Engine problem?

gregkelley · April 12th, 2007, 07:09 PM

The car cuts off when I stop hard . The car has a holly 650 on it dont know if it has something to do with that. What could cause this?

Tony_90fox · April 12th, 2007, 07:16 PM

Mine done that before for awhile. I think it was because the idle was set too low. I dont know why but when i would stop hard it would drop below 500 rpm sputter and come back up to idle or die....My suggestion is set the idle a bit higher, maybe to 750 or 800 and see what happens.

If that doesnt work or you already did do that, somebody else will chime in because my problem was fixed after that.

ujslost · April 12th, 2007, 08:40 PM

is the timing to low?

gregkelley · April 14th, 2007, 12:45 PM

The timing has been set I will try adjusting the idle.

angermgt · April 14th, 2007, 05:09 PM

car could be runnin rich.

gregkelley · April 14th, 2007, 08:22 PM

I tried increasing the idle it made it some better but it still stalls and cuts off on a hard stop? Would a weak fuel pump cause that? I think it is stock and mabey even a from a 4 cyl mustang. The glass in the fuel filter has a big air bubble in it and I have noticed a decrease in power.

April 12th, 2007, 07:09 PM	#1
gregkelley Regular Join Date: Feb 2007 Posts: 52	Engine problem? The car cuts off when I stop hard . The car has a holly 650 on it dont know if it has something to do with that. What could cause this?

April 12th, 2007, 07:16 PM	#2
Tony_90fox MM Fanatic Join Date: Jun 2006 Location: Bowling Green, KY Posts: 3,445	Mine done that before for awhile. I think it was because the idle was set too low. I dont know why but when i would stop hard it would drop below 500 rpm sputter and come back up to idle or die....My suggestion is set the idle a bit higher, maybe to 750 or 800 and see what happens. If that doesnt work or you already did do that, somebody else will chime in because my problem was fixed after that. __________________ Suck on it Trebek. Suck it long, suck it hard.

April 12th, 2007, 08:40 PM	#3
ujslost MM Fanatic Join Date: Mar 2007 Location: Albertville, AL Posts: 3,846	is the timing to low? __________________ http://www.moddedmustangs.com/forums/vehicle-classifieds/86839-wtt-90-lx-hatch-red-black-north-alabama.html#post1394801

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April 14th, 2007, 12:45 PM	#4
gregkelley Regular Join Date: Feb 2007 Posts: 52	The timing has been set I will try adjusting the idle.

April 14th, 2007, 05:09 PM	#5
angermgt Regular Join Date: Nov 2006 Location: new jersey Posts: 131	car could be runnin rich.

April 14th, 2007, 08:22 PM	#6
gregkelley Regular Join Date: Feb 2007 Posts: 52	I tried increasing the idle it made it some better but it still stalls and cuts off on a hard stop? Would a weak fuel pump cause that? I think it is stock and mabey even a from a 4 cyl mustang. The glass in the fuel filter has a big air bubble in it and I have noticed a decrease in power.

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