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Originally Posted by luvmy99tahoe
I had that exact same problem with mine. i looked at the coolant and could not see the top. I have my oil changed every 2500 mi at the dealership and they havent been checking the coolant like they said. My last radiator flush wash supposedly 48,000mi ago but when another shop flushed it they said it was all thick. They did a reverse power flush and the temp gauge problem went away. Its dexcool at its best. I found a hirline crack in my radiator later on however and am looking for a cheap way to fix it temporaraly until I can get a new radiator. Any suggestions?
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You might try JB welding the crack in the radiator. Drain it, dry the crack, apply the JB weld and go from there. I don't think radiator stop leak will work if the crack is on the plastic tank.
THanks for your input on my problem. I went and looked and sure enough low coolant in the radiator. The resevoir was up, but the radiator was low. Probably passing an air bubble around causing the inaccurate readings. Also time for a flush on the Tahoe anyways, so it looks like I know where I'll be after work.
Thanks again for your responses.
Chris