Jump to content

Coolant Change

Itsme7

Recommended Posts

Itsme7 Enthusiast

Itsme7

Posted
Posted

I recently just picked up a 05 Silverado 1500. It has the 5.3. I want to change the coolant, and am wondering if there is a bleeding procedure in replaceing the coolant? I know i have to use Dexcool, other then that anything i should look for or tips? Thanks very much.

tylerjenkins92@aol.com Senior Enthusiast

[email protected]

Posted
Posted
I recently just picked up a 05 Silverado 1500. It has the 5.3. I want to change the coolant, and am wondering if there is a bleeding procedure in replaceing the coolant? I know i have to use Dexcool, other then that anything i should look for or tips? Thanks very much.

 

When I changed mine, I bought some flush and followed the directions on the bottle, pretty much. The drain is on the bottom drivers side of the radiator and should even have a hose attached to the valve and run up the driver side rad. tank in little plastic holders molded into the rad. tank. I put regular green anti-freeze back in mine because of all the problems and recalls they had with dexcool(do a search on google and you'll find plenty). :lol:

BlackOut V8 Enthusiast

BlackOut V8

Posted
Posted

1) pull the lower rad hose and let that amount drain

2) re- connect hose

3) measure how much came out for reference

4) fill resevoir to full mark

5) with resevoir cap off run the vehicle untill you reach normal operating temp

6) keep and eye on the resevoir while the vehicle is running and keep it at full

 

 

note:

 

- always use GM dexcool only!

- this is not a complete drain but most of it will come out

- should add approx the same amount that was drained so you know their are no problems

 

BlackOut V8

Itsme7 Enthusiast

Itsme7

Posted
  • Author
Posted

Thanks for the tips! I too have read a few problems about dexcool, are there any problems converting from dexcool to reg green prestone coolant? What would the converting include?

tylerjenkins92@aol.com Senior Enthusiast

[email protected]

Posted
Posted
Thanks for the tips! I too have read a few problems about dexcool, are there any problems converting from dexcool to reg green prestone coolant? What would the converting include?

 

You'd just have to do a full flush with some flush you get from an auto parts store. If your red dexcool looks fine, and not discolored and rusty looking, I'd probably leave it with dexcool, unless you just want to switch it over.

Itsme7 Enthusiast

Itsme7

Posted
  • Author
Posted

Thanks. The truck has 74k miles on it, and the dexcool still looks fine. red/pink colored. Did a full fluid change, figured coolant would be next on the list. Can i pick up dexcool at local auto places, or do i have to go to a GM dealer?

tylerjenkins92@aol.com Senior Enthusiast

[email protected]

Posted
Posted
Thanks. The truck has 74k miles on it, and the dexcool still looks fine. red/pink colored. Did a full fluid change, figured coolant would be next on the list. Can i pick up dexcool at local auto places, or do i have to go to a GM dealer?

 

Yes, you can buy it at any auto parts store.

txab Senior Enthusiast

txab

Posted
Posted

Stay with Dex. You will be much better protected using it than the green. Buy 2 gallons of the full strength. You'll need to remove the lower radiator hose to drain it. There is no drain on the radiator anymore. Consider replacing all your hoses. 5 years old and depending on your mileage, they may be due.

 

As stated check your manual, but 14 qts is about right. Get at least 7 of the Dex in. Many people use distilled water to finish off the fill.

 

There is a purge procedure write-up in the Wiki.

 

http://www.gm-trucks.com/forums/index.php?...icle&id=394

jblakeney Senior Enthusiast

jblakeney

Posted
Posted

Keep the Dexcool.... Just change it the same as you should your Regular Green stuff....... Every year or two. Don't fool around and leave it in for 5 years or 100k..... It will become toxic....

 

Yeah the same jerk that decided we did not need the drain plug on the transmission pan.... He decided to take the radiator drain off toooo, and GM thought it would be a grand IDEA....

 

So Drop the lower hose and make a really good mess... Remember to keep the animals inside...... After the coolant has be ran for a couple heat/cool cycles it becomes toxic...

 

Jbo

gmtech121 Enthusiast

gmtech121

Posted
Posted

I've been a Gm tech for 25 years and I can't recall any "recall" involving coolant ever. Dex cool is good stuff. What it doesn't like is interaction with air. If you have a properly sealed system there is nothing better. If you have a coolant leak where air can get in the system (when it cools and would pull air in) it can accelerate corrosion and formation of a rust like material. Not uncommon on the 4.3 litres back in the mid to late 90's.

Itsme7 Enthusiast

Itsme7

Posted
  • Author
Posted

Thanks for the tips. Its a 05 with 74k miles, so its about time to change the coolant. I will just stick with the dexcool as well. Again, thanks a bunch.

BlackOut V8 Enthusiast

BlackOut V8

Posted
Posted

stay with dexcool, I used two jugs and then mixed with distilled water.

 

hope all goes well, make sure to purge the system properly.

 

 

 

BlackOut V8

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Atlas
      2027 GMC Sierra: Official Discussion

      By Atlas · Posted

      Yes, you must have seen my thread on the Blazer. HOT GARBAGE, but I love them anyway. I'm convinced every car guy has a soft sport for an S/T series somewheres. Probably even a Panther too, if I'm being an honest car guy. That doesn't mean they aren't junk. And they definitely don't get better with age. I sometimes play with old cars, but that's by choice. I don't rely on them and they aren't my everyday fleet.   Derek plays the common man on Youtube and that's no doubt where he started. Now he has Youtube money (and Motortrend, etc). You think his crews and his wife ride around in old beaters when they're chasing him and his wrecks across the country? No he's got newer and nicer stuff for that, you'll see glimpses of it in the footage.
    • Atlas
      2027 GMC Sierra: Official Discussion

      By Atlas · Posted

      You refuse to own anything made in this century yet you reportedly own... a 2007 Silverado, which is now almost 20 years old. The dissonance.... turn up your hearing aid?   You clearly don't understand the government contracting process, brother. We send people to die on front lines, keep the public safe, and make people's husbands, wives, children enter burning buildings with equipment from .....wait for it.....   ...the lowest bidder....   Just because something is used for a long time doesn't mean it's good. But it might be cheap and plentiful.   Please, continue to whine about new trucks in a thread dedicated to new trucks, which you've said you'll never own. We get it. Go tell everyone how you're stuck in time on a Panther forum. I mean, Jesus, an 86 isn't even one of the good Panthers.
    • KARNUT
      2027 GMC Sierra: Official Discussion

      By KARNUT · Posted

      It really is comical when people don’t agree or see the reason some people prefer the older vehicles. They become condescending. All the while they may be busting their knuckles on old vehicles. I have found memories of swapping out engines in my old GM cars in a weekend without much hassle. Unlike today. One wrong move a computer will shut you down. Even on something as easy as a brake job. There’s a pretty comical YouTuber called the car wizard. A garage owner who puts it all in perspective. Another Vicegrip garage that’s shows just how tough the old stuff is. 
    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      I was around and remember that era very well, so I'm calling b/s on that statement. If they were that bad no police department or taxi company would've bought a single one ... but they were used in both services (and fire) for DECADES. They were bulletproof and proven. Even the early 21st century ones weren't too bad! The early models were legendary.   Mine is proof, but people like atlas are blinded by agenda and refuse to believe facts right before their very eyes.   Even decades after they were built, a new generation started driving them, posting all their builds and shenanigans on Grandmarq.net and Crownvic.net. The failures would show up then, since they all were deep past 100k-150k miles by that point, and younger drivers tend to be a little aggressive, especially with vehicles than can lay a one-tire fire for as long as you hold your foot in it. They've more than proven themselves over the decades.   The only thing that'll really take them out is road salt. The bodies and sheet metal were garbage. A victim of the cheapout FoMoCo and GM have been partaking in before then, and since.   Today it's the stuff that counts - the undercarriage that rots away first!    GMs Caprice was no slouch either. Reliable as a stone ax - the opposite of what they build now.    
    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      Let me know how your vehicles do in 10 years. You don't know ******, kid. 😂    There's a reason that Panther platform was used as police, fire, and taxi service for DECADES ... long before you were born, apparently.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...