C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

105K Maintenance?

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Old Apr 12, 2009 | 11:36 PM
  #1  
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Default 105K Maintenance?

I am getting the 93 LT1 ready for the season, I have done a lot of things to keep her going and I was wondering what kind of preventative Maintenance items should I look at?
I have replaced the following
Clutch/Flywheel
U-Joints
Rear Bearings
front Tires
Hoses
Belt
OLF
Idle Air Control Motor
Dyna Spark
EGR
Weatherstripping
Air/Fuel Filters
Plugs are 30K old
What would you guys think is a common preventative maintenance issues on these?
-Thanks,
Charlie
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Old Apr 13, 2009 | 09:12 AM
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Trans fluid change is all I can think of. I plan to change mine soon. Looks like you're keeping it well maintained
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Old Apr 13, 2009 | 10:14 AM
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I changed my PS fluid to Valvoline 75,000+ fluid.
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Old Apr 13, 2009 | 10:22 AM
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Don't forget to also change the coolant, rear-end fluid and oil.
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Old Apr 13, 2009 | 01:11 PM
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Change the coolant out, PS fluid, and the rear diff fluid should be changed around 100K.

Shocks generally should be replaced at 75K, if they havent been already. You might want to replace some suspension bushings if you feel like going further with maintenance, but its labor intensive for some of them.
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Old Apr 13, 2009 | 09:23 PM
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Default Good Advice

Thanks guys.
I will change the P/S and Rear End. I forgot to say I changed the water pump and coolant last year.
-Thanks again!
-Charlie
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Old Apr 27, 2009 | 08:56 PM
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repack those muffler bearings!!!
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Old Apr 27, 2009 | 09:47 PM
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Originally Posted by 85 500 horse
Don't forget to also change the coolant, rear-end fluid and oil.
Originally Posted by vader86
Change the coolant out, PS fluid, and the rear diff fluid should be changed around 100K.

Shocks generally should be replaced at 75K, if they havent been already. You might want to replace some suspension bushings if you feel like going further with maintenance, but its labor intensive for some of them.
I am only repeating what I have read about changing differential fluid. It should not be changed due to the fact that like synthetic oil in the engine, will cause leaks in older differentials anad that the engineers did not design it to be changed in the vehicles normal lifetime. Can either of you guys comment on that please? Just wanted another outlook on that since it was just thoughts of others.

Originally Posted by Targa86
repack those muffler bearings!!!
What is a muffler bearing?
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Old Apr 27, 2009 | 09:52 PM
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Differential fluid is most definitely designed to be changed, I have changed mine twice and I have 176k miles. Where ever you read that, throw it away and never listen to them again.

Don't forget to change your brake fluid.

Last edited by Randy93; Apr 27, 2009 at 09:56 PM.
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Old Apr 28, 2009 | 10:38 AM
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Don't forget the PCV valve. You wouldn't believe how many high-mileage cars I've seen that have likely never had their OEM unit replaced.

Also, now's a good time to make sure all your interior/exterior lamps and bulbs are still operating.

For instance, a lot of newbie C4 owners are surprised to learn the spare tire door under the car is illuminated by a No. 24 bulb, just like the rear license plate area.

Looks cool as **** when you're cruising at night. ****'s don't know WHAT's goin' on under there.

Last edited by onedef92; Apr 28, 2009 at 10:40 AM.
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Old Apr 28, 2009 | 10:41 AM
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Originally Posted by Randy93
Differential fluid is most definitely designed to be changed, I have changed mine twice and I have 176k miles. Where ever you read that, throw it away and never listen to them again.

Don't forget to change your brake fluid.
Really? Wan't a book, it was on another forum. Non Corvette related. I thought something sounded sketchy then as to why they would sell it aftermarket. Does changing it in very high miles cause negative effects? There is that myth that when you change transmission fluid in high mileage cars, the tranny fails. I believe it's because it was failling anyway. Same applies to the Differential or just more home mechanic hypothesis's ?

Damn Ford owners making up lies.
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Old Apr 28, 2009 | 10:43 AM
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Originally Posted by onedef92
Don't forget the PCV valve. You wouldn't believe how many high-mileage cars I've seen that have likely never had their OEM unit replaced.

Also, now's a good time to make sure all your interior/exterior lamps and bulbs are still operating.

For instance, a lot of newbie C4 owners are surprised to learn the spare tire door under the car is illuminated by a No. 24 bulb, just like the rear license plate area.

Looks cool as **** when you're cruising at night. ****'s don't know WHAT's goin' on under there.
Pictures of what your referring to as in night time?
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Old Apr 28, 2009 | 11:15 AM
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Originally Posted by Sorry Officer
Pictures of what your referring to as in night time?
Turn your parking lamps on in the dark (daylight interior sensor sensitive) and crawl (or look) under the rear of your car.

Look at the spare tire carrier. You should see a light there. Capice?
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Old Apr 28, 2009 | 12:04 PM
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Originally Posted by Randy93

Don't forget to change your brake fluid.
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Old Apr 28, 2009 | 02:04 PM
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Originally Posted by Sorry Officer
Really? Wan't a book, it was on another forum. Non Corvette related. I thought something sounded sketchy then as to why they would sell it aftermarket. Does changing it in very high miles cause negative effects? There is that myth that when you change transmission fluid in high mileage cars, the tranny fails. I believe it's because it was failling anyway. Same applies to the Differential or just more home mechanic hypothesis's ?

Damn Ford owners making up lies.
I have owned most makes of cars, from acura's to volvo's and I have never seen one that didn't recommend changing the fluid every 50k-75k miles. Mine is bone stock and has never leaked,
Trannies are the same way, keep the fluids changed and they will last a long time.
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Old Apr 28, 2009 | 02:15 PM
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Originally Posted by Randy93
I have owned most makes of cars, from acura's to volvo's and I have never seen one that didn't recommend changing the fluid every 50k-75k miles. Mine is bone stock and has never leaked,
Trannies are the same way, keep the fluids changed and they will last a long time.
Thanks. I trust you over them.
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