Quote:
Originally Posted by maclean216
What causes the heads to crack?
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Usually it's overheating. I've never overheated my truck so it makes me wonder if it did before I got it at 90K. I'm surprised it didn't become a problem until now (10 years/105K later), but my guess is that maybe the OP overheated it, it weakened them but they didn't crack until recently? Not sure though. I was thinking maybe it's also just because being a mountain truck it's just had a harder life than most middle-class, teenage, white 4runners.
Quote:
Originally Posted by JohnsD90
Blunt force trauma.
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That too.
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2021 Tacoma 4x4 TRD Off Road Double Cab Short Bed (my DD)
2017 4Runner 4x4 Limited (the wife’s)
