How to run fans after switch off

[Spendyrx]

What caused it?

 

[Caine_1989]

When it's one no1 fan setting the rpm jumps up and down when I out it in 3or4 it's sits fine just at a slightly higher rpm which is weird think my alternator is on its last legs anyway

 

[Spendyrx]

Haha hopefully you'll get you're head around it! All takes time with these cars!