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94 ford f150 pops/sputters


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Guest
Anonymous Poster
vincemail201-shop@yahoo.com

Feb 8, 2008, 12:57 AM

Post #1 of 10 (3135 views)
94 ford f150 pops/sputters Sign In

my 94 ford f150 5.0 will occasionally pop or sputter (misfire)and loses power for no reason? And then it will suddenly"catch" and accelerate. I have tried to recall the circumstance at each occurance, and I think it happens more when fuel tank is 1/4 or less. (could be coincidence)I filled it tonigt and took a drive, no problems. veh. has 80,000 + miles.


way2old
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Feb 8, 2008, 5:41 AM

Post #2 of 10 (3128 views)
Re: 94 ford f150 pops/sputters Sign In

From your description and from the description only, I would venture a guess that maybe the fuel sending unit is faulty and giving a bad reading to the gauge. So, without having it to check, I would just be sure it has over 1/4 tank. When it starts sputtering and you fill it up, how many gallons does it take?



Being way2old is why I need help from younger minds


dave284
Enthusiast / Moderator
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Feb 8, 2008, 8:36 AM

Post #3 of 10 (3125 views)
Re: 94 ford f150 pops/sputters Sign In

W20 , good thinking, and water in the fuel another possibiltyUnsure


Guest
Anonymous Poster
vincemail201-shop@yahoo.com

Feb 9, 2008, 1:25 AM

Post #4 of 10 (3118 views)
Re: 94 ford f150 pops/sputters Sign In

This truck has 2 tanks, when I fill the tank or tanks they seem to take the amount of fuel they should. I should have mentioned that the last occurence was a heavy rain day, I dont recall if the other times were. I switched to the rear tank which was 3/4 full and the problem continued. I am guessing at wires or water in the tank(s) I did add a bottle of "Heet" as well as a bottle of concentrated injector cleaner to both tanks. I will be changing plugs,wires,cap and fuel filter on saturday.


Guest
Anonymous Poster
vincemail201-shop@yahoo.com

Feb 9, 2008, 9:28 PM

Post #5 of 10 (3111 views)
Re: 94 ford f150 pops/sputters Sign In

Well, went through whole tuneup procedure, changed plugs, cap, wires, plugs, fuel filter, timing etc. the problem persists. Not really sure how to check the fuel for water? Thinking of syphoning some out of tank into clear bottle and see if it seperates? Does water float on top of gasoline?Mad


Tom Greenleaf
Ultimate Carjunky / Moderator
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Feb 10, 2008, 1:56 AM

Post #6 of 10 (3107 views)
Re: 94 ford f150 pops/sputters Sign In

Does water float on top of gasoline?Mad .......................

_______________________________________
No - the other way, water on the bottom. Tanks, filters, even carbs used to come with drains on the bottom,

T



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Feb 10, 2008, 2:01 AM

Post #7 of 10 (3106 views)
Re: 94 ford f150 pops/sputters Sign In

That's fuel and water. The upper (lighter) colored liquid is fuel (oil floats on water). The water is in the bottom, and it's rusty brown.

This may help,

T



Guest
Anonymous Poster
vincemail201-shop@yahoo.com

Feb 10, 2008, 8:21 AM

Post #8 of 10 (3104 views)
Re: 94 ford f150 pops/sputters Sign In

This is the second engine in this vehicle,(long before I purchased it) I wired it from specs on a 1994 5.0 litre, is there a way to find out what year my engine actually is? where would I find a serial number or code on the engine? Has the firing sequence changed model year to model year?


dave284
Enthusiast / Moderator
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Feb 10, 2008, 9:35 AM

Post #9 of 10 (3103 views)
Re: 94 ford f150 pops/sputters Sign In

The vehicle has a OBI system computer it might have stored some trouble codes,but it will need to be read with a OBI scanner tool.Unsure


way2old
Veteran / Moderator
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Feb 10, 2008, 11:10 AM

Post #10 of 10 (3105 views)
Re: 94 ford f150 pops/sputters Sign In

Go to this site for a way to read codes without a scanner. Also check the TPS to be sure it is not having a fault.



Being way2old is why I need help from younger minds






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