GMC JIMMY LOSING COOLANT THROUGH OVERFLOW TANK

  • Tiny
  • jims440
  • GMC Jimmy

My V6 Jimmy, 1999, is losing coolant through the overflow tanks overflow tube. After a short drive, the coolant backs up and overflows. I have a new 16 lb radiator cap. I've noticed the coolant is very dark, almost black. It loses approx. 1/2 gallon each time. No other leaks. The oil is clean and clear. What could be causing this?
Thanks,

Jim

Do you
have the same problem?
Yes
No
Tuesday, May 8th, 2007 AT 9:40 PM

0 Replies

Please login or register to post a reply.

Similar Questions