Professional cleaning needed? [Archive] - GrandAmGT.com Forum

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99gav6
10-04-2007, 09:58 PM
Ok so my mods are in my sig, i just had the mpracing tune installed and its been about 500 miles since that was done. Anyway i seafoamed (not the first time) my car the other day through the pcv valve and put a little in the gas tank. When i first took it out for a spin immediately after that the car ran better then ever, it was able to break the tires loose all through 1st gear and chirp them going to second, well that didn't last long. It seems now when i give it a lot of throttle that the car just doesn't have the power as it did then and it certainly doesn't have the initial jerk, its like its stuck in 3rd gear when i'm doing 20mph (but it isn't). My fuel pump has been humming for about a year and i haven't changed it but will next weekend along with the filter. Does this sound like a pump that is giving up? Or maybe a dirty filter or injectors? I want that "damn this thing actually is quick" feeling back. Thanks for the help. btw the car has just turned 105k.

nate2023
10-04-2007, 10:30 PM
maybe when you put the seafoam in the gas tank the seafoam loosened debris from the bottom or so, try changing the fuel filter, wouldnt hurt. check you plugs too, putting too much seafoam could crap up the plugs

99gav6
10-05-2007, 11:53 AM
anyone else have a problem like mine?

Metallman56
10-05-2007, 12:12 PM
what octane gas do you use?

99gav6
10-05-2007, 03:50 PM
91, its what my car is tuned for

99gav6
10-05-2007, 05:06 PM
anyway i will be changing the fuel pump, filter, and plugs next weekend so if it is still doin bad after that is there anything else i should look for?

99gav6
10-07-2007, 09:33 PM
I fixed the problem, i went today and filled up on shell gas, problem solved, and i thought qt had decent gas, what bastards.....