LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Time for a tune up, what do I need?

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Old Apr 26, 2005 | 11:47 AM
  #1  
pvkn1ght's Avatar
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Time for a tune up, what do I need?

Looking for some tune-up advice:

84k mi, original plugs/wires/opti,
fuel pump, SLP clutch & HondaATF done at 67k,
Mobil1 every 3500mi, car is a daily driver w/ just an intake&exhaust

What I plan to do so far:

Plugs, wires, complete opti (don't know which wires to run yet)
TB & manifold cleaning?
Injector service/cleaning
Differential fluid change
Coolant flush
Fuel filter

What else would be good to do at this point? -Brian

Last edited by pvkn1ght; Apr 26, 2005 at 01:49 PM.
Old Apr 26, 2005 | 12:10 PM
  #2  
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Re: Time for a tune up, what do I need?

Maybe some o2 sensors
Old Apr 26, 2005 | 12:43 PM
  #3  
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From: in my skin, ben!
Re: Time for a tune up, what do I need?

Yes, O2's.

My opinion on the injector cleaning is if you're gonna do it, don't mess with jiffy lube type stuff or canned cleaners - take them off and send them to someone or have a shop with the machine clean them properly. Personally, I'd take them off and have someone clean them and flow-match them while they were at it. Just depends on how serious you are. I say all this b/c you seem pretty diligent.

If you use seafoam, do it before the plug/O2 change to avoid contaminating/coating them with chemicals.
Old Apr 26, 2005 | 01:01 PM
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Re: Time for a tune up, what do I need?

I'm in the process myself.

I've got Plugs
Wires
Just did opti literally 1k ago
Fuel filter
Air Filter cleaning (i've got a K&N)
4 new o2 sensors
Coolant Flush/replace with new cap
Tranny fluid replace
Differential fluid replace
Oil change
Half assed injector cleaning (the BG deal where they hook it up to a machine and run the cleaner through it.. not as good as bench cleaning but better than a can.. hey, i had a coupon)

I think that's about it.. you could probably change/clean your breather too if you wanted to and do PCV valves as well.
Old Apr 26, 2005 | 01:48 PM
  #5  
pvkn1ght's Avatar
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Re: Time for a tune up, what do I need?

02 sensors sound like a good idea. Is it very hard to replace them yourself? I am planning on having a shop handle the coolant, diff fluid, and opti.

Recommended plug wires? & differential fluid?

BTW - Rashiki, what kind of Edlebrock headers are you running and how do you like'em? (performance? quality? plug access?)

Last edited by pvkn1ght; Apr 26, 2005 at 01:55 PM.
Old Apr 28, 2005 | 09:12 AM
  #6  
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Re: Time for a tune up, what do I need?

be honest with ya, i don't know what model they are, they were on the car when i got it at 86,000 miles. They're shorties and sound pretty good with no cats through a flowmaster muffler. Plug access wasn't all that bad since they're shorties. I haven't had a problem with them as far as maintanance goes. They've got provisions for EGR too if you're into emissions.

They're about to be replaced by some arizona speed and marine headers witha random tech Y pipe with the high flow cats and a borla muffler. I'll take pics of 'em when i get the 'brocks off.
Old Apr 28, 2005 | 10:31 AM
  #7  
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Re: Time for a tune up, what do I need?

Originally Posted by pvkn1ght
02 sensors sound like a good idea. Is it very hard to replace them yourself? I am planning on having a shop handle the coolant, diff fluid, and opti.

Recommended plug wires? & differential fluid?

BTW - Rashiki, what kind of Edlebrock headers are you running and how do you like'em? (performance? quality? plug access?)
O2's are a bit of a pain. I got to the passenger's side from the top with several extensions and a swivel joint. I got the driver's from the bottom. You'll need to spray them with a penetrant several times before you go to take them out. The heat and age sortof bond them to the y-pipe. Just keep working them back and forth, in and out slightly until they come out. Be careful or you'll damage the bung. Only use AC Delco sensors; others have caused problems. Advance Auto had them for a good price when I got mine.

Plug wires - man you'll find LOADS of opinions. I run Accel 9000's with heat protector boots and I like them. I'd say Accel, Taylor (do a search) or oem.

Diff fluid - I'd go with normal diff fluid plus GM friction additive for the limited slip if you have it. Synthetic has been known to make the ls act funny.
Old Apr 28, 2005 | 11:39 AM
  #8  
pvkn1ght's Avatar
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Re: Time for a tune up, what do I need?

Thanks for the info!
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