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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Air Sucking Noise After Dyno Run

  • Thread starter Thread starter 1987lxhatch
  • Start date Start date Jul 20, 2017

1987lxhatch

Active User
Jul 8, 2017
16
2
13
Montreal canada
Jul 20, 2017
#1
  • Jul 20, 2017
  • #1
Hey guys I just got back from a dyno rum and tune, all went well.

But coming back home after a few miles I heard a kind of interference noise

At first it seemed that it was coming from the speakers(when accelerating the noise increased) when I turned the radio off I did not hear it anymore.

After a few miles even with the radio off it sounded like a loud air sucking noise that gradually gets higher when accelerating.

He set my timing to 10 with the car grounded to check the voltage. Checked air fuel ratio played with timing a bit checked my plugs.

The only other thing that I can think on is that I changed my intake manifold this weekend but all was good. The sound only appeared after the dyno runs.

I will check further on the weekend but I was wondering if anybody has ideas what could be a place to start looking. Thanks
 

mikestang63

SN Certified Technician
Aug 27, 2012
11,606
8,859
214
In the garage
Jul 20, 2017
#2
  • Jul 20, 2017
  • #2
intake tube may not be on correct
 

1987lxhatch

Active User
Jul 8, 2017
16
2
13
Montreal canada
Jul 21, 2017
#3
  • Jul 21, 2017
  • #3
mikestang63 said:
intake tube may not be on correct
Click to expand...
Ok I will check
 

Real time recon

Mustang Master
Aug 21, 2016
469
205
83
...
Jul 21, 2017
#4
  • Jul 21, 2017
  • #4
If you have a BBK throttle body their known to have a sucking/whistle noise
 
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