1996 F250 5.8L Starting Problems

speltier · 10-10-2005, 04:35 PM

I have a 1996 F250 5.8L Truck. Lately, I've begun to have a problem when starting the truck after driving it for a while, it would start to sputter and not catch until after holding the gas pedal down, or letting it work itself out usually after 20 seconds or so. It would also emit a gas smell from the vent behind the cab. It is worse on hotter days but does it all the time. I've replaced the IAC and Fuel pressure Regulator today to no avail. What am I missing???

roper racing 03 · 12-27-2005, 05:25 PM

after turning the key and trying to start it, does the engine sputter, jump around alot and then does the starter disengage but keep spinning???

84LX89GT · 02-10-2006, 11:14 PM

Another thing that can cause your truck to run rich is a bad mass air flow sensor (changes Baro reading to PCM), i would get a fuel pressure gauge and test pressure - maybe a fuel line is kinked and the pump is deadheaded. Is your air filter/intake tract clogged?

10-10-2005, 04:35 PM	#1
speltier Registered Member Join Date: Oct 2005 Posts: 1	1996 F250 5.8L Starting Problems I have a 1996 F250 5.8L Truck. Lately, I've begun to have a problem when starting the truck after driving it for a while, it would start to sputter and not catch until after holding the gas pedal down, or letting it work itself out usually after 20 seconds or so. It would also emit a gas smell from the vent behind the cab. It is worse on hotter days but does it all the time. I've replaced the IAC and Fuel pressure Regulator today to no avail. What am I missing???

12-27-2005, 05:25 PM	#2
roper racing 03 the south will rise again Join Date: Dec 2005 Location: batesville Indiana Posts: 13	Re: 1996 F250 5.8L Starting Problems after turning the key and trying to start it, does the engine sputter, jump around alot and then does the starter disengage but keep spinning???

02-10-2006, 11:14 PM	#3
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	Re: 1996 F250 5.8L Starting Problems Another thing that can cause your truck to run rich is a bad mass air flow sensor (changes Baro reading to PCM), i would get a fuel pressure gauge and test pressure - maybe a fuel line is kinked and the pump is deadheaded. Is your air filter/intake tract clogged? __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

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