oct 2000/2001 ford ranger edge 4x2 3.0 v6 num 1 cylinder head gasket blew out due to dowel pin. replaced as necessary, check for cylinder head warpage all good replaced head gaskets (felpro) 4 days later steaming out of exhaust. Also new head bolts. Torque sepcs by book 76fp. then discovered coolant in #4 and #6. problem was #1 why now #4 and #6 possibility wrong torque specs, or bad torque wrench.. wtf!!!

 

please help could it be the torque tool or something else

 

Did you replace both head gaskets when it was apart to fix #1?

If not then other head gasket could have been marginal because of the overheating caused by #1, and it blew.

If both were changed then yes, could be torque wrench issue, but probably wouldn't have happened that fast.
I used an old torque wrench, mine and working well for 25 years, until it didn't, lol, but had to redo gasket at approx. 9 month intervals, TWICE, then I checked it, was 20lbs light at 60ft/lb, so I was not tight enough.


Could have been a problem in the install, 40+ years and I still goof up

Not sure where the 76ft/lb comes from, you are using TTY(torque to yield) head bolts, so there is no ft/lb as final torque spec.
And you do need new head bolts again, once they are tighten to spec one time they stretch, when loosened they do not come back, so..........they will fail, could be when tightening them again, could be in a month of heating up and cooling, could be a year, so your money and your time, take the chance if you want.