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Symptoms of a bad fuel injector in a 2007 impala

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I would start with replacing the spak plugs first

Posted on Jan 20, 2013

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Posted on Jan 02, 2017

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SOURCE: 02 impala fuel injectors aren't getting any power

Have you checked the fuse for them?
Some vehicles have a resistor pack between the ignition on and the injector drive circuit. IDK if yours does or not.
Also, if you have one bad (shorted) injector, it may shut down the injector circuit. You check for that by disconnecting all the injector connectors and then check for a power signal on any one of them. With key on, one of the wires to each injector should have a constant signal. Is that how you determined that no power is reaching them? Will watch for your reply.

Posted on Mar 27, 2012

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SOURCE: i have a 2007 3.9 chevy impala with active fuel management and a bad oil pressure sensor

change it

Posted on Jan 17, 2013

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Wanted to know how to fix all the problems on my 2003 impala


This should help. If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

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Can a bad computer in an 2007 h3 hummer cause a fuel I injector to go bad?


No a fuel injector can go bad on its own not because of the computer.I have a 2007 hummer H3 and have used 3 engines on the car and the computer has always given me nothing but good service

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02 impala fuel injectors aren't getting any power


The power is supplied in the engine fuse junction box located bottom right side of engine compartment.It is a 15 amp fuse. This is for power,for the injector also check ignition fuse while you are in there.

Mar 27, 2012 | 2002 Chevrolet Impala

1 Answer

How to remove bad gas from 2001 impala


Bad gas can cause several concerns depending on what's in it. If it's only a liquid type bad gas then it can be purged. If it has debris it's another story. With a liquid only concern, a scan tool can be used to turn on the fuel pump and pump out the fuel by removing the fuel line at the injector rail or fuel filter. The fuel is under pressure so please use safety glasses and relieve the pressure. If the fuel had debris in it, the tank should be removed and completely cleaned, the lines should be purged, the filter replaced and an injector flush performed which requires a special tool. Fill the tank with fresh gas after repairs and monitor engine performance. The fuel injectors have tiny orifices that spray the fuel and are subject to clogging. If there's any reason you can't give four thumbs up, please request more information. Thanks and good luck!

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3 Answers

P0304 code-Misfire on cylinder 4


A P0304 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #4.-------- Symptoms may include:--------
  • the engine may be harder to start.
  • the engine may stumble / stumble, and/or hesitate.
  • other symptoms may also be present.
--------------- 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, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.-----------------
This should help.Thanks.Helpmech.

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Bad spark plugs, spark plug wires or ignition coils, or faulty injectors

Feb 24, 2011 | 2000 Chevrolet Impala

1 Answer

Is there any recalls on the gas tanks of the 2006 cobalts cause my tank is leaking at the top


Fuel Sys, Driveability, Filters (Air & Fuel)
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1 Answer

My impala miss fires when i step on the gas whats wrong


please read about causes of this misfire in the engine.
The most common misfire causes on the cars I've worked on have been:
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  2. Spark plug wires (most common)
  3. Ignition coil
  4. Fuel injector
  5. Wiring to fuel injector
  6. Timing Belt
  7. Vacuum leak or stuck open EGR
  8. Contaminated fuel or bad fuel pump
  9. Weak compression
  10. Blown head gasket

May 23, 2010 | 2000 Chevrolet Impala

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