Question about 1999 Chevrolet Tahoe
The bolt is rounded and stuck on the back side of the thermostat. I have tried to tap it lightly, used some "break free" fluid, and it still won't budge, and is getting too rounded to use a socket. How can I break it loose?
You might want to get advice from a mechanic to unsure that you don't worsen anything
Posted on Jan 01, 2014
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Posted on Jan 02, 2017
HI" the best to get to it with out a struggle is to remove the cross over pipe make sure engine is nice and cold apply plenty of wd -40 to 4 bolts holding cross over pipe in place ,this will save you lots of frustration ,you can go the other route 13 flex pref 1/4 and plenty of patience when put in it back together ,hope this helps
Posted on Sep 23, 2009
Testimonial: "very helpfull"
Yes,and no.There are tabs bent over from behind the nut.Bend these tabs straight so the nut can turn.If it had a lock,and you removed it,then there will be no tab.You can buy a special wrench,or use a chisel and a hammer to turn the nut.A socket is easier,but it can be done this way.they will be a washer behind the nut,and another nut,then you are home free.I hope this was helpful.
Posted on Oct 06, 2009
very very difficult i feel for ya. id try a undersize socket and extension use hammer to drive on bolt head or if at all possible vise grips. also attempt a 6 point box end wrench if it will fit. last resort vise grips. if all else fails left handed drill bits and screw extractor
Posted on Nov 15, 2009
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