Question about 1989 GMC C2500

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My 1989 gmc 2500 sle sierra wont start iv replaced in the distributor the cap rotor and ignition switch reset computer checked all fuses and it still wont fire theres no spark from any plug the distributor or the coil and the injectors wont put out any fuel it ran fine yesterday but wont start today

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Check if there is power going to the distributor

Posted on Sep 29, 2010

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97 gmc 2500 5.7l vortec, won't start, fuel pump works, tried using starting aid and nothing, hooked up a scan tool, and no errors came up, could it be the crank position sensor? or the distribution centre...


See if you have spark on at least two plug wires. If you do, but it is weak, you may just need a good tune up (plugs, wires, distributor cap, and distributor rotor). If you don't have spark or it is only on one wire, take the distributor cap off and see if the distributor is turning while someone turns the key. If it doesn't spin, you need a distributor because the bottom gear is broken or stripped. If it does spin, then it could be the coil, ignition module, crank sensor, fuse or wiring to any of these parts. It will take a lot of wire testing and diagnostics to figure out which part it is if it isn't just a simple tune up or distributor.
Hope this helps. Good luck!

Apr 12, 2011 | 1997 GMC Sierra

1 Answer

1989 chevy 2500. started it up in driveway it died wouldnt start. changed ignition module drove it to town died wouldnt start again. got a diognostic tester which read throttle positioning sensor changed...


I WOULD CHECK IGNITION FUSE TO SEE IF POWER GOING TO COILS AND IGNITION MODULE. REPLACE DISTRIBUTOR CAP AND ROTOR.HAVE IGNITION TIMING CHECK.DISTRIBUTOR CAN SLOWLY WORK A LOOSE JUST A LITTLE TO THROW OFF IGNITION TIMING SO PLUGS WONT GET NO SPARK.

Jan 04, 2011 | Chevrolet 2500 Cars & Trucks

1 Answer

My truck wont fire I have replaced the distributor cap rotor in distributor and ignition control switch in the distributor what know replace the computer it ran fine last night but it wont start today


first you need to test circuits see where the fire is going in and coming out when you find the spot that you have no firing coming out theres your demon replace it also check your fuse if it didnt show signs of a problem befor you parked it make sure you ignition relay or fuse isnt blown also check your ignition control moule and pick up some call them stators

Sep 29, 2010 | 1989 GMC K2500

1 Answer

1998 gmc sierraSl 2500 turns over and over have replaced plugs wires coil ignition module distributor cap rotor button no luck getting fuel smell it


listen to see if you can hear the fuel pump running in feul tank. if running then check electronic fire box to make sure it it not loose,if loose it will not be grounded good and will not run or run bad(back-fireing

Sep 18, 2010 | 1998 GMC Sierra

1 Answer

My 2003 gmc v6 just had its plugs and wires and distributor cap and button changed and i put the distributor button on wrong, it ran fine 4 a mon. or 2 and one of the screws came out of the button and...


The distributor cap and/or the ignition rotor most likely have a crack somewhere and the distributor cap should be replaced along with the ignition rotor. The ignition module could have been damaged as well as the ignition pick-up coil/stator and if replacing the distributor cap and ignition rotor does not solve the problem then the ignition module or the pick-up coil/stator assembly inside of the distributor is also most likely damaged and the distributor will need to be replaced. There is a certain procedure for removing and replacing the distributor, and the ignition timing is not adjustable and it is not set using a timing light or with the engine running, and if you do have to replace the distributor Let me know if you require the procedure to properly remove and replace the distributor or if you require any further assistance.

Aug 17, 2010 | 2003 GMC Sierra 1500

1 Answer

Help me reinstall ignition on 2007 gmc sierra hd sle!


Get a manual from an auto parts store specific for your vehicle. In it, you'll find exploded parts diagrams and step by step instructions on how to replace those parts

Apr 15, 2017 | 2007 GMC Sierra 2500HD

2 Answers

1998 k1500 5.7L ecm-I fuse blows and wont start


Sounds to me its time to replace your ecm

Apr 04, 2010 | 1998 GMC Sierra

2 Answers

1989 GMC engine turns great , no spark at coil or plugs, had coil tested and repalced- new rotor and cap. not sure where to go next


Check your fuses (ECM) and also recheck your wire leads to the coil. Your ICM (ignition control Module) may also be bad, it's located in your distributor under the rotor. You can have that tested also to make sure it's working 100%, there common to go bad from corrosion caused by condensation under the distributor cap.
Thank you for using Fixya and good luck.

Mar 20, 2010 | 1989 GMC K1500

1 Answer

Need wiring hookup for 1984 350 Gmc pickup motor for a distributor, the truck started but then will not start now and has no spark


Confirm, HeI ignition? Check distributor ror for center burn out under the center spring contact.Replace the cap and rotor.

May 03, 2009 | 1989 GMC Sierra

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