Hard starting once warm
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Elder User
Joined: Mar 2004
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Hard starting once warm
I have a 97 351 w with no maf in my truck. It starts great when cold, like in the moring every day, but once it is warmed up and parked for more then 5 minutes, it is hard to start. It will turn for around 2 to 3 seconds then finally studder and fire up when I touch the gas pedal. If I do not touch the gas, it will just keep turning with no starting. If I turn it off, it will start no prob if I start it again under 5 minutes. Once it is running, it runs great.
Does anybody have any idea what might be causing this? Will it throw a code for this? Thanks in advance.
Jim
Does anybody have any idea what might be causing this? Will it throw a code for this? Thanks in advance.
Jim
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
pull codes, www.fordfuelinjection.com will show you how. when was it tuned up last? fuel filter replaced, check fuel pressure at the rail as well.
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Elder User
Joined: Mar 2004
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I don't know the last time it uas tuned up as it was just swaped into my truck. I had a quick chat with one of the local mechs and he said that it is running rich, which would make sense as I can smell fuel when it does fire up. I was thinking of throwing some new plugs and wires on it as well. I will try to get the codes as soon as I can. That is a great website.
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
if you pull the vacum line off of the fuel pressure regulator and gas comes out that is probably your problem. that and a tune up being needed.
if the motor was just swapped into your truck why wasnt new plugs,wires,cap & rotor installed. thats a major step being skipped there if you ask me
if the motor was just swapped into your truck why wasnt new plugs,wires,cap & rotor installed. thats a major step being skipped there if you ask me
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Elder User
Joined: Mar 2004
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Where is the fuel pressure regulator on this engine? Does it matter when I pull it, just after I turn it off or at any time? Thanks for the help.
As for the new cap, wires, ect, the engine was pulled from a F350 and put in my truck as is. It is a rebuilt engine that has 40,000 kms on it and the truck was turned in due to the tranny going and the mine company that owner the truck wanted a diesel. So basicly it got ripped out of that truck and placed into mine, with the F350 being the donor rig for the wiring ect.
As for the new cap, wires, ect, the engine was pulled from a F350 and put in my truck as is. It is a rebuilt engine that has 40,000 kms on it and the truck was turned in due to the tranny going and the mine company that owner the truck wanted a diesel. So basicly it got ripped out of that truck and placed into mine, with the F350 being the donor rig for the wiring ect.
