1998 Chevy Tahoe losing coolant

  • V8
  • 4WD
  • 210,000 MILES
I have a 1998 Chevrolet Tahoe with 210,000 miles on it. I went out to get gas the other day, the gas station is about 3 minutes from my home, when I came out of the station I noticed my temprature gauge was reading about 240-50 when it normally runs about 200-210, I pulled ahead and parked it and shut it down, I checked the coolant level and it appeared to be completely gone, I let it cool off and topped it off, I was able to make it another whole day before this same problem accured, I replaced the thermostat and that wasn't the problem, I then checked the coolant level again and it seemed just a little low this time, I also checked the oil and it was way overfull and milky when all the previous times it was level and clean. I see no obvious leaks under the truck or in the engine compartment so I wonder what the problem may be? Where could it be going and what could be causing it to run out when there are no leaks? Someone said intake gaskets, if it is and I replace them, and change the oil will the engine most likely be ok?
Tuesday, January 22nd, 2008 AT 7:08 PM

1 Reply

  • 3 POSTS
Your issue is 1 of 2 things. 1) most likely it is the intake gaskets. But I have seen head gaskets do the same thing. Regadless if it is the head gaskets or intake. As long as you DO NOT run th vehicle for very long without the proper oil viscosity for an extended period od time. You should be fine. Drain oil immediately change filter as well. Fix the intake or head gaskets or both. And run engine for about 100 miles and change oil again.
Hope this helps
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Sunday, January 27th, 2008 AT 9:02 PM

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