× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1998 Chevrolet Express 3500 LS 5.7L Whistling Noise
Posted to GM Driveability on 6/2/2005 8 Replies

Hi Folks

This van has a very noticable whistling noise during deceleration. It only occurs while driving and lasts 3-4 seconds. Sounds like an air leak & It appears to be coming from the upper intake/throttle body area but we can't pinpoint the source exactly...

8 Replies Received (View Replies)

  Related Documents & Media  1998 Chevrolet Express 3500 LS

 
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet Express 3500 LS

VIN 1GAHG39R0W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsWhistling Noise
OccursAlways, on Decel
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet Express 3500 LS

VIN 1GAHG39R0W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsWhistling Noise
OccursAlways, on Decel