I have big problems with my 2007 chevy diesel. I only had 3,342 miles on it and the motor would knock under low rpms and disappear after the turbo would kick in. I took it to the dealer where I purchased the truck and they told me that I had bad fuel. They replaced the #5 injector, which did not correct the knocking problem. They told me to drive the "bad fuel" out and replace it with different fuel. I tried driving the fuel out and after about 40 miles the truck started to shake and vibrate so bad that I had to get it towed. The second dealer replaced all 8 injectors. After doing that, they said it was the bad fuel and drained it. After looking at the fuel, I could understand why it was bad...all the sludge in the bottom of the mason jar. I can't understand why the fuel filter didn't take that sludge out. Needless to say...it cost me $5,000 to replace the injectors because of the bad fuel. Has anyone else experienced this problem?

#1, go back to where you got the fuel, they should foot the repair bill. #2 the filter will only remove so much, but....did you see them drain it out of your tank? For that kind of $$ I would not trust any one. #3 go the the user CP and fill out a sig so we can help you better.
Bliz

Maybe where you got the fuel had a virus in the tanks or in the pumps. Did you buy the fuel from a large volume station? There is a fuel treatment that will fix viruses. I think it is Biocide.

Starting to think locking fuel caps are in our best interest.

Maybe where you got the fuel had a virus in the tanks or in the pumps. Did you buy the fuel from a large volume station? There is a fuel treatment that will fix viruses. I think it is Biocide.

I think you mean algae, fungi, or bacteria, not virus. Anyway point taken.:D

Kaz, definitely take the sample back to where you bought the diesel and get them to foot the injector bill(s). Threaten a lawsuit. Or, I'd go against the 1st dealer who said to run out the bad fuel. If they knew it was bad fuel, they should have drained it and put in fresh clean fuel. Good luck, you shouldn't be held liable for payment.

I have a friend who owns a trucking business and they had either a virus or bacteria in their tanks in the yard. Imagine having to change fuel filters and drain the fuel out of 165 otr trucks. Once they pulled the filters and let the filters dry overnight, they would cut them open and it looked like sand in the filters. Maybe this is what Kaz saw? I know I would be a little ticked off.

You can also file a claim with your insurance to have it covered under your comprehensive coverage. They will go after the fueling station if it can be proved you bought your bad tank there (cc receipt-etc). Could also go after the first dealer who told you to "drive it out"....

I filled up on Saturday at Shell and on the way home my truck started knocking at first I thought I was crazy but then my wife said it was louder,
So then on Monday I go by the Shell Station and see there pump are taped off so I go in and ask what wrong with your pumps and they go ahead and tell me the semi filled there diesel holding tank with Super Unleaded :eek:
They ended up paying me 450.00 to drain the tank and so on...

I had a similar problem, and it was on my first post-dealer tank :eek:. The fuel was considerably cheaper than neighboring stations (lesson learned), and turn out it was filled with sludge; must have been ancient. The problem is the engine sucks hard enough that if the fuel filter is blocked, it can blow microholes in the filter media and all that sh*t goes straight into your pump & injectors.

Mine cost close to $18K to replace all injectors, HP pump, injector manifolds, etc. My insurance paid for it 'cause it was the first tank after the original dealer tank and I had my receipt. Now I run an auxiliary fuel filter (Racor) upstream of the factory unit. Has been working great since, but before filing up, I make a point of asking any "new" stations I haven't had experience with when they got their last load of fuel, and if the response is suspicious, I ask to see their books...

2006 4x4 CC LBZ Racor primary filter, FS2500 bypass oil filter