1986 F150 5.0 runs Lean

Dennis,

> I have a 1986 F150 long bed 4X4 with a EFI 5.0 ltr V8 I bought off
> craigslist. It has been sitting for over ten years. I've replaced all
> the outside components like plugs, wires, cap, and rotor. The EGR
> looks and tests new. I ultrasonically cleaned the injectors, and put
> it all back together. It seems to run OK with a little hesitation. I
> have a code reader and it comes up with a 41 and a 31. One points to
> the EGR low voltage and the other indicates the vehicle is running
> lean.
> Does anyone no what I can check or change to fix this problem. Next
> thing I'm looking at is taking apart the throttle body and cleaning
> it.
>

I can't offer any help, but I am curious about the truck's ten year nap.
Were there any special measures taken to store it?

Bill
 >> Stay informed about: 1986 F150 5.0 runs Lean 

In article
<38e933b0-c378-4665-a535-daa5fd3ecbc1.TakeThisOut@s36g2000prg.googlegroups.co
m>,
Safety man <dennisbreedlove.TakeThisOut@malloryfire.com> wrote:

> I have a 1986 F150 long bed 4X4 with a EFI 5.0 ltr V8 I bought off
> craigslist. It has been sitting for over ten years. I've replaced all
> the outside components like plugs, wires, cap, and rotor. The EGR
> looks and tests new. I ultrasonically cleaned the injectors, and put
> it all back together. It seems to run OK with a little hesitation. I
> have a code reader and it comes up with a 41 and a 31. One points to
> the EGR low voltage and the other indicates the vehicle is running
> lean.
> Does anyone no what I can check or change to fix this problem. Next
> thing I'm looking at is taking apart the throttle body and cleaning
> it.
>
> Thanks
> Dennis B
> Sac, CA

I'd really scrutinize the vacuum reservoir (looks like a tomato
juice can) probably got some rust holes in it.
 >> Stay informed about: 1986 F150 5.0 runs Lean 

On Fri, 23 Nov 2007 09:37:20 -0800, Safety man rearranged some electrons
to say:

> I have a 1986 F150 long bed 4X4 with a EFI 5.0 ltr V8 I bought off
> craigslist. It has been sitting for over ten years. I've replaced all
> the outside components like plugs, wires, cap, and rotor. The EGR looks
> and tests new. I ultrasonically cleaned the injectors, and put it all
> back together. It seems to run OK with a little hesitation. I have a
> code reader and it comes up with a 41 and a 31. One points to the EGR
> low voltage and the other indicates the vehicle is running lean.
> Does anyone no what I can check or change to fix this problem. Next
> thing I'm looking at is taking apart the throttle body and cleaning it.
>
> Thanks
> Dennis B
> Sac, CA

Rotten,leaky vacuum hoses would cause a lean condition.
 >> Stay informed about: 1986 F150 5.0 runs Lean 

Dennis,

>> I can't offer any help, but I am curious about the truck's ten year nap.
>> Were there any special measures taken to store it?
>>
> All I know is that it was purshased at a Lien sale in 02 and the old
> man that bought it had dune some work on it up until he died. I bought
> the truck from a guy that hauled it away for the widow. It's in pretty
> good shape for as long as it has been off the road. Paint is a little
> faded, and I keep fighting the spiders that live on it, but we'll get
> there.

Were fluids drained or periodically changed? Was it inside or out,
covered? Tire maintenance?

Re spiders, at least inside the cab, you could put out some diatomaceous
earth, either directly on the floor or in shallow containers. I would
not want to cover mechanical components with it; use at your own risk.
The idea is to get them to walk through it. It's said to tear the
dickens out of their joints, which is fatal to them. It's a little
cruel, but it beats getting bitten. I would also put some roach traps
in it. Spiders will tend to leave if the buffet gets sparse. Having
dealt with an infestation, I fully believe there comes a point when the
spiders simply feed on each other, but even that can be reduced with
time, and a truck is probably not big enough to support it anyway. I
took a house from the point of being unable to enter a room without
seeing at least two spiders walking around in the open (they were
everywhere) to normal levels (they were around, but you had to look for
them). Along the way, the numbers dropped, and I started seeing bigger
spiders with time; I could be wrong, but I think the decreasing food
supply brought the bigger guys out in desperation, and then they died
off. Good luck.

Bill
 >> Stay informed about: 1986 F150 5.0 runs Lean 

"Bill Schwab" <bschwab.DeleteThis@anest.ufl.edu> wrote in message
news:13kgob2jo3sjja7@corp.supernews.com...
> Dennis,
>
>>> I can't offer any help, but I am curious about the truck's ten year nap.
>>> Were there any special measures taken to store it?
>>>
>> All I know is that it was purshased at a Lien sale in 02 and the old
>> man that bought it had dune some work on it up until he died. I bought
>> the truck from a guy that hauled it away for the widow. It's in pretty
>> good shape for as long as it has been off the road. Paint is a little
>> faded, and I keep fighting the spiders that live on it, but we'll get
>> there.
>
> Were fluids drained or periodically changed? Was it inside or out,
> covered? Tire maintenance?
>
> Re spiders, at least inside the cab, you could put out some diatomaceous
> earth, either directly on the floor or in shallow containers. I would not
> want to cover mechanical components with it; use at your own risk. The
> idea is to get them to walk through it. It's said to tear the dickens out
> of their joints, which is fatal to them. It's a little cruel, but it
> beats getting bitten. I would also put some roach traps in it. Spiders
> will tend to leave if the buffet gets sparse. Having dealt with an
> infestation, I fully believe there comes a point when the spiders simply
> feed on each other, but even that can be reduced with time, and a truck is
> probably not big enough to support it anyway. I took a house from the
> point of being unable to enter a room without seeing at least two spiders
> walking around in the open (they were everywhere) to normal levels (they
> were around, but you had to look for them). Along the way, the numbers
> dropped, and I started seeing bigger spiders with time; I could be wrong,
> but I think the decreasing food supply brought the bigger guys out in
> desperation, and then they died off. Good luck.
>
> Bill

Here in Tucson you just park in the Sun with the windows rolled up.
Everything dies:) Guess the same would happen in cold country.

Al
 >> Stay informed about: 1986 F150 5.0 runs Lean