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rough idle/Stalling


Kevinreitan

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Posted

About two weeks ago my engine light came on with a code of P0446. I took the truck into my dealer and they diagnosed a faulty fuel tank pressure sensor, and replaced it. the light has not come back on and the truck was running like normal. This morning when i started it the idle seemed a little off but nothing really bad, about half way to work it started idling really rough at stop lights then stalled once coming off a red light.

 

Any ideas? I am planning on taking it back in if its doing the same after work.

 

2003 Silverado 4.3.

 

 

Posted

Update after taking the truck back in. the rough idle and stalling were unrelated to the fuel tank work i had done in sept. They ended up replacing the cap and rotor under a recall notice.

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