Question about 1994 Chrysler Concorde
1 .Starting the Job of fuel Injector Replacement
B4 u begin u need to think about safety. Always keep fire safety as u r working with fuel. need a eye protection. Even if u've released the pressure in the fuel injection system, there could be some fuel flying when u start disconnecting high pressure lines and removing injectors.
· Be sure to follow the procedure for relieving the fuel system pressure.
· Look over ur car's injection system. Some systems r easily accessible n others r practically buried. Plan ur attack so ur job can be organized
· It's a good idea to get a fuel injector puller if u r removing fuel injectors. There are other ways to do it, but u risk damaging expensive fuel injection components.
2. Disconnecting the Fuel Rail
If ur fuel injection system has a fuel rail to deliver fuel to the fuel injectors, u will hv to remove this b4 u r able to remove the injectors. This is an easy job. First, disconnect the main fuel line at the end of the rail. There may be an additional line at the other end, so remove that one, too. The fuel rail is help in place by screws or bolts, depending on ur car's setup. Remove these screws or bolts. If ur wiring travels over the top of the rail, see the next step to disconnect the wiring first. With everything disconnected from the rail, pull it away from the fuel injectors. Most fuel rails r just pressed onto the injector tops, once you've removed the hold down screws or bolts it should pull away.
3.Disconnecting the Fuel Injectors If ur car uses a fuel rail to deliver fuel to the injectors, u removed it in the previous step. If u don't hv a fuel rail, you'll need to remove a fuel line from the top of each injector. It's just as easy to remove, just do it carefully.
With the fuel delivery out of the way, you're ready to disconnect the fuel injectors. Each injector will hv a plug at the top (or on the side near the top) that connects to the wiring harness. Most fuel injector wiring plugs r held securely in place by a springy wire . To remove this wire, just insert a flat head screwdriver in the space between the spring and the plug and pry it carefully away. It will come out easily.
4.Pulling the Fuel Injector With all of the other stuff out of the way, u're ready to yank the injector. But many people really do try to yank them out. Remember, ur fuel injectors sit right in the middle of the delicate are of the engine, so ne piece u break off might fall in, and this equals big pain in ur fanny. The safest way to remove a fuel injector is to use a fuel injector puller. There are other ways to remove fuel injectors, but if u aren't careful u could damage some expensive fuel injection components. Besides, the injector puller makes it so easy, just slide it underneath the lip in the injector housing n pop the injector out. Your fuel injector goes into what amounts to a hole in the intake manifold. When u remove the injector, u leave this hole open. Be very careful to keep ne thing from falling in. This can be a real chore to fix. Now Installation is the reverse of removal! You'll need to lubricate the new injector seals before they go in, and remember to go easy, don't forcenething in.
Posted on Jun 28, 2009
The dealer has diagrams that they can print for you for free,bleed out pressure on fuel rail(there should be a what looks like tire valve push in protect eyes when doing so fuel dont spray you)remove injector rails remove bad injector,replace make sure you dont pinch o-rings and lube them with proper lubricant sae-30wt)install install rail,reinstall all necessary parts turn on key for a few to build pressure-start-Best of luck to you!!
Posted on Jun 27, 2009
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Posted on Jan 02, 2017
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