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Radiator cap

Tiny
TILLA410
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 3.4L
  • 6 CYL
  • AUTOMATIC
I'm trying to locate my radiator cap if I even have one. Its a 3400 sfi engine
Wednesday, August 20th, 2014 AT 2:24 PM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Its on your reservoir tank see pic
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Tuesday, March 2nd, 2021 AT 9:10 AM
Tiny
TILLA410
  • MEMBER
  • 3 POSTS
That's thing I know where my overflow tank is but not my reserve tank. I need to know cause I have gasket fixer and I have to put it in my radiator an overflow
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Tuesday, March 2nd, 2021 AT 9:10 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It isn't actually your overflow tank it's the surge tank, if you put it in there as it 's pressurized it will get into the system as you drive. You are much better off fixing the actual problem than putting that stuff into your cooling system

read the guide guide below, it may help

https://www.2carpros.com/articles/car-is-leaking-coolant

The diagram below shows the surge tank
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Tuesday, March 2nd, 2021 AT 9:10 AM
Tiny
TILLA410
  • MEMBER
  • 3 POSTS
Thanks I'll try that now
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Tuesday, March 2nd, 2021 AT 9:10 AM

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