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AR15.COM
10/25/2012 3:58:59 PM EDT
Howdy everyone. My buddies 09' Silverado 1500 has a recurring issue when it gets cold out. When the temp drops below 50, his fuel gauge stops working and after a while a CEL comes on because of it. He had the sending unit replaced last year but it still does it.

Any help?
10/25/2012 4:27:26 PM EDT
[#1]
WAG: Loose connection on the sender? When the temperature drops, it contracts slightly and breaks the connection?
10/25/2012 4:29:08 PM EDT
[#2]
Take it to the dealer and complain. My headlights would blink intermittently on my 08 GMC that was out of warranty . My friend that works at a dealer said take it in their (GM) was taking heat on there service and was fixing everything in and out of date.
Long story short they replaced a wiring harness and battery for a 20.00 oil change.
10/25/2012 5:46:09 PM EDT
[#3]
Quoted:
WAG: Loose connection on the sender? When the temperature drops, it contracts slightly and breaks the connection?


This is what I was guessing, a loose connection somewhere.
10/25/2012 5:46:31 PM EDT
[#4]
Quoted:
Take it to the dealer and complain. My headlights would blink intermittently on my 08 GMC that was out of warranty . My friend that works at a dealer said take it in their (GM) was taking heat on there service and was fixing everything in and out of date.
Long story short they replaced a wiring harness and battery for a 20.00 oil change.


I can have him try this but our local dealer is a PITA
10/26/2012 12:34:11 AM EDT
[#5]
Does he have Onstar connected?

If he does, all he has to do is to push the button & ask while he is driving - they will put him on hold & run a check to see what code is being thrown.

If not, has he checked his gas cap? A loose or damaged cap will throw an emissions code (not sure if it will affect the fuel gauge).
11/3/2012 12:02:45 PM EDT
[#6]
Bump for some more ideas.

He does have onstar. I will chat with him tomorrow to find out the exact code it is producing.