Go Back   Truck Forums > Chevrolet/GMC Truck Forums > Chevy Silverado/ GMC Sierra Forum
Sign in using an external account
Register Forgot Password?
Search

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 07-07-2010, 02:41 PM
timber74wolf's Avatar
TruckForum Addict
 
Join Date: Apr 2008
Location: Houston, Texas
Posts: 819
Send a message via Yahoo to timber74wolf
Question Radiator drain

Was going to drain my cooling system and flush it before I put fresh antfreeze in it, but I cannot figure out how to drain the radiator. I see the drain, but there is not a screw to unscrew for it to drain. Anyone seen this before? With that said, is the only way to drain the radiator is to pull loose the lower radiator hose? Also I have teh smaller radiator measuring 28 or 29 inches across the radiator viens between the reservoirs on each end. Any idea how much radiator fluid it holds?
This ad is not displayed to registered members.
Register your free account today and become a member on Truckforums!
__________________
2004 GMC Sierra Extended Cab
-5.3 Vortec
-K&N Series 77 CAI
-TB Bypass & removed insulators
-Superchips Flashpaq
-Catback System with Stainless Steel Exhaust Tips done by Mr. D's Muffler shop off East Hardy & Gulfbank
-Vette Servo
-Factory 20s with Michelin LTXs
-Spray n liner with a Truxedo bed cover

Last edited by timber74wolf; 07-07-2010 at 04:36 PM.
Reply With Quote
  #2  
Old 07-08-2010, 01:33 PM
timber74wolf's Avatar
TruckForum Addict
 
Join Date: Apr 2008
Location: Houston, Texas
Posts: 819
Send a message via Yahoo to timber74wolf
Default

Okay I bought 2 gallons of radiator fluid; Peak Extended life. However after talking ot the mechanics at work this morning I am worried I bought the wrong stuff. Good thing I have not poured it int the system yet. Anyhow I was told that I should buy the radiator fluid that has the Dex Cool in it. Reason being that the Peak or Prestone both being Extended Life will attack the O-rings and gaskets causing future failures. I was told to get the coolant with the Dex Cool in it. Is this true or will the Peak be safe? Just trying to postpone an early failure of gaskets or O-rings.
__________________
2004 GMC Sierra Extended Cab
-5.3 Vortec
-K&N Series 77 CAI
-TB Bypass & removed insulators
-Superchips Flashpaq
-Catback System with Stainless Steel Exhaust Tips done by Mr. D's Muffler shop off East Hardy & Gulfbank
-Vette Servo
-Factory 20s with Michelin LTXs
-Spray n liner with a Truxedo bed cover
Reply With Quote
  #3  
Old 07-08-2010, 06:08 PM
chevy112488's Avatar
Senior Member
 
Join Date: Feb 2007
Location: Jackson, TN
Posts: 985
Default

if you're only draining the radiator and not doing a full system flush, you need to get whatever is already in the system (pink/orange is dexcool, green is standard). because you wont get all the coolant out that way.

the truck holds about 4 gallons total, so you should be good on two gallons. as far as the radiator hose, as far as i know its the only way, and its definitely the easiest.
__________________
rip: 2002 silverado 2wd 4.8, , airaid mit, trans dapt tbs, redneck ram-air, ravin muffler, no cats, dual 4" tips, 265/75/r16 cooper discoverer s/t

gone: 1989 GMC Jimmy fullsize, carb 350, TH350, NP203, 33x12.50x15 BFG All Terrains, front and rear lockers

Current: 1997 Chevy z71 ext cab and 05 gto a/t
Reply With Quote
  #4  
Old 07-08-2010, 06:57 PM
timber74wolf's Avatar
TruckForum Addict
 
Join Date: Apr 2008
Location: Houston, Texas
Posts: 819
Send a message via Yahoo to timber74wolf
Default

Cool appreciate the information. I am in the process of fl;ushing the whole system by emptying the systema nd adding water. Then I will drive it and drain it. I will repeat the process a few times and I will be good to go.
__________________
2004 GMC Sierra Extended Cab
-5.3 Vortec
-K&N Series 77 CAI
-TB Bypass & removed insulators
-Superchips Flashpaq
-Catback System with Stainless Steel Exhaust Tips done by Mr. D's Muffler shop off East Hardy & Gulfbank
-Vette Servo
-Factory 20s with Michelin LTXs
-Spray n liner with a Truxedo bed cover
Reply With Quote
  #5  
Old 07-08-2010, 09:59 PM
chevy112488's Avatar
Senior Member
 
Join Date: Feb 2007
Location: Jackson, TN
Posts: 985
Default

yep that ought to work out good for ya.
__________________
rip: 2002 silverado 2wd 4.8, , airaid mit, trans dapt tbs, redneck ram-air, ravin muffler, no cats, dual 4" tips, 265/75/r16 cooper discoverer s/t

gone: 1989 GMC Jimmy fullsize, carb 350, TH350, NP203, 33x12.50x15 BFG All Terrains, front and rear lockers

Current: 1997 Chevy z71 ext cab and 05 gto a/t
Reply With Quote
  #6  
Old 07-09-2010, 08:31 PM
timber74wolf's Avatar
TruckForum Addict
 
Join Date: Apr 2008
Location: Houston, Texas
Posts: 819
Send a message via Yahoo to timber74wolf
Default

Between the motor and the radiator it must hold more than 2 Gallons. I let it drain and drain and then I even took my Air compressor hose and blew air through the reservoir and forced more water out. So after filling it with a gallon of antifreeze and a gallon of distilled water it is checking low. So I am letting it cool over night and recheck it in the morning before I add another bit of 50/50 mix.
__________________
2004 GMC Sierra Extended Cab
-5.3 Vortec
-K&N Series 77 CAI
-TB Bypass & removed insulators
-Superchips Flashpaq
-Catback System with Stainless Steel Exhaust Tips done by Mr. D's Muffler shop off East Hardy & Gulfbank
-Vette Servo
-Factory 20s with Michelin LTXs
-Spray n liner with a Truxedo bed cover
Reply With Quote
  #7  
Old 07-10-2010, 12:11 AM
chevy112488's Avatar
Senior Member
 
Join Date: Feb 2007
Location: Jackson, TN
Posts: 985
Default

total radiator and engine it holds about 4 gallons...
__________________
rip: 2002 silverado 2wd 4.8, , airaid mit, trans dapt tbs, redneck ram-air, ravin muffler, no cats, dual 4" tips, 265/75/r16 cooper discoverer s/t

gone: 1989 GMC Jimmy fullsize, carb 350, TH350, NP203, 33x12.50x15 BFG All Terrains, front and rear lockers

Current: 1997 Chevy z71 ext cab and 05 gto a/t
Reply With Quote
Old 07-10-2010, 12:11 AM
 
 
 
Reply



Tags
2004, 48, avalanche, chevy, drain, engine, flush, gmc, hold, pick, radiator, sierra, silverado, sonoma, vortec, water

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory

Our Sponsors
Advertising
All times are GMT -5. The time now is 12:55 AM.

Internet Brands, Inc.



SEO by vBSEO ©2010, Crawlability, Inc.