Have to replace radiator. What else should I replace while I'm at it?
Thread Starter
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BF Guru
Joined: Dec 2016
Posts: 5,600
From: Moscow, ID
Have to replace radiator. What else should I replace while I'm at it?
So I discovered a leak in my radiator. It is on the engine side in the lower left (drivers side) corner where the plastic meets the metal. Since I have to pull it, what else should I replace while I have it out? Of those things I should replace what brands should I get?
All of the coolant hoses are only a few years old so what is left on my list is the following:
All of the coolant hoses are only a few years old so what is left on my list is the following:
- Radiator
- Water pump
- Oil-filter to radiator hoses (they are leaking a tad)
- ???
Super Member
Joined: Apr 2014
Posts: 1,968
From: Lake City, Florida
Radiator should come with a new cap (I would hope). Thermostat, upper and lower hoses, and water pump where the first things that come to my mind. Much easier to do while all that stuff is out of the way and the coolant system is already open.
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BF Guru
Joined: Dec 2016
Posts: 5,600
From: Moscow, ID
For the thermostat, it should be 195' F, right?
I'm also going to replace the fan clutch while I'm at it.
Thermostats are not that expensive but I'll check.
I'm do a test drive and see how much it is leaking. If I can wait until the weekend after next I'll be able to order from RockAuto and have a 3-day weekend to do the work.
I'm also going to replace the fan clutch while I'm at it.
Thermostats are not that expensive but I'll check.
I'm do a test drive and see how much it is leaking. If I can wait until the weekend after next I'll be able to order from RockAuto and have a 3-day weekend to do the work.
Wait, don't forget NEW coolant lol!!!!! Come on, I have nothing else to offer here 
Starting Member
Joined: Apr 2018
Posts: 132
From: Colorado
If you're considering keeping your blazer for many years, you may want a reasonably priced all aluminum radiator.
Radiator 2001 Chevrolet Blazer - 4.3 Liter V6 262Cid Radiator All Aluminum 1 Row, With 2 Coolers | Radiator Express
$185....not a bad deal for piece of mind.
Radiator 2001 Chevrolet Blazer - 4.3 Liter V6 262Cid Radiator All Aluminum 1 Row, With 2 Coolers | Radiator Express
$185....not a bad deal for piece of mind.
Thread Starter
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BF Guru
Joined: Dec 2016
Posts: 5,600
From: Moscow, ID
If you're considering keeping your blazer for many years, you may want a reasonably priced all aluminum radiator.
Radiator 2001 Chevrolet Blazer - 4.3 Liter V6 262Cid Radiator All Aluminum 1 Row, With 2 Coolers | Radiator Express
$185....not a bad deal for piece of mind.
Radiator 2001 Chevrolet Blazer - 4.3 Liter V6 262Cid Radiator All Aluminum 1 Row, With 2 Coolers | Radiator Express
$185....not a bad deal for piece of mind.
Is this what you installed in yours?
Starting Member
Joined: Apr 2018
Posts: 132
From: Colorado
I have not bought one YET! I put in a new radiator a year ago when I purchased my Blazer, but when I put in a new GM crate motor this spring I will be buying that aluminum radiator for sure.
Senior Member
Joined: Oct 2013
Posts: 548
From: Iowa
Here’s the replacement I used. I haven’t had any issues with it’s operation, but it does NOT have a drain peacock. It does NOT come with a new cap either.
Here’s the stant cap:
The all aluminum radiator would be nifty though! (I was going to say cooler
). If you go that route you may as well plan on a future electric fan upgrade too!
I would also suggest ordering a couple new rubber mounts for the bottom of the new radiator:
Here’s the stant cap:
The all aluminum radiator would be nifty though! (I was going to say cooler
). If you go that route you may as well plan on a future electric fan upgrade too!I would also suggest ordering a couple new rubber mounts for the bottom of the new radiator: