Question about 2003 GMC Sierra

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Wont start vehicle will turn on but wont start

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Will the engine turn at all? Might be your alternator. Getting a wrench and tapping it might work.

Posted on May 23, 2008

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I have a 04expedition eddie bauer 5.4 wont start good battery ,good lights ,wont start with ignition put remote starter on starter,will turn but no start can you help me?


Sounds like anti-theft system problem ! There is a little red light center top of dash pad , When you try to start the vehicle does the light flash fast ? If the vehicle thinks it's being stolen it won't let truck crank over an it turns off the fuel injectors !

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Start the vehicle with the key. Also try unlocking the vehicle with the electric locks. Either should fix the problem.

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I take it your vehicle is fuel injected, if so you might need to run a diagnostic on your car to make sure there are no fault codes registering that might prevent the vehicle from starting.

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96 ford Windstar turns over but wont start,also turning ignition to the start point i have to re-grip ignition once again to turn vehicle over normally,i just turn key once it clicks then starts.it's...


I have worked on a similar problem with one of these vans. You either have spark or fuel issues if the engine turns over. I would say jugging by that it will start after long cranks that it might be fuel related and you should have the vans fuel pressure checked to see if it is in range and not weak.If it is security related a light would flash for that.You can easily figure out if it is fuel related by spraying carb cleaner in the hose where the are filter is but be careful not to spray on the mass air flow sensor. I hope this points you in the right direction.

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Turn ignition to run not start,count to 5,turn off key. Repeat this three times. Try to start vehicle. If its starts you are done. If not you will need to repeat turn ignition on count to 5 then turn off, 3 more times On the fourth time leave key in the run position for 10 minutes. Then turn key off & start vehicle.

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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.

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1 Answer

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Hi there, I suspect the starter. Something is loosing its connection when it gets hot (expands). Best thing to do is buy a Haynes or Clinton's repair shop manual at your local AP store for your particular vehicle. Then read up on it in the trouble shooting section or the step by step RR section. You can purchase these at your local Auto Parts store or buy them on line at ebay burdfrenzy

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you may have a high moisture build up in fuse bussbar

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resistor.............tell the mehanic

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