor but before you do check and make sure you don't have a loose wire going to the fan motor. You might be loosing power to the fan motor. Is the fan motor making noise before it stops. Chev are famous for having the bearing on the fan motor going out and the fan will clatter against the fan motor housing. If you need to change the motor just remove the wire to the motor and pull the beauty cover off then you can remove the holding screws and put your new motor in. Be sure to remove the battery cable to ensure you don't short something out during the process and burn the wiring.

A code P0304 may mean that one or more of the following has happened: Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter(s) Running out of fuel Poor compression Defective computer If there are. no symptoms, reset code and see if it comes back

More information needed please.

low coolant a bad sensor ground, or sensor a bad guage a bad instrument voltage regulator an erratic sticky thermostat a very bumpy washboard road

check everything else, I don't believe it has one

you have changed parts without knowing what the problem is have the fault codes read first to get the area and sensors causing the problem I t may be low fuel pressure from a bad pump,blocked filters or injectors that is the real cause of the problem

It means that the number two cylinder misfired, you can disconnect the negative battery cable and wait a couple minutes and reconnect and that will clear the computer and should make check engine light turn off..a misfire can be a one time occurance,bbut if you reset the computer and drive a few days and the code appears again then there is a problem with the firing on the number two cylinder. With it being an 04 model, I would check the spark plugs first and also the plug wires. If the wires are original they most likely need replacement. If the vehicle is not running rough then the plugs and or plug wires is the most likely cause of the code. If you have any other questions please let me know.