LBZ: Roaring Noise during Acceleration

[Buccanoles]

My truck is making a roaring or whooshing sound while accelerating. It's louder when it's under a load (towing). Sounds like I turn the defroster on high while I'm accelerating. When I let off the pedal the noise goes away. No air is coming out of the defroster, checked that. I haven't noticed a performance hit, but it does seem to smoke a little more than usual. Didn't know where to post this so please move it to the correct forum if needed. Thanks for any info...

 

[Kappa9012]

sounds like a boost leak. it's usually a loud rushing air sound, under accel you'll have more boost ie more air loss, and loss of boost means more smoke.

 

[Mike L.]

Check your fan clutch.

 

[xtremebikr04]

Check your fan clutch.

X2 sounds like your fan is stuck on.

 

[Kappa9012]

damn it mike.... I didn't even think about that...

 

[Dozerboy]

Is it all the time or just in the morning/cold? If it's just in the morning it's called "morning sickness" and is normal.


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[Trotorx2]

I had a collapsed elbow on my S&B intake that made a noise like that. The plastic elbow collapsed under the front boot.

 

[Buccanoles]

Thanks for all the replies. As soon as it stops raining buckets here in Tally, I'll get under the hood and check all the tubes and fan clutch out. :thumb: