[4.3Lcougar]

i recently did a waterpump on my 91 SC. ever since the change i have some weird whistle. its hard to explain but, is consistant with the rpm's for about 2-3 minutes and then it stops. i took off the upper intercooler pipe and painted it along with a few tensioners. i did seal the top plenum. any thoughts???

 

[cjchevez]

Bearing .

Thats all I can think of . You might want to spray WD40 .

Hope it helps .

 

[rbrown]

Yes spray the pulleys and see if it gets quieter. If not then move on to other items it could be.
Tensioner pulleys like to make noises. I had one on the V8 for the longest that everyone thought I had a blower whine. Ha then they looked closer at the car.

 

[4.3Lcougar]

so you guys think that its the tensioners whistleing... ??

 

[speed95]

Thats what it sounds like to me.

 

[ZeroRain]

ditto

 

[4.3Lcougar]

10-4 will initiate lubeing!!!! stand by for confirmation.

 

[4.3Lcougar]

nope. wd-40 didn't work!!!

 

[Traveler]

LOL It won't help your problem, but it reminds me of a movie quote:

Ann Margaret: Can you check my motor, it whistles.
Elvis Presley: I don't blame it!

 

[David Neibert]

Sounds like a small vacuum leak, start spraying carb cleaner on all the IC tube connections and on the vacuum hose connections and you will know when you find it.

David

 

[mrs.tbirdbrain]

LOL It won't help your problem, but it reminds me of a movie quote:

Quote:
Originally Posted by Viva Las Vegas
Ann Margaret: Can you check my motor, it whistles.
Elvis Presley: I don't blame it!

most of these kids probably don't know who Ann Margaret is, and
have never seen Elvis in a movie - you are dating yourself traveler

 

[speed95]

Yea who is Ann Margaret? Was she from the 20's? J/K man!

 

[Traveler]

Ann Margaret is one of THE most beautiful women of the 1960's.

Elvis Presley was a little known singer of the period who co-starred in the movie with Ann Margaret.

http://www.marshasvintage.com/i/GLAMOUR GIRLS 2/Ann_Margaret_Colororo_revised.jpg

And yea, I may be dating myself, but most folks here know I'm an old fart anyway.

Now, back on topic and the whistle!

 

[tbirdowner302]

LOL It won't help your problem, but it reminds me of a movie quote:

thats funny stuff.

 

[4.3Lcougar]

back on subject guys..... just another note, my idle is very low now, sometimes oil pressure gets very low and car wants to stall....

 

[David Neibert]

back on subject guys..... just another note, my idle is very low now, sometimes oil pressure gets very low and car wants to stall....

Vacuum leak....did you try spraying the connections with carb cleaner ?

David

 

[racecougar]

Yep, definitely sounds like you have a vacuum leak. I'll even go out on a limb and bet that it is at the connection between the top IC tube and the IC.

-Rod

 

[4.3Lcougar]

Yep, definitely sounds like you have a vacuum leak. I'll even go out on a limb and bet that it is at the connection between the top IC tube and the IC.

-Rod

well, i did seal it and i had a spanner wrench to tighten it... mabay ill take it all off and be more cautious this time...

 

[racecougar]

well, i did seal it and i had a spanner wrench to tighten it... mabay ill take it all off and be more cautious this time...

I was referring to the connection between the IC (intercooler) and the upper IC tube, not the connection between the SC (supercharger) and the upper IC tube. It's a common source for vacuum/boost leaks.

-Rod

 

[4.3Lcougar]

I was referring to the connection between the IC (intercooler) and the upper IC tube, not the connection between the SC (supercharger) and the upper IC tube. It's a common source for vacuum/boost leaks.

-Rod

oh, ill check that out.....thanks!:tongue: