My 95 4Runner sounds super loud when I am accelerating. Its almost like the engine is being revved really high. It sounds like the roar of the wind, which made me think it was the fan / fan clutch.

I think the fan clutch is locking up more than it should, even though it still spins somewhat freely.

I took the fan off to see how the noise changed. It sounds perfect now. Quieter than my 95 Expedition. Before it was louder than the Expedition.

Do the Gen 2 4Runners have really loud fan noise?

I don't have any overheating issues, before I took the fan off that is. For my quick test, I had no problems sitting at idle either.

So should I try a new fan clutch or do I just have to suffer from a loud fan?

Thanks,
DrA>

 

Welcome to Yota tech

The fan on my 95 4runner is loud on acceleration and the fan on my cousin's 4runner is loud too. I don't mind it loud though. I consider quietness on a vehicle a symptom of overengineering and thus a hinderance to performance. That's just me though.

Unless you like blowing head gaskets I wouldn't leave the fan off, because your cooling system won't work at optimum efficiency without it.

 

Thanks for the info. It just seems really odd that my V6 is twice as loud as my V8 Expedition.

Isn't the roaring supposed to indicate the fan clutch is engaged, which it shouldn't be unless the engine is getting hot enough to need more cooling?

Cheers,
DrA>

 

My '94 is really loud (the roaring you were talking about) before it warms up, but after that, it quiets down. I think the head from the engine is what controls how "engaged" the material inside the fan clutch is, so as the motor warms up (during normal driving conditions) the clutch becomes more solid and spins the fan faster.

Andy

 

ive been having the same problem, i cant even hear my exhaust my fan is so loud!

even when the engines cold the fan is going like hell.

 

When I start my truck its fine. But after its warmed up it engages the fan clutch and stays on all the way its irritating please help.