Why won't Heatran appear in Stark Mountain, even though I talked to Buck's grandfather in the Battleground?

I’ve been through Stark Mountain at least 5 times, yet Heatran still won’t appear. This is in Platinum, by the way.

Pleaselog inorregisterto add a comment.

This is a very strange event, and it should normally go well if you follow all the steps well. When you have followed the following steps then it should really have to work

Stark Mountain (Japanese: ハードマウンテン Hard Mountain) is home to theLegendary Pokémon Heatran. The Pokémon is only availableon the secondtime through the mountain,after revisiting Buck’s Grandfather’s housein the Survival Area. Players are required to have Pokémon withStrength and Rock Smash to proceed through the volcano. Afterencountering their rival, players will find Buck, who will travel withthem through the mountain, up to the point where Heatran isencountered.

Source

How to get to Heatran

Handy tips to catch him

If anything is unclear, watch this video

PS

Normally it should work. It can be that you skipped a step and that might be a reason why it isn’t there (happens to me often enough ¬.¬)Good luck catching Heatran