starting probs
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Senior User
Joined: Oct 2008
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From: Denmark,WI
starting probs
im having problems with my 01 f150 5.4(114,000 mi) on startup. ill turn the key to start it and it cranks good but takes a few extra sec to start then normal. but sometimes it starts fine. if i try to start it and it doesnt fire right away and let off then try to start again it starts right up?? any suggestions??
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Senior User
Joined: Oct 2008
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From: Denmark,WI
i plan to do the plugs really soon but im gonna wait a bit because i just got it 2 weeks ago. air filter is clean i did that right after i got it home the day i picked it up. i put a shot of lucas in the gas last night. anything else you can think of that would be an issue? like i said theres times where it starts great and theres times where it does this
New User
Joined: Apr 2010
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Get your injectors cleaned... gas additives are very ineffective. Lots of car/truck owners overlook that.
It could be your fuel system sensors need to be re-set or corrected... but I doubt it.
You ARE using 87 octane fuel, correct?
I am sure it is something minor. Look at the silly, cheap, obvious things first.
It could be your fuel system sensors need to be re-set or corrected... but I doubt it.
You ARE using 87 octane fuel, correct?
I am sure it is something minor. Look at the silly, cheap, obvious things first.
Elder User
Joined: Jan 2008
Posts: 589
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From: Stockton Ca.
That is the part that peaked my interest, priming the fuel system more than once. Dirty fuel filter? weak fuel pump?
Senior User
Joined: Mar 2008
Posts: 162
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From: Hanford Ca.
could need a presser regulater my truck did that it had high miles replaced injecters and run great now
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Senior User
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From: Denmark,WI
presser regulator???
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Thread Starter
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Senior User
Joined: Oct 2008
Posts: 276
Likes: 0
From: Denmark,WI
Get your injectors cleaned... gas additives are very ineffective. Lots of car/truck owners overlook that.
It could be your fuel system sensors need to be re-set or corrected... but I doubt it.
You ARE using 87 octane fuel, correct?
I am sure it is something minor. Look at the silly, cheap, obvious things first.
It could be your fuel system sensors need to be re-set or corrected... but I doubt it.
You ARE using 87 octane fuel, correct?
I am sure it is something minor. Look at the silly, cheap, obvious things first.
Fleet Mechanic
Joined: Feb 2007
Posts: 1,716
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From: Boston, MA
I agree with the fuel pressure suggestions. change the fuel filter. check fuel pressure. I think it has an iacv i would pull that and clean it...check for codes also even if the lite is off......
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Senior User
Joined: Oct 2008
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From: Denmark,WI
iacv? never heard of it. there isnt a check engine light
Fleet Mechanic
Joined: Feb 2007
Posts: 1,716
Likes: 0
From: Boston, MA
iacv=idle air control valve.......it is attache to the TB. I dont think it is the issue but it is a good maintenance to remove and clean out the chanber. ( if you are in to woodworking at all it looks like a 4" long Biscuit joiner).
Fleet Mechanic
Joined: Feb 2007
Posts: 1,716
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From: Boston, MA
it could be the injectors but I am going to guess that is not the issue. If it was my truck i would do a tunup, including plugs, pcv, airfilter, clean maf, clean iacv, change fuel filte, add some injector cleaner. . if the issue is still there I would suspect the fuel delivery system. I would do a presure test, check for codes...... if you csn buy a cheap code reader for $20 bucks because sometimes the codes are pending and then go away before the light comes on. but if you check especially when it is acting up you might catch a code........
Thread Starter
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Senior User
Joined: Oct 2008
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From: Denmark,WI
i actually just got the truck 2 weeks ago and im waiting on the bank to finish up a few things..thats why i havent done a complete tuneup yet but trust me i plan to...previous owner said he hadn't done spark plugs in it so im thinking this could be one of the issues. but he did change the fuel pump..ive been using lucas in the fuel too