I have a 2000 Chevy Silverado 1500, 4x4 with the 5.3 engine. While driving, it randomly makes a loud PSSSSSSSST! sound, seems to be more often and longer when I first start up, but does it throughout a drive. It has been doing this for a long time, and

Submitted by redbarchetta Thu 09/09/2010

is there a check engine lite?

Submitted by jerryh20 on Thu, 09/09/2010 - 13:38.

is there a check engine lite? will it do it when in park and revving the engine? need to locate the noise. is the coolant, oil or transmission fluid low?

Do you also hear this noise

Submitted by bfree on Mon, 09/13/2010 - 16:46.

Do you also hear this noise when you apply the brakes?

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