MustangWorks.com : Ford Forums - View Single Post - Hesitation and slight popping during acceleration? Why?

GhettoPop · 06-01-2005, 08:41 AM

i have the same problem. when the car is cold and I put the engine under load, it will hesitate and the exhaust will pop. a second or two later the engine will respond normally. it happens in 1st, 2nd, and 3rd gear. it starts up fine, every once in a while it will want to stall out right after i start it. if i give it a little gas or start it again after it stalls once, it will idle fine. idle is good when cold and warm. once i drive for 5 min and car warms a little, no more problems. injectors, TPS, TB, etc are all stock with 130,000+ miles. the timing is at 14 and i run 87 octine gas as i get no pinging and i have been running good at that timing before this problem started. i dont think i have any vacuum leaks but will check with a gauge at the tree. i will also check the tps voltage and i already have a new pcv valve and screen to pop in. will post my results...........

how can i checl fuell pressure? is there any gain to buying an adjustable fuel regulator and adjusting fuel pressure on a stock engine?

06-01-2005, 08:41 AM	#10
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	Re: Hesitation and slight popping during acceleration? Why? i have the same problem. when the car is cold and I put the engine under load, it will hesitate and the exhaust will pop. a second or two later the engine will respond normally. it happens in 1st, 2nd, and 3rd gear. it starts up fine, every once in a while it will want to stall out right after i start it. if i give it a little gas or start it again after it stalls once, it will idle fine. idle is good when cold and warm. once i drive for 5 min and car warms a little, no more problems. injectors, TPS, TB, etc are all stock with 130,000+ miles. the timing is at 14 and i run 87 octine gas as i get no pinging and i have been running good at that timing before this problem started. i dont think i have any vacuum leaks but will check with a gauge at the tree. i will also check the tps voltage and i already have a new pcv valve and screen to pop in. will post my results........... how can i checl fuell pressure? is there any gain to buying an adjustable fuel regulator and adjusting fuel pressure on a stock engine? __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!