1993 F150 sputtering problems / engine light @45k
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Junior Member
Joined: Dec 2006
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1993 F150 sputtering problems / engine light @45k
Ill try to put as much detail as I can , from what I know about this truck.
We had a f150 at work that was purchased with a new warehouse , the truck had sat for probably around 6-7 years . I needed a daily since my street / strip was being worked on . Anyway I replaced some hoses flushed the radiator , put a new fuel pump in the truck ( tank #2 is still full of varnish im sure ) .. New exhaust and other little things .. it ran ok besides a few problems , like it would randomly rev high and hold for a few seconds ( guessing the TB was just sticky or something I dunno , since this truck has no RPM gauge its hard to tell but was probably spiking around 2900-3100 ) That problem eventually went away . Alough there are small problems I still have ( revs up and down while cold and brake system will lock at a single touch of the brake pedal .. Gas gauge was reading "kind of ok" but now just sits at E .. Water temp sensor only shows 1/4 , guessing its covered in brown goodness )
Anyway here are my current problems , Alough the plugs and wires are oem which I need to change . The engine check light came on around 45k .. The truck was still running fine , this light comes on after about 15 seconds the car is turned on . ( has been going on for about 3 days )
Yesterday after about a 30 mile drive the problems started , The engine check light would go off followed by a "rev" of the engine then kick back on in about 10 seconds .. The truck slowly began to sputter .. and When I mean sputter I am talking about a bucking bronco jerking back and forth wondering if something in the drive train is about to snap , with hollow "pings" but no back fire coming from the engine when id try to make it keep going . I started it again and it was fine but the engine check light is there .
Alough I would say plug wires I would assume they would constantly break up and not buck me around as much . The battery was off the tray and the negative was slightly loose .. Alough I know how many problems ground can cause even after putting it back in place I feel as if it has todo with the check engine light.
Another small question is if you are looking at the engine in the top left corner where i am guessing the "a/c" blower is , there is what appears to be a small diaphram with a swing arm that pushes in and out of it . The "plastic tube" going to it has become brittle and broken . AC / heat works fine as long as i turn it on once the car is warmed up.
Thanks guys and sorry for making this "EHH HELP" my first post . Id take it to get the code checked but from what I remember 93 f150's use OBD 1 when discount , pep boys or any common place really only does code checks for OBD 2 ecu's now.
truck is a manual . and it is a engine problem not drive train .
We had a f150 at work that was purchased with a new warehouse , the truck had sat for probably around 6-7 years . I needed a daily since my street / strip was being worked on . Anyway I replaced some hoses flushed the radiator , put a new fuel pump in the truck ( tank #2 is still full of varnish im sure ) .. New exhaust and other little things .. it ran ok besides a few problems , like it would randomly rev high and hold for a few seconds ( guessing the TB was just sticky or something I dunno , since this truck has no RPM gauge its hard to tell but was probably spiking around 2900-3100 ) That problem eventually went away . Alough there are small problems I still have ( revs up and down while cold and brake system will lock at a single touch of the brake pedal .. Gas gauge was reading "kind of ok" but now just sits at E .. Water temp sensor only shows 1/4 , guessing its covered in brown goodness )
Anyway here are my current problems , Alough the plugs and wires are oem which I need to change . The engine check light came on around 45k .. The truck was still running fine , this light comes on after about 15 seconds the car is turned on . ( has been going on for about 3 days )
Yesterday after about a 30 mile drive the problems started , The engine check light would go off followed by a "rev" of the engine then kick back on in about 10 seconds .. The truck slowly began to sputter .. and When I mean sputter I am talking about a bucking bronco jerking back and forth wondering if something in the drive train is about to snap , with hollow "pings" but no back fire coming from the engine when id try to make it keep going . I started it again and it was fine but the engine check light is there .
Alough I would say plug wires I would assume they would constantly break up and not buck me around as much . The battery was off the tray and the negative was slightly loose .. Alough I know how many problems ground can cause even after putting it back in place I feel as if it has todo with the check engine light.
Another small question is if you are looking at the engine in the top left corner where i am guessing the "a/c" blower is , there is what appears to be a small diaphram with a swing arm that pushes in and out of it . The "plastic tube" going to it has become brittle and broken . AC / heat works fine as long as i turn it on once the car is warmed up.
Thanks guys and sorry for making this "EHH HELP" my first post . Id take it to get the code checked but from what I remember 93 f150's use OBD 1 when discount , pep boys or any common place really only does code checks for OBD 2 ecu's now.
truck is a manual . and it is a engine problem not drive train .
Senior Member
Joined: Dec 2004
Posts: 5,008
Likes: 27
From: Dover AFB DE / Harrisburg PA
Very straight forward to check the OBD1 codes yourself with a short piece of wire. Full details on how to run a self test are at...
www.fordfuelinjection.com
...So check that out and report back with the code numbers you count out.
Welcome to the forum too! We're all happy to help.
Adrianspeeder
www.fordfuelinjection.com
...So check that out and report back with the code numbers you count out.
Welcome to the forum too! We're all happy to help.
Adrianspeeder