help asap please need info for rear hub assembly

[AdmiralMubutu]

It does sound like fuel flow/starvation. Swap out the inline filter and see if it goes away. The part number is Wix brand: 33980

Thanks, will do.

[silver]

Had the car at Pocono yesterday and had no issues with the hubs. I applied blue Loctite on Friday and used reference marks on axles and nuts. No movement. Rechecked torque after each session and all was fine.

Ran into a new issue though. Toward the end of the day, I found the car losing power in the long straights. Seemed to hesitate at high RPM and had difficulty building top end speed. Problem worsened on drive home. Anything but the most gentle application of throttle would cause the engine to bog down and almost stall. As soon as I come off throttle, it idles normally. Anyone have any thoughts? Fuel flow issue maybe? Has anyone heard of a Brammo Atom 2 having similar symptoms? (GM Ecotec supercharged)

have you already gone through the check process for the gasket on the fuel tank?

[McFred]

If it's not clogged fuel pump socks/fitler from that deteriorating gasket, then it's probably the lemon Cobalt fuel pump from 2006. Mine behaved in much the same manner. I took it for a spin up a mountain, full throttle started sputtering, then 75%, then 50%, etc. Always idled fine though. I replaced the fuel pump with a non-GM one and it has not been a problem since.

2006 Chevrolet Cobalt Recalls & Problems - Motor Trend Magazine
Recall ID # 66617 - FUEL SYSTEM, GASOLINEELIVERY:FUEL PUMP
Recall Date: OCT 29, 2009
Model Affected: 2006 Chevrolet Cobalt

[Terry Kennedy]

If it's not clogged fuel pump socks/fitler from that deteriorating gasket, then it's probably the lemon Cobalt fuel pump from 2006.

2006 Chevrolet Cobalt Recalls & Problems - Motor Trend Magazine
Recall ID # 66617 - FUEL SYSTEM, GASOLINEELIVERY:FUEL PUMP
Recall Date: OCT 29, 2009
Model Affected: 2006 Chevrolet Cobalt

Brammo Atoms were built with the 2005 pump. You can tell the difference because on the 2005, the whole assembly (pump and sender) is one part. For 2006, GM changed thing so they were two separate part numbers.

[AdmiralMubutu]

Thanks guys, I have my mechanic looking at the car on Saturday. I'll make sure he takes a look at this thread.

[McFred]

I stand corrected.

Either way. I replaced the pump and it was no longer an issue. Socks were not clogged, neither was the fuel filter.

[AdmiralMubutu]

Terry, I'd love to meet one day. You are definitely the encyclopedia of all-things-Atom.