Welcome to the Corvette Forums at the Corvette Action Center!

98 Vette Radiator Drain Plug

R

rbcgb

Guest
I am planning on changing the coolant in my 98 vette. I located the plastic winged drain plug on the passenger side of the radiator and tried to loosen it by hand but it wouldn't budge. Before I broke something I figured I would look through my Helm service manual. The manual says "remove the plug", which isn't too helpful. Do I need a special tool? Will pliers work? Do I turn it clockwise or counterclockwise?
 

wishuwerehere82

Well-known member
Joined
Sep 6, 2003
Messages
2,314
Location
Rochester, NY
Corvette
Red '82 Coupe,Sebring Silver '98 Coupe
Most petcock drain plugs are opposite of screw threads. Turn clockwise to open.
 

mqqn

Well-known member
Joined
Apr 12, 2004
Messages
437
Location
In The Cornfield
Corvette
02 EB Z06 / 99 BLK Coupe
Hi rbcgb -

The radiator drain cock has normal threads - remove counter-clockwise.

It should only be tightened to 18 lb in.

best regards -

mqqn
 

LLC5

Well-known member
Joined
Sep 28, 2004
Messages
2,299
Location
Wa.
Corvette
98 black 6spd convert.
My OEM radiator petcock turns left 1/8-1/4 turn and pulls out to drain. Push in and turn right to tighten. Never seen any left hand thread petcocks.
 

99WhiteC5Coupe

Well-known member
Joined
Jan 19, 2002
Messages
293
Location
Cincinnati, Ohio, USA
Corvette
1999 White Coupe
rbcgb,

To drain the antifreeze in my 1999 C5, I turned the radiator petcock 1/4 turn counter clockwise, then pulled the petcock outward. I have seen posts where C5 owners broke the petcock by trying to turn it further.

Good luck.
 
R

rbcgb

Guest
Thanks for the information. I was able to open the drain without incident. I only wish the service manual was a bit more clear on the procedure. It just shows that there is no substitute for advice from someone who has been there before.
 

Corvette Forums

Not a member of the Corvette Action Center?  Join now!  It's free!

Help support the Corvette Action Center!

Supporting Vendors

Dealers:

MacMulkin Chevrolet - The Second Largest Corvette Dealer in the Country!

Parts/Accessories:

Vetteskins

Advertise with the Corvette Action Center!

Double Your Chances!

Partners

Top Bottom