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Answered 2008-09-24 03:25:26

Have you changed fuel filter and check fuel pump presure?


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If the problem followed the fuel injector then it is a bad injector. If the problem stayed at the same hole with a different injector then it could be bad wiring.

Fuel pump????? If it's an injector problem you should run a diagnostic test to see what the computer has encountered. It could be quite minor but you'll never know until the diagnostic codes have been read.

No it is not a fuel pump problem. It either has a grounded are open circurt. Check wiring to injector. May just be a bad INJECTOR.

the harness could be bad on that injector chech to see if its firing and if it is then the injector is bad

Try checking fuel injector that is what the problem was with mine after checking everything else i replaced injector an fixes the problem

I assume you are asking about professional cleaning. Unless you have an injector that is giving you a problem the answer is no. Modern gasolines contain a cleaner to help keep injectors clean. Replace the fuel filter every 36,000 miles. Once a year pour one can of a good fuel injector cleaner in a full tank of fuel. A cleaner such as Seafoam, Techron, or similar product is just good insurance. Avoid the cheap cleaners that you buy for under $2 as they are for the most part worthless.

Reading diagnostic codes is easy. The driver plugs the reader/scanner into the diagnostic port of the vehicle, and the scanner/reader will give a code if there is a problem, and tell them the type of problem.

If it is just one injector, it is a bad injector or a problem in the wiring harness or connector for that injector. If it is all of the injectors, it could be a fuse, the entire injector harness, a broken loose or unplugged connector on the injector harness, or the fuel pump or fuel pressure regulator.

I had a similar problem. Turned out to be a bad solenoid on the fuel injector. Required the replacement of the entire fuel injector. After that, the problem was solved.

Pull it out and look at the spray pattern.

Diagnostic tools are used to check your car where has the problem and how to do.There are many kinds of diagnostic tools,you can consult,maybe it can help you:

Peak injector current has not been reached (non-turbo) or a problem with an injector circuit (turbo). Check the injector(s) and electrical harnesses.

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The mechanic ran every diagnostic test, but still could not locate the source of the problem.

Please check to see if you have any leaks at the injector. You may also have a different leak somewhere else. Then check for any other codes that you might have. You should start from here then see if you have anyother trouble. Be sur you have fixed the injector first, before you contine looking for any other engine trouble. prosess of elimination.

on the fire wall under relay center this is the fuel pump fuse injector fuse is in the fuse block injector a if any at all what is the problem any whay.

Are you sure you are changing injector #7? Should be the injector closest to the firewall on the drivers side. If you are changing the correct injector, and the code remains, the problem is with the wiring from the injector to the pcm (computer) or the computer itself. You can check for correct battery voltage at the injector with a volt/ohm meter (how does the connector look at the injector?). This year of Durango/Dakota had trouble with computers too, although I have not heard of specific injector trouble being caused by the computer. Most likely a wiring problem. It may even be the TPS

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possible problems are: The fuse is blown, or the injector is bad, or the wiring to the injector is bad, or the computer is bad

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