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Please disconnect the battery. You can be careful and get it done ok with everything connected to save your clock settings, but its not worth it. I welded a socket to the air injection pipe.
If you get it up high enough and disconnect the battery, should be no problems. If there are shims on the old starter, re-use them.
One of the bolts is a booger to get a socket on.
I used a 1/4" drive long extension and socket and reached it with only minor deformation of the cat heat shield.
It's easier to get the wires off if you unbolt the starter first and move it forward slightly. Also remove the knock sensor wire shield then the wire to the knock sensor (pinch it to pull it off) to make more room.
Good luck.
PS And yes, by all means, disconnect the battery first!
Definitely disconnect the battery. Particularly if you're going to change the fuel filter while you're under there. It's too easy to set off a spark by touching the solenoid, knock sensor shields or some other component with your tools.
One of the bolts is a booger to get a socket on.
I used a 1/4" drive long extension and socket and reached it with only minor deformation of the cat heat shield.
It is... get the socket up in there before attaching it to the extension, and nothing should need to be deformed. I didn't find anything about the knock sensor to be an obstruction.
Originally Posted by jrp
My father & I had a hell of a time trying to remove the starter, but we eventually did it without removing any extra parts. I found that it helped to get the socket up behind the cat & onto the bolt head before attaching the extension & ratchet. The space is tight, so a screwdriver also helped to get it into place.
I'm not sure about new starters, but the refurbished unit I bought was missing the gasket seal which isn't available anymore according to a local Chevy dealer. I had already traded in the core, so I bought some gasket material & cut a new seal.
Definitely disconnect the battery. Particularly if you're going to change the fuel filter while you're under there. It's too easy to set off a spark by touching the solenoid, knock sensor shields or some other component with your tools.
I'm not sure (now) why anyone would suggest not to. In my younger days, I let a fool of a roommate talk me into letting him replace the alternator in my Malibu wagon without disconnecting the battery. Fool move on my part as well, but it was the third time around and I was sick of doing it myself.
The fireworks/smoke show from the starter area was fun to watch, but it sure complicated matters.