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Coolant

Tiny
KENNYKEN
  • MEMBER
  • 1996 BUICK ROADMASTER
  • V8
  • 2WD
  • MANUAL
  • 152,000 MILES
I have a 96 buick roadmaster estate wagon with the lt1 350. Im having problems with the coolant system. It says it needs special coolant and it needs to be at 15 psi. My question is what type of coolant and how do I get it to psi?
Wednesday, July 20th, 2011 AT 7:46 PM

4 Replies

Tiny
AUSERNAME123456
  • MEMBER
  • 106 POSTS
The coolant it takes is called dexcool. The 15psi is provided by the radiator with the tightly fitting cap. I recommend flushing the system with radiator cleaner then clean water till it runs clear.
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Wednesday, July 20th, 2011 AT 7:57 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
It takes what is called gm dex-cool the 15psi just refers to operating pressure of the cooling system also the pressure the coolant cap will vent at. So what kind of cooling system issues are you having?
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Wednesday, July 20th, 2011 AT 7:57 PM
Tiny
KENNYKEN
  • MEMBER
  • 2 POSTS
It's just running hot and apparently I'mnot using the right coolant and need to flush it. I just baught it on the 11th and the guy told me that it would need a radiator flush, but it's been running hot and boiling over so I got a new thermastat but it's still running hot and has a hard time cooling.
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Wednesday, July 20th, 2011 AT 8:21 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
I would flush it replace your cap is the cooling fan running when its boiling over?Do you have any trouble codes in the computer?What is the last 8 of your vin number?
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Wednesday, July 20th, 2011 AT 8:55 PM

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