Hesitating, and runs rough
#1
10-25-1999 | 07:39 AM
Thread Starter
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Junior Member
Joined: Oct 1999
Posts: 1
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From: VA Beach, VA
Hesitating, and runs rough
I have a 1994, F-150 P/U, 4.9L, in-line six. I've changed the plugs, wires, rotor/cap, air filter, crankcase filter, PVC valve, Oxygen Sensor, Throttle Position Sensor, and Fuel Filter. She does not seem to lack power while towing boat, but does hesitate while running. Starts fine, and idles fine. Any suggestions before I take it to the shop? Love this site, and love FORD Trucks. Scott
#2
10-25-1999 | 09:49 AM
Senior Member
Joined: Aug 1999
Posts: 1,628
Likes: 0
From: Clemson SC US of A
Vacuum leak? My best guess. Is this a fuel injected model? Clean em if so.
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97 F-150 SC Lariat, Styleside, White over gold, 4.6L (Windsor) automatic, 3.55 rear end, electronic 4X4, w/ every option of Lariat and ORP packages except the 17" wheels and the 4X4 decals, MOD so far= K&N air box mod, Gibson Super Truck, clear Bugflector II, Leer TSC 600 hard cover, Bridgestone Dueler OWL ATP 265/75 R-16's, TrailMaster VVS shocks, Smittybilt step bars, Ford moulded mud guards, "White-white" head lamps.
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97 F-150 SC Lariat, Styleside, White over gold, 4.6L (Windsor) automatic, 3.55 rear end, electronic 4X4, w/ every option of Lariat and ORP packages except the 17" wheels and the 4X4 decals, MOD so far= K&N air box mod, Gibson Super Truck, clear Bugflector II, Leer TSC 600 hard cover, Bridgestone Dueler OWL ATP 265/75 R-16's, TrailMaster VVS shocks, Smittybilt step bars, Ford moulded mud guards, "White-white" head lamps.
#3
10-25-1999 | 06:49 PM
Senior Member
Joined: Sep 1999
Posts: 1,133
Likes: 0
From: Manhattan KS
Scott: I had the same problem with my 1993 F-150. Turns out that it needed the Fuel injectors cleaned and the throttle body and butterfly valved cleaned.
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Thanks!
1993 F-150 302/e4od/355 Limited slip. dual exhuast w/o mufflers,2 1/4" pipes with Echo Tips, headers, accel plugs/wires(8.6mm)/rotor/cap, hypertech powermodule,5% dark tint. Alpine cd player and Pioneer speakers. I need to get it Dyno Tested and qtr mile times. And someday Ill get picks!!!!!!!!!
1989 F-150 XLT 4x4 302/aod true duals with turbo mufflers, 30X9.50" wild country tires, 3:55 gears w/LS(want after market LS for front) 3" SuperLift would be nice too!
Future SuperDuty owner: But I have it the sheet filled:
F-350 SuperCab Longbed, 4x4, offroad pkg. Powerstroke(Duh!) Auto, 3:73Ls Oxford White with grey bench and VERY dark tinted windows. Maybe someday I can afford 33x12.50 BFG's Mud Terrain! Whatcha Think?
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Thanks!
1993 F-150 302/e4od/355 Limited slip. dual exhuast w/o mufflers,2 1/4" pipes with Echo Tips, headers, accel plugs/wires(8.6mm)/rotor/cap, hypertech powermodule,5% dark tint. Alpine cd player and Pioneer speakers. I need to get it Dyno Tested and qtr mile times. And someday Ill get picks!!!!!!!!!
1989 F-150 XLT 4x4 302/aod true duals with turbo mufflers, 30X9.50" wild country tires, 3:55 gears w/LS(want after market LS for front) 3" SuperLift would be nice too!
Future SuperDuty owner: But I have it the sheet filled:
F-350 SuperCab Longbed, 4x4, offroad pkg. Powerstroke(Duh!) Auto, 3:73Ls Oxford White with grey bench and VERY dark tinted windows. Maybe someday I can afford 33x12.50 BFG's Mud Terrain! Whatcha Think?