2001 Blazer door hinge pins and bushing replacement

https://raybuck.com/replace-chevy-gm-truck-door-hinge-pins-bushings/

Remove the door spring, old hinge pins and bushings:
1.Remove the retainer clip on the top of the top hinge pin with a screwdriver and pliers. Start to wiggle it loose with the tip of the screwdriver and then grab it and work it loose with the pliers.
2.Remove the door spring behind the hinge - between the hinge and the door itself - by locating the end of the spring and inserting the screwdriver between it and the hinge. Pry, using the door as leverage, until the spring pops out.
3.Spray penetrating oil on the top and bottom of the pins, at the bushings, to make it easier to hammer the pin out.
4.Place your long extension on the top of the pin and carefully hammer down to dislodge the pin, taking care not to hit your windshield or another part of your vehicle.
Now, it's time to grab your assistant!
5.Remove the retainer clip on the bottom of the bottom hinge pin with a screwdriver and pliers. Start to wiggle it loose with the tip of the screwdriver and then grab it and work it loose with the pliers.
6.Place your jack to hold up the end of the door to support the weight when the bottom pin comes out. Have your assistant hold the door so that it stays on the jack and doesn't fall. Pro tip: You can use a 2 x 4 piece of wood to better distribute the door's weight.
7.Spray penetrating oil on the top and bottom of the pin, at the bushings, to make it easier to hammer the pin out.
8.Carefully hammer up from the bottom to dislodge the pin, making sure your helper is holding the door firmly on the jack to support the weight. You may need to have your assistant gently wiggle the door if the pin is binding on the hinge. You can also grip the top of the pin with pliers once you start to work it loose and tap on your pliers with the hammer to fully dislodge and remove the pin. Pro tip: You can use a rag to protect the paint on your door by covering the area with it before hammering upward on the pin.
9.Use your flathead screwdriver to pry the old bushings out.
Now replace the old hinge pins and bushings and put the door back together:
10.Insert the new bushings, taking care to respect the different sizes and where they are located on each hinge. Pro tip: For the top hinge, the larger bushing goes in the bottom part of the hinge while the smaller bushing goes in the top part of the hinge. For the bottom hinge, the larger bushing goes in the top part of the hinge while the smaller bushing goes in the bottom part of the hinge. In both cases, the head of the hinge bolt goes at the larger of the two bushings.
11.Gently hammer the four bushings into place. Remember that the bushings go in the vehicle part of the hinge, not the door part.
12.With the weight of your door still on the jack, work with your assistant to align the hinges and start to slide the hinge pins into place through the bushings - bottom first, then top. Use a hammer to gently tap at first, then hammer more firmly at the end to fully engage the pins in the new bushings.
13.Place your new retainer clips over the bushings and use your small socket or a small hollow piece of tube to hammer the retainer rings in place, ensuring they are fully seated to keep the pins from coming out.
Reinstalling the door spring with or without a GM door spring tool:
14.If you have the specific GM door spring tool (spring compressor) for replacing the door springs, follow the instructions included with the tool.ORIf you DON'T have the GM spring tool, you can compress the spring in a vice and use plastic zip-ties to keep it compressed while you install it.
Pro tip: Install your three zip-ties loosely before you compress the spring and tighten them once you have the spring in the vice.
Carefully hold the spring by the side, not the ends, in case the zip-ties break. Make sure you wear eye protection as you push the compressed spring into place.Carefully cut two of the zip-ties. It can help to close the door slightly as you do this and also rotate the compressed spring to access the second zip-tie. It is difficult to cut the third zip-tie, but it will quickly break on its own as you open and close the door, popping the spring into place.

1994 to 2003 Chevy 10 GMC 15 Blazer and Jimmy Door Hinge Pin Replacement this should help you

Are you replacing the bushings when you replace the pins? The fit should not be so loose that your pin just falls out.

a lot of times when the hinges are worn out, the easiest thing is to go to a salvage yard and get different ones,its sometimes faster to change them entirely than to take them apart..sometimes the actual hinge pins arent able to be serviced so this is a better option..good luck..

Chevy blazers are ******* bushings. You can get bushings at any autoparts store. The key to keepinng them in good shape is lubrication.

I have done a 100 of these.

The hardest part is going to be to reinstall the spring on the lower hinge arm. this is not a screw but rather a pin.
There are two hinges that hold the door to body.
when the upper and lower pins are removed the door will come away from body, it is important that before you remove the pins you take a look at the hinges.
Pay close att. to the way the hinges sit inside each other and the way the pins go in. see if they go from top to bottom or from bottom to top. also note where the copper bushings sit in hinges. each hinge has one pin and two copper bushings top go into hinge.
Over time the pins and bushings wear out ,making door hard to open and close. When the pins and bushings get so bad that the bushing is worn out and then the pins are now wearing into the hinge hole itself then this get tricky. if hinge hole is egg shaped the new bushings will not last. the door will hang again in a few weeks. this is where is get costly, the hinges now need replacing. i have gotten good at welding the holes and filing them back to shape but this takes skill or hole will be wrong and bushing will not fit or line up.

Here is a youtube video to help you.
Take note. put jack stands under door with cloth to avoid scratching door.this is to hold door when pins are removed. have somone help you, they will hold door on stands. the wires will still run through door, pull door away from body a little to allow room to work.remove the spring, it will fall out as you remove pins, remove old bushings, clean hinge area and holes,next install new bushings, apply lube to holes for pins and on bushings, slide door back on frame hinges and install pins, next slide lock washers on pins to hold pins. last is the spring. you will need a spring tool, you may rent one at auto parts store. hope this helps good day.

You can buy a hinge repair kit at most good auto parts stores.

You will have to support the door while open, and remove the pin from the bad hinge. Most kits then require you drill a hole where the pin was and press in a bushing. Reinsert the pin (or the new pin if your kit came with it) and remove whatever was supporting your door.

This can be done with one person if you're careful, but it's easier if you have a helper to keep control of the door.

You can also remove the hinge completely on certain vehicles, allowing to repair the hinge at a workbench.

the hinge pins rides on brass bushings. if the door does not latch replace the pin and bushings with oversized ones available at Chevrolet parts department
you will need a sring compressor which is available at Auto Zone

Get a set of hinge pins and bushings. There is a tool that you can get at harbor freight or tool king for removing the bushings. I use a floor jack and a 4x4 block of wood to support the door. you will need a spring compressor to remove the door "hold" spring. Once you have that removed, you can use a brass drift or similar rod to tap the pins out. once they are out the door will be resting on the wood. I use heater hose to wedge between the fender and the door to prevent dents and scratches. tap out the bushings. ever so gently tap in the replacements. apply a generous helping of white grease to the bushing and pin. line up the door and insert the pins. you may have to apply an ever so light amount of tapping pressure on the pins to set them final. reinstall the door spring and lube the joints with white grease. be proud of yourself as your just saved a **** load of money.

Most likely the hinge is not bad, but the hinge pin bushings are bad. You can buy the hinge pins and the bushings at your local auto parts store. They come in a kit. Hope this info is helpful.