Question about 1999 Chevrolet Blazer

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The 99 blazer with the problem

With the the CPU the black box under the hood with the 4 plug ins?...How would I go about fixing that?

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Yes, you will have to remove some external couples to actually get to what you need to replace but, yes. your in the right area. use that part number on the outside of the holding box to match up the chips you may need to replace.

Posted on Jan 30, 2009


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Need to know location 96 4.3 blazer relay box under hood. i dont know where it is or what it looks like. thankyou kathy.

The only relay box I know of is in your glove compartment. Just went through changing a fuel pump in my 96 and finally located it in there. Dealer told me it was under the hood. Little black cover pops off and there are 3 relay's inside.

Sep 22, 2010 | 1996 Chevrolet Blazer

1 Answer

Will not engage in 4wd, sliding all over and wheels just spining, 200 Chevy Trailblazer

If your Blazer has push button 4wd check your fuse under the hood. and have some body listen to the black box on the side of your transfer case while you try shifting it into 4 hi and 4 low... if it doesnt make any noise its your shifting box.

Feb 17, 2010 | 2000 Chevrolet Blazer

1 Answer


lift the hood,straight back in the center of the fire wall behind the throttle body,there is a small black relay,replacing this should do it.

Dec 16, 2009 | 1999 Chevrolet Blazer

1 Answer

99 chev blazer, service 4wd light is on. Simple things to check before the mechanic

There are a couple of fuses you will want to check. They are located in the under hood fuse box. The TBC ( truck body controller) and ATC (automatic transfer case) fuses.
If both are good, take the truck to your local Auto Zone and ask them to scan the vehicle for "trouble codes". Write the codes down and respond back.
Below is a diagram of the under hood fuse box and the fuse locations.


Oct 10, 2009 | 1999 Chevrolet Blazer

1 Answer


try replacing the eng1 fuse 15amp under the hood in the black fuse box. I had the same problem and this fixed my problem.

May 26, 2009 | 2000 Chevrolet Blazer

1 Answer

Broken hood

look under the car or behind the grill there should be a black cable running to the under side of hood.if you ''skin'' the black plastic back you will find a metal take two pairs of to hold the black casing and one to pull the wire.that should open hood.once hood is open you'll see where cable attaches to hood latch.that cable needs replacing.

Mar 30, 2009 | 1999 Chevrolet Blazer

2 Answers

Where is fuel pump relay located

the relay is either located in the large fuze box under the hood, when u locate this fuze box open it and under the cover it will have a picture of where the relay is in the box, or its located on the fire wall under the hood on a rack with a couple of other relays. hope this is helpful please rate me

Jan 12, 2009 | 1994 Chevrolet S-10 Blazer

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