Thursday, September 15, 2011

Can they clean my fuel injectors without my car running ?

I'm having fuel injector problems. I think there so clogged up the car wont start. It will start with a cup of gas in the intake but not run. On a fresh start up it starts for a sec. before it dies again. I got good pressure at the fuel rail so it's gotta be clogged injectors right? I did just change out he in tank fuel pump, after which it wouldnt start ??? V8 so I dont know about changing out the injectors, so can they clean em out if it will only start but not run? How dose it work???
Can they clean my fuel injectors without my car running ?
the car wont run after you installed the fuel pump? It sounds to me like the pump isnt putting enough pressure to the injectors. Its not likely all 8 injectors failed at the same time. Is this a newer engine with port fuel injection? Or is it something like a throttle body? If your adding a cup of gas to the intake, that means the injectors arent being used, the fuel is going in straight with the air. Maybe the injectors arent getting voltage. I use a test light at the wiring harness to check for voltage pulses.
Can they clean my fuel injectors without my car running ?
it is unlikely for all of the injectors to quit all at once, if the injectors were to go bad they would go one at a time, what you need to do is test to make sure the injectors are getting signal from the computer, most auto shops will have node lights i think there called to test them, or you can check with a test light, but dont go replacing all the injectors, if they were clogged the car would run crappy, but they would not i repeat would not ALL go bad at once, its more than likely something electrical with the car, and injectors can run about 70 dollars a piece so you want to be certain of whether there bad or not before you replace them,
Fuel injectors rarely get dirty now days. You probably have a problem with the crankshaft or camshaft sensor not pulsing the injectors. Is the ses light on and have you had the vehicle scanned for codes? What is the fuel pressure? 40 to 50lbs is average. Why did you change the fuel pump, bad pressure?

You won't get anywhere just guessing. Have a mechanic check the data on a scanner, not just scan for codes. A bad temperature sensor can lean out the fuel and keep a car from starting. There are too many things that can cause your vehicle not to start to guess at. Telling us the model,year and make of your ride would help!
He's right. Replace the injectors. The car will run much much more better if you can get it to run. Besides you are only delaying the ineviteable. IF you're getting the proper pressure to the fuel rail then yes, it would have to be the injectors.
It will probably run you up around the same to have them cleaned and renewed as it would to replace them with new injectors. Assuming that is the problem, could be something else. How is the air intake/fan?
Remove the injectors and you will find the problem you should not need to replace all of them in fact you will most likely find an obstruction in the rail itself.
I've got to agree with frank. If it ran before you changed the pump, and didn't after, there might be a pinched fuel line or return line at the back. Before you spend any more money, double check your install.
There is a service where they clean the injectors using untrasonic cleaner.



I would just get new injectors.





good Luck...
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