Question about 1997 Chevrolet Blazer

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How to enter 1997 blazer security code reset

Vehicle stalls after 15 minutes then won't start

Posted by Anonymous on


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Posted on Jan 02, 2017

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SOURCE: truck will not stay running after removal of security system.

You probably need to do the relearn process to reteach your ECM or PCM . dont try to start it but turn the key on for 10 mins until all the idiot lights go off, turn the key to off for 5 seconds and repeat the process 2 more times for a total of 3 cycles. It should be fine after that. I am no expert but it worked for mine.

Posted on May 30, 2009

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SOURCE: A/C compresser on 2001 chevy blazer works part of

It may be fully charged but it has moisture or air in the system. try bypassing the pressure switch with a paper clip it's on the reciever dryer, if it works ok then you need to replace the low pressure side switch if it does not then you need to replae the capilary tube and reciever dryer, also does any ice form on any of the tubes? and make sure the raditor is full of water and that the raditor and condensor fins are clean, if not take to car wash and wash from the inside of the engie to the outside till you can see clearly threw the condensor and radiator.

Posted on Jun 17, 2009

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SOURCE: 1992 Chevy S10 blazer 4wd (4.3 TBI engine code Z).

Replace ECM

Posted on Aug 15, 2009

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SOURCE: 97 chevy blazer w/ 4.3 won't start unless i

if you can put fuel in throttle body and it runs. then it is not getting any fuel. check your fuel pump fuse and the relay, if ok, then you may have a bad fuel pump or a plugged up fuel filter. check filter and fuses first. good-day !!

Posted on Jul 18, 2011

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SOURCE: 98 Chevy blazer won't start up but will crank ,,

Try giving it a shot of starting fluid. You don't say if it's actually firing. If it tries or runs for a few seconds off of the starting fluid then try changing the fuel pump relay. It's inside of the glove box on the left hand side behind the little door. If that doesn't work it's most likely the fuel pump.

Posted on Jul 21, 2011

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1 Answer

Reset passlock code 1998 chevy blazer

30 Minute Procedure
  1. Ensure that the battery is fully charged.
  2. Use a scan tool in order to clear the Passlock?"¢ DTCs.
  3. Turn the ignition switch from the OFF position to the CRANK position, and then to the RUN position.
  4. The vehicle will start and then stall.
  5. Leave the ignition ON until the security telltale turns OFF in 10 minutes.
  6. Repeat Steps 3-5 for 2 more times (3 times total)
  7. The Passlock?"¢ controller will learn the new data on the next start attempt.
  8. Use a scan tool in order to clear all DTCs.
What code ?

Dec 10, 2015 | Cars & Trucks

1 Answer

Reset antitheft on 2003 chevy. Blazer how. To

Perform the re-learning procedure
  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to start the engine, then release the key to ON (vehicle will not start).
  3. Observe the SECURITY light, after approximately 11 minutes the light will turn OFF.
  4. Turn OFF the ignition, and wait 10 seconds.
Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes ( the vehicle is now ready to relearn the Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK).

Sep 20, 2014 | 2003 Chevrolet Blazer

1 Answer

98 Pontiac Bonneville intermitanly stalls & won't restart.

If you have a vats system (anti-theft) it needs to be reset

May 05, 2017 | 1998 Pontiac Bonneville

1 Answer

Truck stalled wouldn't start.

I can understand you being frustrated.
There really is no way to tell if the fuel pump was the problem at this point.
If the security system fails, you should see "security" light up on the cluster.
The key lock has a sensor that reads the chip in the key. If the sensor fails or the chip fails the computer won't let the vehicle start.
Most of the time when the security system is at fault, the vehicle won't start, but it won't cause the engine to stall.
You might want to have someone check the fuel pressure and spark at the plugs if you don't see the security light on the cluster.
Could be the fuel pump relay and a list of other things.
I would probably check the computer for trouble codes too.

Jul 21, 2012 | 1996 GMC Sierra

1 Answer

How to reset the anti theft on a 1998 pontiac grand am se

Not sure what repair was done to cause you to need to reset it and it it much easier with the proper computer and software but it can be done "manually". Make sure your battery has a full charge on it. Use a scan tool if able to to clear any trouble codes (DTC's). Turn the key to the "off" position and then turn to the "crank" position as if trying to start the vehicle which may start but will stall. LEAVE the key to the "on" position at this point. Now this next step can take 10 or 15 minutes but while the key is in the "on" position watch the security light indicator. When the security indicator light turns off, turn the key to the "off" position and wait 10 seconds. On the next start the body control module as well as the powertrain control module (PCM) will learn the new new code when the vehicle is started. This IS the procedure and if this doesn't work you may have other problems. Normally this should only need to be done if the passlock sensor, instrument cluster or the PCM has been replaced. Hope this helps.

Feb 12, 2012 | Cars & Trucks

1 Answer

I have a 2001 Olds Intrigue that won't start every once in a while. When it won't start the security light flashes so GM told me it was the passcode and I would have to change the ignition switch...

you can not bypass the security in that car, it is built into the main computer, they have problems with the ignition switch screwing up and the only way to start it while the light flashes is to turn the key to ON but don't crank engine, leave on for 10 to 15 minutes until light goes out then start car.

Sep 21, 2011 | 1998 Oldsmobile Intrigue

2 Answers

My 03 chevy blazer 4 door has no spark and no fuel i think it might be the passlock and ideas for solutions?

Yes here is a great link for trouble shooting and fixing passlock security issues

Aug 26, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

97 chevy blazer w/ 4.3 won't start unless i pour full directly into it....what is causing this. was driving and it just stalled ...fires but won't turn over completely

if you can put fuel in throttle body and it runs. then it is not getting any fuel. check your fuel pump fuse and the relay, if ok, then you may have a bad fuel pump or a plugged up fuel filter. check filter and fuses first. good-day !!

Jul 18, 2011 | 1997 Chevrolet Blazer

1 Answer

If you have a 1997 pontiac firebird and it wont start because the security light keeps coming on what is the problem?

could be a security relean.
•Insure that the battery is fully charged.
•Turn the ignition switch from the OFF position to the CRANK position attempting to start the vehicle. The vehicle will start and then stall.
•Leave the ignition switch in the ON position while observing the security indicator.
•When the security indicator turns off, which can take up to 10 minutes, turn the ignition switch off. Wait 10 seconds.
The BCM and the PCM will learn the new code on the next start attempt.

Jul 16, 2011 | Pontiac Firebird Cars & Trucks

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