Whining Like Sound

#1 · January 28, 2018, 2:55 pm

So I noticed a whining or some weird sound I'm not used to. At first I thought it was my PS pump so i removed the belt. Then I swapped out alternator with a spare but its still there. I was thinking maybe bad bearing in water pump but thats new and after closer inspection it seems to be coming from the throttle body itself. It gets quieter after its warmed up, that or its drowned out by my electric fans lol

Is that normal for the FiTech or something I should look a little deeper into. My hearing is terrible so I'd have to think its really noisy to soneone who can actually hear.

Thanks

#2 · January 28, 2018, 6:39 pm

Definately not normal, but no ideas yet...

#3 · January 29, 2018, 2:16 pm

Some other guys say a whistle is what I'm hearing. Air slipping past the butterfly or IAC as they called it.

I'll try to get a video of it

#4 · August 12, 2018, 5:41 pm

I am starting to have the same exact systems on my unit (30002). I too thought it was my water pump bearing but I verified that it is not coming from the pump. Do you ever find out for sure what this?

Neil Ballard

#5 · August 12, 2018, 5:42 pm

symptoms on my FiTech unit.

Neil Ballard

#6 · August 12, 2018, 9:35 pm

Cruise, I assumed that Ponchos problem was a whining sound. He may have been referencing a whistling sound during acceleration. All my units do that. It has been explained to me this is normal and is simply a whistle produced from the IAC port. I do plan to ask Fitech about this when at SEMA.

63Nova has reacted to this post.

#7 · September 20, 2018, 10:36 am

Mine does the same.

#8 · November 26, 2018, 12:51 am

Mine also has the same sound. 5.3 in 72 Blazer

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Whining Like Sound