Question about 2003 Ford Mustang
When i take off hard from 1st gear like spinning tires hard, when i hit about 3500 rpms it has a hickup like the whole engine shuts down for a split second. I'm not losing fuel pressure ive cleaned maf sensor it also set a fuel rail pressure sensor code and both lean exhaust codes. fuel pressure is not steady it jumps around 5 psi even at idle. I know the pump is pwm so i dont know if that is normal or not any ideas. mustang cobra 4.6 y motor super charged
I too have this hiccup. I've got a 4.6L 2003 Mustang GT. From a full stop, under reasonably hard acceleration, I experience this acceleration pause consistently. Not sure why -- have dealt with it since new -- same now with 113K miles on car.
Posted on Nov 25, 2009
If this happens right after you shift it is likely the check valve in the fuel line at the pump. If not occuring after the shift you may be experiencing spark blow out. Try reducing your plug gap to .035 and see if that helps. This is especially important if you have made any modifications that will increase your boost over stock levels.
Posted on Jul 07, 2009
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 22, 2016 | Cars & Trucks
Dec 31, 2015 | Cars & Trucks
Mar 21, 2015 | 2004 Dodge Caravan
Dec 24, 2014 | BMW Cars & Trucks
Dec 17, 2009 | 2006 Dodge Ram 3500 Truck
Dec 16, 2009 | 2001 Ford Taurus
Aug 09, 2009 | 1999 Dodge Durango
Apr 17, 2009 | 2000 Pontiac Grand Am GT
Jan 06, 2009 | 2000 Buick LeSabre
156 people viewed this question
Usually answered in minutes!