My 97 blazer will not start battery is hot has a new starter on it new neutral safety switch and starter relay do you think it is in the column

Information for the combined neutral safety switch and reverse switch, but you are guessing that it is the problem.

https://www.google.com/search?q=1990+caprice+classic+replace+neutral+safety+switch

Diagnostics is the way to solve. I am not sure if it has an immobilizer, but you disconnected the battery. If there is an engine immobilizer, it needs to be reset.

https://portal-diagnostov.com/en/2020/07/04/chevrolet-caprice-classic-1991-1990-92-engine-performance-4-3l-self-diagnostics-tbi-tests-w-codes/

This is the best way to fix it. An auto electrician with a pro grade scan tool computer. The "let's try replacing this" method of auto repair doesn't work and is expensive.

https://www.google.com/search?q=mobile+auto+electrician+near+me

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I believe Neutral start switch is in the transmission. Try to start with the shifter in Neutral instead of Park. Make sure the wires to the neutral switch are intact. Make sure the battery cables are good and measure the voltage at the starter solenoid.

sounds like time to change Ignition switch in steering column

Here is a link for help with the antitheft system. Might help you out http://vatspasslockpasskeysecurityhelp.yolasite.com/

Hi, what you would need to do is check the ignition switch to see if it is passing power to the start wire. If it is, then the wire from the ignition switch to the park/neutral switch is bad. You can trace the wire up to the ignition switch from the park/neutral switch. It's bolted to the side of the column and is not hard to swap out. Cost is only $10.

When you go to start the engine you are actually sending power from the ignition switch through a 20 amp fuse [crank fuse] then through the Park/Nuetral safety start switch and finally to the starter relay [located at the center rear of the engine compartment] This relay then sends a more powerful current flow down to the starter solenoid located on top of the the starter which then closes and allows full battery voltage from the large battery cable to energize and spin the starter. I don't think I've ever had to replace a starter relay on these but have replaced a large number of starters with bad solenoids and bad Park/nuetral switches. The "crank" fuse could also be bad but that is also pretty rare.

when it wont start, turn your headlights on, see if they work if they dont, find out why. When it wont start, take a wire from the positive battery terminal and touch it to the small post on the starter solenoid, it should crank. If it now cranks, theres a problem between the ign switch and the starter solenoid.

I don't think so. I got a 95 and I've done all kinds of electrical checking for various things and to my knowledge there isn't. There's fuses for the ignition and engine along with other electrical items but no specific computer fuse that would turn off a computer. I assume the car won't start?

If your car is simply not starting it could be something as simple as the neutral safety switch if you only hear a click turning the key. Disconnect under left side dash. White and has a green and black wire coming from button behind clutch pedal.

If car cranks but just wont start then could be numerous things. Check the 30 and 40 amp fuses under hood. Make sure battery terminals are connected tight and clean with brush tool if needed. If battery is fine and charged, I assume you have checked, then I'd focus on the ignition system.

ignition switch (in steering column)
neutral safety switch (disconnect above pedal)
starter relay (under radio)
starter solenoid
starter

If cranks then neutral, ignition and relay switches are fine
If clicks then ignition and relay fine but neutral switch or solenoid may be bad

Check the battery and cables going to the starter. Weak arc? Possible that the relay needs to be rechecked now. The inertia switch may also be a possibility. Has the car been in a recent fender bender?

did you turn the key fully to towards the dash? take the steering wheel left and right slowely and at the same time turn the key back and forth several times slowly. there is a detent inside the steering column that allows you to ingage the neutral safety switch. this should help.....please rate this thanks.