Question about 1999 Chevrolet Blazer

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Engine no crank dash lights go crazy when key is on

99 chevy blazer 4.3 engine won't start has no crank. All the dash lights blink,anti theft system flashes,when the keys on . Problem occured while driving charging light came on engine died. Somebody unhooked battery and hooked it back up thinking that would fix it. Can anybody please help!

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Hook it up to a scan tool (you can rent one at any auto parts store) it should tell you whats wrong or give you an idea.

Posted on Jul 05, 2009

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Start the engine by boosting it, have a look at the voltmeter. it should read 14.4 vdc if the alternator is charging correctly.

Posted on Apr 20, 2009

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It sounds like your alternator quit charging and then your battery died. do you have a battery charger? if so, charge the battery and try to start it. If it starts but the charging light is on, you likely need an alternator. Most auto parts stores can test it for you.

Posted on Apr 19, 2009

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2001 chevy blazer turns over but wont run. new fuel pump,new fuel filter,door switch ok,have gas and pressure at manifold, have spark,runs for a second with the help of starting fluid


Try to do the crank relearn:
Ensure that your battery is fully charged before attempting the relearn procedure. Do not leave any battery charger or jumper cables attached to the battery. Close the hood completely. Some applications require that the doors remain closed during the procedure.
96-99 S10
1. Rotate the key to the start position to attempt to start the vehicle (the vehicle will not start).
Allow the key to return to the all position (same as if the vehicle would have started). The theft system light will flash (or stay lit) on the dash for approximately 10 minutes.
2. When the theft system telltale stops flashing (or turns oft) turn the key to the off position for 5 seconds and then attempt tostart the vehicle. The vehicle should start on this cycle.
3. Once the vehicle is running, the password relearn is complete.

00 + S10
1. Rotate the key to the start position to attempt to start the vehicle (the vehicle will not start). Allow the key to return to the on position. (same as if the vehicle would have started)
2. The theft system light will flash (or stay lit) on the dash for approximately 10 minutes.
3. When the theft system telltale stops flashing (or turns off) turn the key to the off position for 5 seconds and then attempt to start the vehicle.
4. Repeat steps 1 through 3 two more times for a total of 3 cycles/30 minutes.
5. On the next cycle of turning the ignition key from off to crank the vehicle should start
6. Once the vehicle is running, the password is learned and this completes the cycle.
7. Clear any DTC's with a scan tool if necessary. DTC history will be cleared after 100 ignition cycles.

Thank you for using fixya and keep me posted, be glad to help you get your jimmy running 100%

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