Question about 2003 Chevrolet Malibu

1 Answer

Trying to reset theft system

Engine turns over but will not start i do not hear fuel pump engaging.I wanted to know if there was another way to reset computer if keys don't work. my fuel pump relay is good and first key didn't work will try second key.

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  • Chevrolet Master
  • 3,854 Answers

Can try doing a  relearn process, it is pretty simple and will take 30 minutes, if it'll work for you at all since your problem doesn't sound like a computer issue.
30-Minute Learn Procedure
1. Turn on the ignition, with the engine OFF.
2. Attempt to start the engine, then release the key to ON; the vehicle will not start.
3. Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF.
4. Turn OFF the ignition switch, and wait 5 seconds.
5. Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes.
The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch turn from OFF to CRANK.

Important:
Turn the Ignition Switch OFF.
The vehicle learns the Passlock Sensor Data Code and/or password on
the next ignition switch transition from OFF to CRANK. You must turn the ignition
OFF before attempting to start the vehicle.
6. Start the engine. The vehicle has now learned the Passlock Sensor Data Code
and/or password.
7. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100
ignition cycles.
Without a scan tool you may have momentary starter interruptions while history clears itself.

Good luck and hope this help's. keep me posted if you need other ways to disable the passive lock system

Posted on Jun 03, 2009

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Posted on Jan 02, 2017

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seans46
  • 161 Answers

SOURCE: FUEL PUMP DOES NOT ENGAGE WHEN KEY IS TURNED TO

It sounds like the pump is bad, you can try to see if you can get to the wires from under have someone turn key see if pump has its second of power but if the inertia has power then the pump should as well and if you have no fuel pressure then its time to check the pump.

Posted on Jun 08, 2009

  • 52 Answers

SOURCE: no start 09 impala 30% fuel in tank hear pump run fuse/relay good

This is still a new car try not to do anything to void warranty. I know if you could get to run most likely would drive it to dealer. When your spraying the choke cleaner it is going directly into the intake to the piston area, fuel from the tank must go through the injectors which are electrically controlled, before making it to the pistons. Due you have power to the injectors when motoring the engine over. Remember you must have a very strong battery on todays new cars when attempting start it has to turn quickly. Check wiring diagram to see where injector harness power feed comes from and follow back. I hope this helps God Bless

Posted on Sep 18, 2009

MNfisherman
  • 11896 Answers

SOURCE: start engine can hear pump run once it shuts off engine dies

Faulty pressure regulator mabey or plugged fuel filter. Do you have constant power to relay and pump?

Posted on Aug 27, 2009

  • 159 Answers

SOURCE: 2000 Jeep Grand cherokee Laredo

sounds alot the the pcm it controls the fuel pump and ign system but the anti theft would keep it from starting because the key has a transponder in it programmed for that vehicle and that would kill all ign if triggered

Posted on Sep 27, 2009

  • 12650 Answers

SOURCE: The fuel pump was not engaging so we replaced it.

the fuel pump doesnt set off the check light recheck the connections at the fuel pump check for power to the connector also check the pump new doesnt mean not defective

Posted on Jan 15, 2010

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1 Answer

Were can I find the fuel pump kill switch


When you first turn the key to start the vehicle the PCM - engine computer energizes the fuel pump relay turning on the fuel pump for two seconds to prim the system . The fuel pump won't be turned on again till the PCM receives a crankshaft position sensor signal. If you hear it come on the inertia fuel cut off switch is OK . Now then what problem are you having Lisa ? A no start condition ? Is there spark getting to the spark plugs ? Do you have a red light on the dash flashing when trying to start the truck ? Anti-theft system problem .

Dec 01, 2015 | 1999 Ford Expedition

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My chevy malibu wont start. it turns over but wont start. tried new battery, not the problem. changed fuel filter, still the same thing, turns over, but wont start.


Hey Debbie. When a car wont start, there can be many things that can cause this. It can get real frustrating real quick. I will give you some things that it may be. If you are good at cars, you need to test for fuel and spark. Make sure fuel is going to the engine and make sure your ignition is sparking. If you are not good on cars, check these. Make sure your fuel pump is kicking on when you first turn the key. You should hear a humming sound for a second or two. If you do, the pump is working. If not, it may be bad. If you haven't changed the fuel filter in a long time, it may be clogged. A filter is cheap, usually 10-20 dollars. A fuel pump is 100-200 dollars. Check your air filter and make sure the engine is getting air. The filter may be clogged/real dirty. You could check the fuel pump fuse/relay, only if you didn't hear the pump. Your timing belt may have broke. You need to spray starter fluid into your carburetor. You will have to take off the air hose to do so. Once you spray it in, try to start the car. If it starts and dies, you have a fuel issue. If it stays the same and doesn't start, you will have to check the ignition system. This included the spark plugs/coils, distributor, dist.cap, rotor, cam sensor , crank sensor, ecm. I know it is a lot to take in but it could be any of these. Let me know if you know the engine good. There are things you can check, if you know how to check them. The only way to check for the problem is by checking each possibility. If you have a question Debbie, let me know. I am here to help. Thanks for choosing FixYa.

Feb 23, 2011 | 2003 Chevrolet Malibu

1 Answer

My 2000 chevrolet blazer just shut off while driving and u can turn the key and still hear the fuel pump engage so maybe other than a possible solonoid problem i wouldnt know other than the fuel pump or...


I had the same problem and to my understanding blazers are known for their fuel pumps going out. You might hear the fuel pump engage but that doesn't mean it is putting out enough fuel pressure to keep the engine running. Your best bet is to have it towed to a local shop and let them run a pressure test to check and see if your getting enough fuel pressure or if your a big do it yourself type you can rent a pressure tester from auto zone or your local auto parts store. If you don't want to do that you can get a fuel pump for around 3 to 4 hundred dollars and replace it and see if that cures the problem.

Nov 20, 2010 | 2001 Chevrolet Blazer

1 Answer

Changed fuel pump now car won't start does it have a reset button


no reset. Most likely the fuse or relay is the problem. These are usually in the engine compartment relay box. Here are some notes that may help:

A good first check if fuel delivery problems are suspected is to spray some starting fluid into the intake system while someone cranks the engine. If the engine starts or tries to start with starting fluid, it is not getting fuel. In most modern cars, the fuel pump is inside the gas tank and is also usually sold with the fuel gage sending unit--an expensive and laborious R&R job. If the pump is working, you should hear it at least momentarily when the key is turned to the "on" position. If the pump is not working, the cause could be a fuse, a relay, an accident "kill" switch that needs resetting, or the pump itself. You'll want to rule out all of the inexpensive possibilities first. Use your owners manual (you can often find these online if you don't have the original) to locate the applicable fuse, relay, and/or cutoff switch. To check the relay and ignition switch, follow precedures at http://www.fixya.com/cars/r6022358-relay_check. You can also check for voltage at the pump connector with a test light.
Assuming your pump works, fuel still needs to get to the engine. A clogged filter will certainly limit fuel flow, but will rarely prevent a car from starting. That said, filter replacement is an inexpensive bit of maintenance. Most likely cause of fuel not getting to the engine when the pump is working is the fuel injection system (not an issue for carbureted engines). Injection systems are beyond the scope of this tip, but there are a couple things you can check. Many anti-theft systems cut off the injectors when activated. If you have such a system, make sure your anti-theft system has not been activated. Also, the injectors require a certain level of fuel pressure. Though your pump may be working, it may not be producing pressure. If possible, have your fuel pressure checked or borrow the appropriate tool to test the pressure. Always check pressure at the fuel rail, as some designs include a separate regulator that is typically in the line in the engine compartment. The injectors may be controlled by an injector module or directly by the engine or powertrain control module/computer. The signals sent to the injectors can be checked using a special tester or oscilloscope. A simple but crude method of checking injector operation is to put a long screwdriver on the injector body and hold the handle to your ear while someone cranks the engine. If the injectors are working, you should hear the solenoid click once every 2 revolutions.

Oct 15, 2010 | 1996 Chrysler Cirrus

1 Answer

It turn but will not start


Could be fuel pump. If you hear the pump in the rear of the car turn on and then quit you may have a theft system problem. Check on the dash for the theft system indicator. If it is blinking when you try to start the car that is the problem. Close all doors and turn key to On for 10 mins til theft light turns solid and disappears. then try to start car.

Aug 07, 2010 | 1999 Chevrolet Malibu

2 Answers

My theft light is flashing but my 1997 expedition wont start.The vehicle turns over but just don't start.


ANTI-THEFT SYSTEM Passive anti-theft system
Your ignition key has a unique imbedded transponder which engages engine electronics and allows the vehicle to be started. Without the use of your special ignition key, the vehicle will not start.

During each vehicle start, the coded key is read by the anti-theft system. If the key’s ID code matches the code in the anti-theft system, the vehicle is enabled to start.

Anti-theft system
Briefly illuminates when the ignition is turned to the ON position to verify that the passive anti-theft system is operating properly.

Also, its possisble that tou have actovated the fuel pump switch.

CHeck it.

Jul 20, 2010 | 1998 Ford Expedition

1 Answer

2003 Chevy malibu electrical schematic Fuel pump


Only if theft light is flashing, then it would need to be reset, to reset turn key to on and wait till theft light stops flashing about 10mim or so, then turn key to off and back to start engine.

May 27, 2010 | 2003 Chevrolet Malibu

1 Answer

Car would not start after engine ws turned off. After sitting for sometime, engion would start. Now engine tries to start..it it does, it turns off immediately.. Fuel pump is good. it is not the 02...


DOES THE SECURITY LIGHT FLASH WHEN YOU TRY TO START IT AND RELEASE THE KEY AT THE RUN POSITION? IF IT DOES WAIT FOR TEN MINUTES WITH THE KEY IN THE RUN POSITION. WHEN THE SECURITY LIGHT STOPS FLASHING TURN OFF THE IGNITION AND COUNT TO THIRTY AND TRY TO START THE ENGINE. THIS WILL RESET THE THEFT SYSTEM BUT MAY NOT FIX YOUR PROBLEM.

IS THERE A CODE B2960 STORED IN THE BODY CONTROL MODULE?

IF SO THE MAIN REASONS FOR THE NO START LIKE YOU DESCRIBE ARE THE IGNITION THEFT MODULE, THE WIRING TO THE BODY CONTROL MODULE, OR THE BODY CONTROL MODULE.

THIS SYSTEM IS A ROYAL PAIN TO DIAG AND GET IT RIGHT THE FIRST TIME. YOU REALLY NEED SOMEONE WHO KNOWS THE SYSTEM TO FIX IT RIGHT THE FIRST TIME.

Jul 10, 2009 | 2003 Chevrolet Malibu

1 Answer

1996 CHEVROLET CAVALIER.


It is probably not the anti theft system if it cranks over fast then slow it is your timing chain. If you want to try resetting the anti theft system disconnect the battery cables for 24 hours and reconnect them.

Nov 01, 2008 | 1996 Chevrolet Cavalier

4 Answers

Tahoe won't start


Is your security light flashing? If your Tahoe has the factory ant-theft system, if the security light is flashing while you are cranking your anti-theft system has been activated. It is common for the Tahoes to wear out the ignition lock assembly, lock cylinder and the ignition switch(electrical) which is attached to the lock assembly. I have replaced all three parts with great success and solved the no start problem on several GM trucks.

The most common problem with these vehicles is the fuel pump. The pump should run for a few seconds when you turn the key on before you crank the engine. If you don't hear the pump run, go to the fuse/relay box under the hood. Look at the diagram on the inside of the lid and locate the fuel pump fuse and relay. Check the fuse to see if it is blown put it back if OK or replace it. Unplug the fuel pump relay and use a paper clip to jumper across terminals #30 & #87 where the relay plugs in. If the fuel pump starts running, you should be able to hear it run at the back of the vehicle, where the tank is. If you don't hear the pump running, hit the center of the tank dead-center with a rubber or wooden mallet. If the pump still doesn't run, see if you can get to the wires going to the fuel pump and wiggle them. If you hear the pump run, try starting the engine. If it starts, replace the relay, if that was the problem or the fuel pump AND relay if the fuel pump was the problem. WARNING! WHEN YOU UNPLUG THE PAPER CLIP. IT MAY BE HOT!!!
The fuel pumps AND connector are big problems with GM trucks. If you replace the fuel pump(which is located in the fuel tank), use only the factory pump which you can buy at your GM dealer or an auto parts store that sells Delco parts. If the fuel pump used the small square four-pin electrical connector, replace it with the fuel pump. The latest GM/Delco fuel pumps will come with the new plug which you MUST change over as it is now a flat four-pin connector.
GOOD LUCK!

Jun 11, 2008 | 2000 Chevrolet Tahoe

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