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1999 Jeep Wrangler Coolant disappearing slowly

Tiny
SARDOIN
  • MEMBER
  • 1999 JEEP WRANGLER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 12,300 MILES
1. About 6 months ago got a new radiator, hoses, etc. Full redo.
2. About 4 months ago got overheat indicator. Checked radiator and coolant was low.
3. Brought back to shop to check. Fluid in radiator was dirty/rusty color. They did another cooling system pressure test and there were no leaks.
4. Continue to loose coolant slowly. I add about 1 liter, every 3 weeks.
5. Every once in a while, I get a smell of coolant when I step out of the Jeep. Jeep is running great. Mechanic said that maybe Block is cracked and/or coolant is picking up rust internally somewhere.

I have not brought in yet for full check to investigate this issue more.
I am wondering if Jeep has terminal illness!
Aloha
Shawn
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Friday, December 11th, 2009 AT 11:45 AM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Dont know if id go as far as cracked block. But a minor leak may not show up when pressure testing unless the thermostat is opened and vehicle is hot and the metal has moved.

A small trickle on the radiator may not show up either because you are loosing a relativly small amount of coolant. Id check around all gaskets or perform a die test on the vehicle.
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Friday, December 11th, 2009 AT 6:52 PM

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