just thought i'd throw this out there. I've been searching for a new motor instead of doing a head gasket but my motor only has 160k on it which is nothing so I thought i'd tighten the head bolts (which was desperatley needed) and use a sealer through my rad and cooling system... well my truck hasnt over heated once and my coolant level is still up and my oil is clean as a whistle. for anyone that doesnt know whether to get their hands dirty, for a little work taking your vavle cover off, re tourque head bolts and pour some BARS LEAKS into rad and follow directions... worked for me might work for you. Good luck!!!

 

yeah that stuff does actually work, ive done it on a powerstroke and worked like a charm...the only prob is its only temporary, so save up some money so the next time it happens you can do the t-chain, guides, HG, exc...or rebuild

 

thing is I already replaced the t-chain and guides 20 k ago, I just forgot to re torque my head bolts which is why I got the head leak but since I did the above its been all good, Picked up an extra bottle of BARS to put through after a couples weeks again.