I didn't hear the fuel pump turn on, but there was alot of background noise.

 

ok guys this what i got
yesterday i took my car to the service center at the dealer and i call today and they told me that the car got a module from the fuel pump dmg and they have to order it
so i will not see my very nice new smell inside cobalt for some time
i hope dont happen to any of you

 

U mean, I hope it dosn't happen to any of us? Grammer > You

 

Fortunately failure of the fuel pump (aka fuel tank module) is not a common occurance on the Cobalt, but of course it CAN happen. You can prevent damage to your fuel pump by always using commercial grade Top Tier fuels, keeping from running very low fuel levels or worse running completely OUT of fuel (which overheats the fuel pump) and NOT adding any unapproved chemicals or additives to your fuel tank or exceeding the recommended concentrations for any fuel treatments or alcohols (gasoline anti-freeze) which can shorten the fuel pump life expectancy.
Hope your car gets back to you soon
Wop

 

3.30" to 3.20" supercharger pulley - .045" gap

3.10" to 3.00" supercharger pulley - .045" gap

3 - 2.90" to 2.80" supercharger pulley - .040" gap

2.70" to 2.60" supercharger pulley - .035" gap

2.50" supercharger pulley - .035" gap

MY BAD WRONG THREAD!!!!! SORRRY

 

i dint knew that any of does thing shorten the fuel pump life
but the weird thing that i dint used any of does and the car never pass from under 1/4 of the tank and i always fill it with Texaco 93 octane fuel
i think i just got a car with bad pump from factory
lol
i hope it doesn't happen again

 

Well I'm not sure if Puerto Rico is participating in the Top Tier fuel program, but I will look into it.
I know that some export fuels have been known to contain certain compounds that can be to the detriment of the fuel pump (and injectors) Often these fuels contain higher levels of sulfer, certain harmful oxygentates (MTBE) , or non-approved octane bolstering additives such as MMTs.
I guess you will know soon enough if every Cobalt in PR stars to fail due to the fuel pump
WOT

 

could clime affect this pump
becouse have been 2-3 weeks with very dense sahara dust and insane hot
i ask couse i dont know much about does things and i want to be clear and find a reason that happen

 

Well if significant sand/silicates are getting into the tank somehow (during refueling??), I guess it could result in early pump failure. Once they get the old pump out it should be much easier to check for tank contamination or clogging of the inlet "sock" filter.
POST PICS OF YOUR OLD PUMP IF YOU CAN
HTH
Wop

 

ok i will try