2003 GMC Sierra h2o sensor

2003 GMC SIERRA
116,000 MILES • V8 • 2WD • AUTOMATIC
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RICKOMATIC12
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  • 2 POSTS
I had the heate senor replace by a mechanic, after it was installed he atarted the engine and it made a bad knocking sound and slowly went away, 4 months later i drove it to florida and the sound come back, it is like a knocking or rattling sound at a idle, when you stare to go over 30 miles per hour or faster it goes away. What could this be. Please help?
Aug 2, 2010 at 2:33 PM
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RICKOMATIC12
  • MEMBER
  • 2 POSTS
[quote:c3b3ba9b85="rickomatic12"]Noises problem
2003 GMC Sierra V8 Two Wheel Drive Automatic 116000 miles

I had the heate senor replace by a mechanic, after it was installed he atarted the engine and it made a bad knocking sound and slowly went away, 4 months later i drove it to florida and the sound come back, it is like a knocking or rattling sound at a idle, when you stare to go over 30 miles per hour or faster it goes away. What could this be. Please help?[/quote:c3b3ba9b85]
Aug 2, 2010 at 2:36 PM
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