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fongo · 08-31-2004, 02:07 PM

Hey everyone. I've never had a start up/warm-up problem with my 93 5.0 (166K..still kicks!)..until this past week.
After startup, the car hesitates on the street and I usually here a "pop" or two coming from underneath the hood. This only happens during startup. After a few minutes, it goes back to normal w/o a problem. Iwas wondering if it's any of the following:
1. Bad 02 sensors
2. EGR valve sticking or defective
3. Vacuum leak.
4. Bad distr. cap
I cleaned the heck out of the throttle body and I pretty much have new plugs and wires.
Need some help. Thanks!
fongo

08-31-2004, 02:07 PM	#1
fongo Registered Member Join Date: Jan 1999 Location: Farmingdale, NY Posts: 139	"pop" and hesitation at startup Hey everyone. I've never had a start up/warm-up problem with my 93 5.0 (166K..still kicks!)..until this past week. After startup, the car hesitates on the street and I usually here a "pop" or two coming from underneath the hood. This only happens during startup. After a few minutes, it goes back to normal w/o a problem. Iwas wondering if it's any of the following: 1. Bad 02 sensors 2. EGR valve sticking or defective 3. Vacuum leak. 4. Bad distr. cap I cleaned the heck out of the throttle body and I pretty much have new plugs and wires. Need some help. Thanks! fongo __________________ 1993 GT, MAC Fenderwell Cold Air Induction; Accel dist.,Splitfire plugs, BBK: 1 5/8 unequal length shorties, hi flow H-pipe w/ cats; Flowmasters 2 chamber American Thunder catback system, Motorsports 3-core radiator, 180º thermostat, BBK adj. clutch quad...the rest is bone stock!..but more mods to come!!