Noticed the car was stumbling when it warmed up after I let her sit. So I wanna do small tune up wires, sparks plugs and fuel filter.

Is this something I can do myself or take it to shop ? I noticed the driver side looks like pain in the *** to do.

 

Assuming your car has the stock wire GM wire looms, getting the old wires off will be fun , then the entertainment increases with (in particular), the #8 spark plug - passenger side against fire wall and last but not least the fuel filter should be something that is easy to do, but dont let it fool ya - its a PITA - especially if your dealing with the trying to get to it on the passenger side frame rail near the CAT - its like you dont have any room ........now having said all this you CAN do this yourself - just be prepared to take your time and do one thing at a time until your finished with that portion of the project and then move onto the next.

Good luck and let us know how it went !

 

Not sure if its stock wires. Sure looks like it since stock wires have numbers on them. Owner said spark plugs have 20k miles on them.

I just bought some Taylor 74225 wire set at summit racing for $60. Still looking around for plugs.

 

I too have done both. Feeding the spark plug wires through the correct little passage ways on the drivers side up to the opti is a pain. I did the old trick of duct taping the new wire to the old one and pulling it through. And I did mine when I replaced my optispark so I had a bunch of stuff of the front of the engine at the time. Not a barrel of laughs, but it is do-able.

The fuel filter. Well I thought it would be a 5 minute job. It isn't. It is tucked away under the passenger side door and you have to use ALL of the slack in the fuel line (up to the fuel rail) to be able just to just barely have room to get the fittings off and remove/replace the filter. And since I was directly under it while working on it, I got a good taste of 93 octane when it finally did come off.

I don't want to be too negative. Both jobs can be accomplished. Just allow more than enough time and have the proper expectations. And remember the three P's of auto maintenance (especially on these items on our C4's). Patience. Persistence. Prayer. In any order, then repeat.

 

Changing the plug wires on an LT1/LT4 Corvette is not a lot of fun, but it can be done. Here are a few tips:

1. Raise the front end of the vehicle to a more comfortable working height.

2. Remove the inner fenderwell center panel on the driver's side. This will allow you to both see and do the job much more easily on the driver's side. You may also find it helpful to remove the wheel.

3. Unbolt the ASR bracketry from the frame, so that you can slide the ASR unit around to get it out of your way.

4. Unbolt the power steering pump so that you can move it forward around a half inch. This will make it much easier to sneak the plug wires in/out behind the pump.

5. Remove the serpentine belt and tensioner.

6. Use dielectric grease in the boots at both ends of the new wires. Be sure to "burp" the air out of the boots after you get each of them pushed firmly into place, so that the trapped air doesn't try to push the wires off later.

Some guys report that they've had decent success accessing the Opti-end of the plug wires from underneath of the car, and that this saved them the trouble of removing the belt and tensioner. I haven't tried this, so I can't comment.

Take your time, work with care, and pay attention to what you're doing. The OEM replacement plug wires from your Chevy dealer are high quality parts, and will route (and fit into the wire looms) correctly. Run the new wires properly, and make sure they stay away from anything that moves, is sharp, or gets hot.

The passenger's side is not such a bad job. The driver's side is a Queen Royal Bitch (mostly because all of the belt-driven accessories are hanging on the driver’s side of the front of LT1/LT4 engines, and they leave little room for you to work or see what you’re doing). With plenty of patience, beer and Band-Aids, you'll get it done.

Live well,

SJW

 

my car is doing the same thing i just bought ngk tr55 plugs and a set of autolite wires i hope this repairs it or i wil be getting a electric water pump and a new opti and a radiator flush and new hoses if needed

 

i will agrree that plug number 8 is a new level of hell. i did replace all of the plugs on the right side of the car and all of the plug wires today on that side and the car is running some what better i guess when i get the other side done it will be running great.

 

Plug number 8 isn't so bad with the right tools but the wires on the other hand are a freaking nightmare.

 

Thanks for the tips guys. I haven't installed mine yet been snowing here on and off. I'm also waiting for my brakes to get here so I can install those too while the tires are off.

 

I just did this on mine. what i did was raise the front of the car a couple of feet off the ground. That way i was able to get access to the wires at the opti from under the car. I removed the serpentine belt, the alternator, and moved the compressor out of the way. Didn't have to break the a/c lines, just moved it to the side. Sounds like a pain, but really only took about 15 mins to do. After that you can really see where the wires pass inbetween the block and bracket. I moved the ASR too. Then I pulled the lowest plug wire off the opti and pulled it out, then marked on paper what cylinder it was. Mine had the numbers on the wire.
I did that with all of them, one at a time. Then installed them one at a time. It looks like a pain to pull the new wires through that hole back to the opti, but it really wasn't that hard. And I was installing MSD's 8.5 wires. Passenger side is simple. I was also able to reuse my old plug wire separators. I just enlarged the holes alittle to compensate for the thicker wire.