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Anonymous Posted on Aug 27, 2013

Does anyone know if there is a security device on the 2003 Malibu that would prevent fuel from getting to the injectors?

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  • Chevrolet Master 2,101 Answers
  • Posted on Aug 28, 2013
Anonymous
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Yes it has a keyless entry on it . the key has a chip in it and there is a body control module under the dash next to the steering coluum

4 Related Answers

Anonymous

  • 30 Answers
  • Posted on Aug 16, 2008

SOURCE: fuel filter 2003 malibu

The fuel filter is located on the fuel feed pipe, between the fuel pump and the fuel injectors. It will be a Metallic tube like item about 4 inches long inline with your fuel supply (feed) line. If you can lift vehicle or get underneath it, then find your gas tank, find the line coming from top of your gas tank and trace it out. Filter is uaully within a few feet of the gas tank.

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Anonymous

  • 208 Answers
  • Posted on Dec 02, 2010

SOURCE: 1998 malibu 2.4 has code PO200 i have changed fuel

P0200 is injector fault code. You need to test each injector with a ohm meter. The resistance should be around 10oms if 0 then it's falty ijectors, if not maybe it's cars comp. Does the security light flash after thrying to start the car?

brian hartle

  • 7 Answers
  • Posted on Dec 05, 2011

SOURCE: does anyone know the wiring diahram for the fuel injectors so i can see if the #7 injector is getting power?

Is this a 7.4L engine? If so there should be power there when the key is on engine off. The other wire is a ground that goes to the pcm to pulse the injector. If you are having trouble with missfires on No. 7 of a 7.4L you may have a preasure regulator vaccum diaphram leak. This vaccum connection is on the No. 7 intake rail. To check pull the hose off and check for fuel in the vaccum line if there is the diaphram is bad and you can pick this up at you local parts store. If there is no fuel you can check to see if the regulator holds vaccum with a hand held vac. pump.

kevin_getz

Kevin Getz

  • 1032 Answers
  • Posted on May 05, 2012

SOURCE: Chevy Malibu 2003 cranks but won't start! I know

You might have a defective fuel tank pressure sensor!

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1answer

Installed after market radio on 2010 Chevy Malibu after installing the car will turn over but will not crank and the trunk will not pop open. What could have caused that ?

My first thought was your security system? I don't have good enough info on that security system. Is there a security lamp on the dash that is on or flashing? If so, you can try 30 minute relearn procedure to see if it helps?
Some more testing, make sure battery has a full charge. Have helper crank it while you check for spark at the plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse. Let the starter motor cool off a little between cranking. I know some the older malibu use passlock security system, usually that is fuel injector disable only.
Any applicable trouble codes?
When you hooked up your radio did you splice into any wiring? I'm not a stereo person.
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I have a 03 malibu with 170k mi.that misses hard at 22k to 25k rpm. New fuel filter plugs and wires. Any thoughts?

always the plugs for missing
never a thought for low fuel pressure or bad injectors or for running the fault codes to find the problem
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Troubleshoot not getting fuel

Your positive no fuel is getting to the fuel rail an injectors ! Did you hook up a fuel pressure gauge ? The anti-theft system will shut off fuel injectors on GM vehicles . SECURITY light lit on the instrument cluster ? Here is a video on testing GM fuel pump electrical circuit . GM Fuel Pump Relay Testing Do you know what relays are ?
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My brother in law has a 2003 Chevy Malibu with a 2003 3.4 Impala engine inside. Apparently a previous owner did an engine swap. I check for spark and fuel pressure both are fine. The car still wont start,...

You can confirm each injector is actually working. Get a momentary switch, 2 feet of wire and some spade terminals (or whatever your connectors take). Disconnect the plug that connects to your injectors. Determine which injectors are controlled by which 2 wires. Connect 1 wire to the Positive 12V side of battery, then to one terminal on your switch. Connect a second wire from the other terminal of the switch to one of the two terminals of the injector you are testing, then connect a wire from the second terminal of the injector to any good ground on the car, or back to the Negative 12V on the battery. With the engine off, push the momentary switch on and off you should hear the injector clicking. If you hear the clicking that injector is working. Repeat the procedure for all other injectors. To avoid and shorting issues the wire going to the positive side of the battery should be connected last, and make sure no part of the wiring on the positive side touches any metal during this entire procedure.Disconnect the positive wire after each test to avoid any accidents.
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2003 Chevy Malibu I need to know exactly where the fuel injectors are located so i can replace them. Please and thank you.

The 2003 Chevy Malibu has a 3.1 L GM 60 V6 engine.
Both of these videos should show you approximately where they are and may also help you replace them.
0helpful
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Fuel pump location on a 2003 chevy malibu

Your cars fuel pump is located inside the fuel tank. All fuel injected cars except a few older foreign cars [mostly European] have electric pumps located inside the tank. This allows them to make the pressure required by the fuel injectors.
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03 malibu car chugging when starting to move have to hit gas hard to move car replace all tune up parts and crank sensor and mass air flow sensor still same problem anyone that can help

you should check to see if there are any codes in the pcm as not all codes will set the check engine light on.you could have a problem with the throttle position sensor(tps).also check the fuel pressure as if its not within limits by holding the throttle open it allows more fuel to be sprayed by increasing the on time of the injectors.
0helpful
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1998 malibu 2.4 has code PO200 i have changed fuel regulator injectors checked return line its not stopped up checked fuses can anyone help please

P0200 is injector fault code. You need to test each injector with a ohm meter. The resistance should be around 10oms if 0 then it's falty ijectors, if not maybe it's cars comp. Does the security light flash after thrying to start the car?

0helpful
1answer

I am in the middle of tearing down the engine to get to the lower intake manifold gasket, but I can't figure out how to disconnect the fuel injector electrical connectors. Anyone know how that works?

Sometimes GM uses a colored slide lock clip that you have to release before you can depress the main hold down clips. Sorry not completely sure, the main reason I'm posting this is to let you know that you must keep the pushrods in order as they are different lengths. If they have become mixed up, I can post the correct order for you if you like. It is critical.
2helpful
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Fuel filter 2003 malibu

The fuel filter is located on the fuel feed pipe, between the fuel pump and the fuel injectors. It will be a Metallic tube like item about 4 inches long inline with your fuel supply (feed) line. If you can lift vehicle or get underneath it, then find your gas tank, find the line coming from top of your gas tank and trace it out. Filter is uaully within a few feet of the gas tank.
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