Well, it very well could have been some bad gas that caused it. Water and trash in gasoline are really hard on the pumps, as the gasoline actually provides some lubrication for the pump. Unless you know for sure you did not get bad gas, I think they are correct (from the information you have provided). Especially since you have had the pump replaced two times. To be fair, they should have been able to tell you for sure it was bad gas by testing the fuel in the tank and inspecting the tank for residual trash. Obviously, if the root cause is determined to be bad gas, then no, it is not GM's fault and you (or whoever sold you the gas) would be responsible for the cost of the repairs. Without further information, I can't say if you have a good lemon law case.

 

I could agree but they drained the tank put new gas in and problem still exists. Its going back in today, hopefully for the last time. Thanks for the reply.

 

Have you gotten gas since they replaced the pump? If you keep getting bad gas it will keep happening. Do you use the same gas station? It could be they have trash/water in their holding tank.

 

What kind of hell can ethanol play on the pump?

 

I guess not too much. The gas around here all has 10% in it and I've been running it for the life of my truck and have had no problems with my pump.

 

I think what YOU are hearing and what the dealer hears are totally different. Could it be some OTHER electronic device like an aux air pump or some other pump that comes on when you start it?

 

The dealer told me it was the fuel pump making the noise, when the check engine light came on the error codes were fuel pump related. The check engine light has only come on once and that time it took 4-5 cranks before it would start. They put another fuel pump in I took it home started it next morning same noise. Its back in the dealership for third time now. Its getting very aggravating to be be dealing with this on a truck with 2200 miles. I appreciate the insight and help.

 

So you have fuel pump codes and they have changed the fuel pump. Hmmm. Did they LOOK at the fuel pump they replaced and SEE any strange contaminates?

 

You would think they would have jumped at the chance to tell him if they actually found some contaminents. I mean, had they found that, they could have charged him for the repair and not covered it under warranty (meaning more flat rate time for the tech.). Back when I turned wrenches for a living, I sure would have let him know it was not a warrantable repair and shown him why (if it was in fact caused by contaminated fuel). I guess what I am trying to say is; They told him it was "bad gas", but then made the warranty repair (if it was good willed, you'd think they would have told him that). Something doesnt seem right to me about the information he is getting from the dealership.

 

Maybe I should have been more clear. The owner said the pump has been changed two times. GM used to use a lubricant called "dupinol". It was a water soluable solution that was put on rubber hoses and connections when they installed fuel modules. The problem was that every now and then a GM plant employee would think it is better to use this stuff, full strength. Then a big glob of this stuff would get in the fuel tank and with a little alcohol in the fuel, it would plug the internal strainer. This stuff is clear, no color.
Well it looks like the dealer will have three strikes on this vehicle so it will be bought back. So sorry to hear that. Stuff happens.

 

Ok well truck is back from dealership, they said it was a bad control module that was making the pump make that noise. Sounds "brand new" oh wait it is.......lol hope they got it right this time. Thanks for the insight.

 

Good to hear you got it fixed finally.

 

Too me it doesn't make any sense but if you are happy then I am happy.

 

Too me it doesn't make any sense but if you are happy then I am happy.

I was thinking the same thing.