Fan clutch noise

Asked by Jun 23, 2018 at 06:11 PM about the 2007 Chevrolet TrailBlazer

Question type: Maintenance & Repair

Rplaced my fan clutch on my 07 trailblazer!  Before
repair it was only loud at start up maybe %75 of the
time!! After putting a new one on its loud all the
time when I accelerate!  Took back to shop and
they said it will be loud for a couple of days
because its b rand new!!  Is that right or should I
take it back!!  The new one was put on 24 hours
ago from me writing this!!

7 Answers

I don't know the brand it was in a red and blue box!! It is electric!!

Driving now and the engine light comes back on and I go to advance auto and they say it's the cooling fan causing the engine light to come on!! SMH!! WILL DEFINITELY BE BACK AT THE SHOP 1ST THING IN THE MORNING!!!

1,635

Daniel, our fan clutches suck. 3 times now I've had bad fan clutches out of the box, 2 different Trailblazers. Listen for ticking too, very common, while the ticking won't harm anything, it's annoying! If it ticks, get another one. This is a cake job to do yourself, either buy the best, Hayden, or get one with a lifetime warranty. On a side note, it is very normal for it to be engaged (loud) at start up, will go away after it warms up a bit. However, it is NOT normal for the fan clutch to be engaged all the time. That mechanic is full of it.

1 people found this helpful.

Yeah the engine light has come on twice since the new one was put on. Taken back both times and he says its fine now. If the light comes back on he'll just get another fan! Its under my warranty!! To me it sounds like a big ass delivery truck when I accelerate!! That's why I took it in in the first place. It wasn't that loud ALL the time!!! Guy at auto zone says it's sucking in A lot of air!!! I can't stand my car being loud!!

1,635

Ha! Been there, sounds like a big rig or an airplane, it's embarrassing really.

1 people found this helpful.

Man !! And I drive lyft to. Had 3 older ladies get quiet when I went to take off from a red light!! Lol

Mine too. Just changed water pump and fan clutch. Bearings were SHOT in both. Bad vibrations between 1000 and 2000 rpm. The r&r fixed vibrations but now sounds like a 747. Throwing a code for fan over speed. I did the work myself. My "big job" mechanic says it's a bad part. Bought it at Autozone same as you. Did you ever get your issue resolved. I know you posted months ago. I hate rework due to bad parts new from the manufacturer.

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