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

Complete flush??

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Old Nov 12, 2014 | 03:21 PM
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Default Complete flush??

Gotta 92 and wondering what you guys had to pay for a complete coolant flush ?

I just put my 92 away for the winter and was gonna do a complete flush but opted till next spring

Last edited by lectroglide; Nov 12, 2014 at 06:05 PM.
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Old Nov 12, 2014 | 03:28 PM
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Just remember it won't be a complete flush without removing the knock sensors (2)..... I know this doesn't answer your question about cost, but some think draining the radiator is a flush.... so beware what the person doing the flush is going to include.

FYI: https://www.corvetteforum.com/forums...sor-flush.html

Last edited by don hall; Nov 12, 2014 at 06:04 PM.
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Old Nov 12, 2014 | 05:31 PM
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Originally Posted by seabright
Just remember it won't be a complete flush with removing the knock sensors (2)..... I know this doesn't answer your question about cost, but some think draining the radiator is a flush.... so beware what the person doing the flush is going to include.

FYI: https://www.corvetteforum.com/forums...sor-flush.html
thanx for the warning and was already aware! BTW what does it mean "self bleeding? I also have a LT-1

Last edited by lectroglide; Nov 12, 2014 at 06:03 PM.
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Old Nov 12, 2014 | 06:15 PM
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Originally Posted by riversidedan1
.....BTW what does it mean "self bleeding? .......
Some earlier C4s required the air to be bled from the cooling system
if the system had repairs, flush, etc. The LT1 has the expansion reservoir positioned at the highest point in the engine bay which allows any air in the system to move to the reservoir, and eventually, to the overflow bottle when the rad cap opens, and then to the atmosphere as the overflow bottle is not pressurized. No need to use the bleed valves as any air will bleed itself out of the engine.
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Old Nov 13, 2014 | 09:19 PM
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Default what is bleed procedure for l98?

fill reservoir and rad then add and open to atmosphere while running?
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Old Nov 13, 2014 | 09:30 PM
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Default Cooling system

Originally Posted by riversidedan1
Gotta 92 and wondering what you guys had to pay for a complete coolant flush ?

I just put my 92 away for the winter and was gonna do a complete flush but opted till next spring
Have a full flush and fill with 50-50 mix, I think it ran around $60 per vehicle, and I had 4 done this year.
If you have delayed doing yours, insure the coolant is good to the lowest temp you might encounter.
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Old Nov 13, 2014 | 11:16 PM
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Originally Posted by riversidedan1
Gotta 92 and wondering what you guys had to pay for a complete coolant flush ?

I just put my 92 away for the winter and was gonna do a complete flush but opted till next spring
I had a complete flush done on my 88 verte. when I got it this August I believe. The car had 99k on the clock and I wanted to take it to Ca. I had to take it to a Vette shop and had everything flushed and cleaned and changed out, brakes, tranny, engine, rad, diffy, I mean everything. I don't have the room to work on it so I had no choice. I think I ended up spending about $150-175 all total. To me it was still cheap for the sake of not having to worry.
Tommy
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Old Nov 14, 2014 | 12:11 AM
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Originally Posted by Tommycourt
I had a complete flush done on my 88 verte. when I got it this August I believe. The car had 99k on the clock and I wanted to take it to Ca. I had to take it to a Vette shop and had everything flushed and cleaned and changed out, brakes, tranny, engine, rad, diffy, I mean everything. I don't have the room to work on it so I had no choice. I think I ended up spending about $150-175 all total. To me it was still cheap for the sake of not having to worry.
Tommy
holy cow! only $175 for all that? geeez man you must be livin right!

Last edited by lectroglide; Nov 14, 2014 at 12:54 AM.
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