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W J · 08-25-2010, 08:51 AM

I had similar problem on my 5.7 gas 2500, 8600 gvw Express van, only my gauge readings were erratic and sporadically bouncing everywhere, no matter how much fuel in tank....turned out moisture had gotten to PCM due to a plastic shrouding re-call above the PCM. PCM had to be replaced. I had never gotten the recall and had to pay, ouch. WJ

08-25-2010, 08:51 AM	#11
W J Senior Member Join Date: Jul 2009 Location: Paxton, Massachusetts Posts: 638 Likes: 0 Liked 0 Times in 0 Posts	Re: 2003 Duramax fuel gauge problem I had similar problem on my 5.7 gas 2500, 8600 gvw Express van, only my gauge readings were erratic and sporadically bouncing everywhere, no matter how much fuel in tank....turned out moisture had gotten to PCM due to a plastic shrouding re-call above the PCM. PCM had to be replaced. I had never gotten the recall and had to pay, ouch. WJ