Question about 1998 Chevrolet K3500

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1998 chevy truck security light then fuel pump quit. Starts if primed for a fue sesonds. the 10 min. relearn dosent work because security light not on anymore. checked all connectors I see replaced BCM/PCM What next?

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Check the pressure regulator. Refer to the manual on this site for location and proper pressure.

Posted on Sep 13, 2009

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My 1998 gmc snonma votec wont start it cranks and cranks and after about 20 mins it starts after that i can shout it off and it will fire back up fine then a day will go by and it dose the same thing


You have to check the fuel pump pressure to make sure it is supplying sufficient fuel pressure..Try turning the switch to on but do not start..now listen for the fuel pump to prime the system..it should run for 4-5 seconds the shut off..now try and start..if it is fully primed it should start...note although you are getting some gas dosent mean the pump is ok...sometimes it starts to go bad and then all at once it will let you down for good...have it checked out..good luck

Oct 22, 2014 | 1998 GMC Sonoma

1 Answer

Chevy blazer problems


Does sound like the fuel pump if it started after tapping on it,but the security light is a different problem. That will also kill the fuel,but if you drove it home,that problem must have started after you got home.Not sure what year it is but if it has a chip in the ign. key,try a different key,if there is no chip run the pass key relearn .
Takes about a half hour,make sure the battery is fully charged and try to kill the daytime running lights if possible,(maybe set the parking brake,some trucks that shuts off the DRL)
Then crank the engine,leave the key on(as if it was running) after about 10 min the security light should go out.When it does turn the key off and crank it again,same deal,key left on for 10 min. till the light goes out. Have to do this 3 times ,should start on the 4th attempt. That will reset the security , but if the pump is bad it still may not start,the security light should be out tho.
When the pumps wear out the brushes you can get them to run once or twice by tapping on the tank,sometimes,but it sounds like a pump as in order.

Dec 25, 2013 | Cars & Trucks

1 Answer

I have a 2001 chevy malibu. The security light was on constant, not blinking. I tried the relearn procedure 10 minutes on 5 seconds off. The security light stayed on. Replaced the ignition lock cylinder....


You are correct, the vehicle is not getting fuel. The security system shuts off the fuel injectors. Check out this link, there is good info there for ya. http://www.diy-gm-security.com/

Jun 19, 2017 | Chevrolet Malibu Cars & Trucks

1 Answer

2001 Chevy Malibu the car cranks but wont start I can hear the whine of the fuel pump coming on when I engage the ignition switch to on position, I can prime it and it will run for a few seconds...


sounds like a security problem-if the light is flashing leave the key turned on for about 10 min. until light stops flashing and then try to start engine-if this works you need to replace the pass loc sensor(ignition cylinder and housing)

Aug 18, 2010 | 2001 Chevrolet Malibu

1 Answer

I have a 1998 chevy astro V6 over 200000 miles


The fuel pump might be working but it is not priming. When you turn on the vehicle, the pump sends fuel under pressure to the injectors, to "prime" or have fuel present to be able to start engine. Without it there will no fuel available to start it. You are manually priming the engine, and the fuel pump is taking over from there. Check connections to fuel pump and replace if necessary. It is not an inexpensive repair

May 16, 2010 | 2000 Chevrolet Astro

1 Answer

Car starts and runs for 30 sec. and quits replaced fuel pump ECM and ing. switch


is the security light blinking on the dash? you need to try the security relearn.
  • disconect batrtery for 20 seconds. reconnect it.
  • try to start car, let it die, leave key on for 10 minutes or untill security light stops blinking
  • turn key off for 5 seconds
that somtimes will will do the trick. if not try the procedure again.
hope this helps

Nov 10, 2009 | 1997 Chevrolet Cavalier

3 Answers

89 regal won,t start but after 5 or 10 min. runs great


sounds like your fuel pump is going out. One thought might be that the fuel filter is causing enough resistance to over heat the pump. I would check the fule pressure to determine a free flow of fuel.

May 01, 2009 | 1990 Buick Reatta

1 Answer

99 GMC Sierra Pickup: Crank but no start. starts with starting fluid but dies. changed out the fuel filter. still not start. Do I have a bad Fuel Pump? Security light flashes then goes solid after 10 min....


The theft light issue is a good observation. Have you replaced the key tumbler or an ignition component lately? Has there been a lightning storm close very recently?

What the flashing security light is indicating is an attempt to relearn the key you are using.
Turn the key to run position, allow light to flash for 10 minutes, when light stops flashing turn ignition to OFF position for 5 seconds, turn ignition to run position and start over. Do this for 3 consecutive cycles, the the theft system will relearn the key cylinder code and store it once again.
Try that first before you go any further.
Let me know what you find.
Regards,

Apr 30, 2009 | 2000 GMC Savana

1 Answer

Loosing prime


if you don't have any leaks it is probably the check valve in the fuel pump if you just cycle the key three times by turning key on and wait 7 seconds and turn off and wait 10 seconds each cycle it will start easier if that works and it starts fine the problem is the check valve in the fuel pump

Nov 08, 2008 | 1999 Chevrolet Silverado 1500

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