Why do some cars have two fans?

Why do some vehicles have two fans out for the radiator and why do some only have one?
Why do some vehicles have two fans out for the radiator and why do some only have one?
What does a Camshaft do?
"I hate going through emissions!"
A common question is "How much does it cost to diagnose my vehicle?"
How do I know if my car needs synthetic oil?
There's a misconception that says codes, whether they’re engine codes or antilock brake codes tell us what part to replace.
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