Slide the orange boot on the steering shaft downward there is a flat area on the steering shaft turn the steering wheel so the flat is on the bottom. Remove your left front tire to get too the spark plug, there is a flap just lift it and you can get to the plug. You may need a swivel socket, but it can be done with a hex head socket. Loosen plug a few turns then you can use a hose (vacuum) to tightly fit over the pocilen then remove plug. Reverse procedure to install. Another possibility is to snap the porcilen off easer to remove plug base. Its still not an easy job. You need perseverance!
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if your trying to remove the center spark plug try putting socket on it first then use wrench on end of socket or there is a 7/16 bolt at end of steering shaft that can be removed - slide shaft off and move away from spark plug to gain more room to work
It's an easy but physically demanding if you do not have a pneumatic set of tools. The specialty tools you will first have to get your hands on are a Tie Rod remover. otherwise know as a (pickle fork). There are two sizes of these large for ball joint removal and small for Tie rod removal. Looks like a big 2 pronged fork. The next Tool is a Pitman arm remover. Usually you can rent or barrow them from your local auto parts store. Drive your blazer up on to a set of repair ramps. Block the rear tires.The bolt to the center link from the pitman arm has a crown nut on it with a cotter pin going threw it. Remove the cotter pin.and remove the crown nut. Then with the Pickle fork and a 5 lb. sledge hammer. place the pickle fork between the center link and the pitman arm bolt. Give the end of the Pickle fork as many good blows on the other end as it takes for the center link to release from the pitman arm. Once that is done take a break I know you'll need it. Next is the Pitman arm to the steering gear shaft. Hope you can get your hands on a good breaker bar or an impact wrench and a socket large enough for the steering gear shaft nut. Remove the nut. Then place the Pitman arm removal tool between the pitman arm and the steering gear housing. Start tightening the threaded rod the remover up against the shaft. It is hard as hell to remove because pitman arms rarely go bad. It's usually the center link that fails.It will take a lot of strength to remove and you may want to use a little penetrating lube on it. Once you get that off you may want to replace the steering gear shaft seal as well. Otherwise just reverse the removal steps. The shaft is notched and so is the pitman are make sure they line up. then Torque to spec.s If you plan on keeping the blazer get a repair manual from your auto parts store. It will help you put a great deal.
Parts stores sell an inexpensive steering wheel removal puller. Follow repair manual removal procedure, so the air bag doesn't activate. The steering wheel is retained by a large nut on the steering wheel shaft. Remove the nut, and attach the puller to wheel-it should pull right off.
your dimmer switch is mounted on the left side of the column & ignition switch is mounted on top of the steering, you could have a short in this area, there is a rod that goes from the lever to the dimmer switch, look for bare wires, remove the trim below the column, remove the clip for the shifter indicator & remove the 2 bolts holding the column up, this will give better view of the switches & wires.
You will have to take the steering knuckle completely out of the way, which requires getting the ball joints loose from the knuckle. You will also have to take the bottom bolt out of the shock because there is not enough clearance to get past it. The Blazers had two different was of holding the CV shafts to the front axle housing, a series of 15mm bolts or a retainer clip on the shaft that goes into the differential. If you don't see bolts, then you should be able to pop the CV shaft out with a pry bar. Give it a few good shoves to reinstall the new shaft.
Hope this helps. Good luck!
Its located in the head and accessable through the top of the engine. Very easy too replace!! You must remove the plastic black cover, and you'll notice 4 blk ignition coils. Remove those!! And the sparkplugs will be at the bottom of those shafts. Make sure to use a sparkplug socket, otherwise it will be difficult to take them out of the shaft. Hopefully this helps!!
get a haynes manual for the vehicle, that has step by step instructions with pics and shows everything....you can get this from autozone, pepboys, etc. that is the better manual and will show you everything you need to know plus tell you how to take it out without damaging anything..... hope this helps you....
when I did mine, I had to remove radiator, undo exhaust manifolds from motor, and of course, remove hood. Those 3 things should allow enough room to remove that motor. Of course you'll have a few extras to remove, air cleaner box, air duct, etc, maybe undo steering wheel shaft even. It's been a couple of years since i've did it, but I belive I did have to remove the steering shaft.