chadz34 Posted October 31, 2008 Report Share Posted October 31, 2008 Today I decided to get a little throttle heavy and at 6K RPM the engine backfired and stuttered to a stall. I thought the motor was blown, but started up fine....ran a little boggy at all rpm's. I tohught the car has always held back a little, I am startign to think its the fuel pump is that an accurate guess? At high rpms sometimes it would feel like it was bogging out at WOT not stuttering was not misfiring it just ran out of power. Does not do it all the time.....just wonderign if these are symptoms of a fuel pump....I dont have alot of money to fuck around with the car, almost everytihng is new.....here's a list of new parts. New head and intake gaskets New vacuum lines new transmission new wires, plugs, coils fresh timing belt Any help is aweosme thanks. Quote Link to comment Share on other sites More sharing options...
z34mightymachine Posted October 31, 2008 Report Share Posted October 31, 2008 My Lumina Z34 was loosing power also. I got the fuel pressure checked and it was my fuel pump. You should try with getting the fuel pressure checked. At the same time I would also change the fuel filter as it may be clogged. Quote Link to comment Share on other sites More sharing options...
Addicted To Boost Posted October 31, 2008 Report Share Posted October 31, 2008 Sounds fuel system related, possible bad fuel pump. What kind of fuel pressure do you have at the rail? Quote Link to comment Share on other sites More sharing options...
chadz34 Posted October 31, 2008 Author Report Share Posted October 31, 2008 Sounds fuel system related, possible bad fuel pump. What kind of fuel pressure do you have at the rail? Don't know have not checked it yet, but this is problem that is slowly getting worse I think the pump is taking a giant shit. Quote Link to comment Share on other sites More sharing options...
z34mightymachine Posted October 31, 2008 Report Share Posted October 31, 2008 I knew my fuel pump was going because It took a while to get it started. Lucky for me the car was in the garage and it did not die on me on the road. Quote Link to comment Share on other sites More sharing options...
White93z34 Posted October 31, 2008 Report Share Posted October 31, 2008 sounds like a fuel pump to me Quote Link to comment Share on other sites More sharing options...
chadz34 Posted November 1, 2008 Author Report Share Posted November 1, 2008 sounds like a fuel pump to me Thanks it's what I tohught any recomendations for a new one should I go stock? Or Walbro? Quote Link to comment Share on other sites More sharing options...
White93z34 Posted November 1, 2008 Report Share Posted November 1, 2008 I've been running Bosch replacements in my cars for awhile now. So far I'm pleased. Quote Link to comment Share on other sites More sharing options...
5speedz34 Posted November 3, 2008 Report Share Posted November 3, 2008 Honestly, why not take it back to the shop it was worked on? You might be able to get it diagnosed/fixed for free! Quote Link to comment Share on other sites More sharing options...
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