Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

DougW did pass the time by typing:
> Johnny641 did pass the time by typing:
>> I recently bought my Wagoneer. It ran great, but lately has went down
>> hill. About a week ago my Wagoneer would not go over thirty five
>> without cutting out. I would have to let up on the accelerator until it
>> would quit cutting out. It was not a good feeling being in traffic when
>> this started occuring. The problem has only gotten worse. I was driving
>> home from work when the motor completely died. My Wagoneer would start
>> up again but would not remain running for very long. I had a heck of a
>> time getting it home. I could only go about five miles an hour and even
>> then it would cut out and I would have to pull over. The next day I
>> replaced the fuel filter, plugs, plug wires, distributor cap, rotor and
>> air filter. It has done little good. It will start up but will not
>> remain running for very long. Any help and/or suggestions would be
>> greatly appreciated!!!
>
> That's old enough the fuel pump may be giving out. Least wise that's how
> it acted when my old C-10 chevy burned out the pump lobe.
>
> A fuel pressure gauge should be your next test. IIRC 3-5 psi was normal
> for a carb.

I need to read closer before responding. <dunce:)

32 psi on the rail, and it could be the pump or the pressure regulator.

--
DougW

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

DougW did pass the time by typing:
> Johnny641 did pass the time by typing:
>> I recently bought my Wagoneer. It ran great, but lately has went down
>> hill. About a week ago my Wagoneer would not go over thirty five
>> without cutting out. I would have to let up on the accelerator until it
>> would quit cutting out. It was not a good feeling being in traffic when
>> this started occuring. The problem has only gotten worse. I was driving
>> home from work when the motor completely died. My Wagoneer would start
>> up again but would not remain running for very long. I had a heck of a
>> time getting it home. I could only go about five miles an hour and even
>> then it would cut out and I would have to pull over. The next day I
>> replaced the fuel filter, plugs, plug wires, distributor cap, rotor and
>> air filter. It has done little good. It will start up but will not
>> remain running for very long. Any help and/or suggestions would be
>> greatly appreciated!!!
>
> That's old enough the fuel pump may be giving out. Least wise that's how
> it acted when my old C-10 chevy burned out the pump lobe.
>
> A fuel pressure gauge should be your next test. IIRC 3-5 psi was normal
> for a carb.

I need to read closer before responding. <dunce:)

32 psi on the rail, and it could be the pump or the pressure regulator.

--
DougW

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

DougW did pass the time by typing:
> Johnny641 did pass the time by typing:
>> I recently bought my Wagoneer. It ran great, but lately has went down
>> hill. About a week ago my Wagoneer would not go over thirty five
>> without cutting out. I would have to let up on the accelerator until it
>> would quit cutting out. It was not a good feeling being in traffic when
>> this started occuring. The problem has only gotten worse. I was driving
>> home from work when the motor completely died. My Wagoneer would start
>> up again but would not remain running for very long. I had a heck of a
>> time getting it home. I could only go about five miles an hour and even
>> then it would cut out and I would have to pull over. The next day I
>> replaced the fuel filter, plugs, plug wires, distributor cap, rotor and
>> air filter. It has done little good. It will start up but will not
>> remain running for very long. Any help and/or suggestions would be
>> greatly appreciated!!!
>
> That's old enough the fuel pump may be giving out. Least wise that's how
> it acted when my old C-10 chevy burned out the pump lobe.
>
> A fuel pressure gauge should be your next test. IIRC 3-5 psi was normal
> for a carb.

I need to read closer before responding. <dunce:)

32 psi on the rail, and it could be the pump or the pressure regulator.

--
DougW

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

On Sat, 26 Nov 2005 07:05:33 UTC "Johnny641" <russ.moeller@mchsi.com>
wrote:

> I recently bought my Wagoneer. It ran great, but lately has went down
> hill. About a week ago my Wagoneer would not go over thirty five
> without cutting out. I would have to let up on the accelerator until it
> would quit cutting out. It was not a good feeling being in traffic when
> this started occuring. The problem has only gotten worse. I was driving
> home from work when the motor completely died. My Wagoneer would start
> up again but would not remain running for very long. I had a heck of a
> time getting it home. I could only go about five miles an hour and even
> then it would cut out and I would have to pull over. The next day I
> replaced the fuel filter, plugs, plug wires, distributor cap, rotor and
> air filter. It has done little good. It will start up but will not
> remain running for very long. Any help and/or suggestions would be
> greatly appreciated!!!

Sounds like a fuel pump going south or a plugged fuel filter. A guage
on the fuel rail should show about 40 PSI with the key on and the
engine not running. After startup, it should drop to 30-31 PSI and
maintain that pressure as the engine speed increases. There's a
procedure for doing the full checkout in the service manual, but what
you describe is a classic fuel pump failure.

--
Will Honea

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

On Sat, 26 Nov 2005 07:05:33 UTC "Johnny641" <russ.moeller@mchsi.com>
wrote:

> I recently bought my Wagoneer. It ran great, but lately has went down
> hill. About a week ago my Wagoneer would not go over thirty five
> without cutting out. I would have to let up on the accelerator until it
> would quit cutting out. It was not a good feeling being in traffic when
> this started occuring. The problem has only gotten worse. I was driving
> home from work when the motor completely died. My Wagoneer would start
> up again but would not remain running for very long. I had a heck of a
> time getting it home. I could only go about five miles an hour and even
> then it would cut out and I would have to pull over. The next day I
> replaced the fuel filter, plugs, plug wires, distributor cap, rotor and
> air filter. It has done little good. It will start up but will not
> remain running for very long. Any help and/or suggestions would be
> greatly appreciated!!!

Sounds like a fuel pump going south or a plugged fuel filter. A guage
on the fuel rail should show about 40 PSI with the key on and the
engine not running. After startup, it should drop to 30-31 PSI and
maintain that pressure as the engine speed increases. There's a
procedure for doing the full checkout in the service manual, but what
you describe is a classic fuel pump failure.

--
Will Honea

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

On Sat, 26 Nov 2005 07:05:33 UTC "Johnny641" <russ.moeller@mchsi.com>
wrote:

> I recently bought my Wagoneer. It ran great, but lately has went down
> hill. About a week ago my Wagoneer would not go over thirty five
> without cutting out. I would have to let up on the accelerator until it
> would quit cutting out. It was not a good feeling being in traffic when
> this started occuring. The problem has only gotten worse. I was driving
> home from work when the motor completely died. My Wagoneer would start
> up again but would not remain running for very long. I had a heck of a
> time getting it home. I could only go about five miles an hour and even
> then it would cut out and I would have to pull over. The next day I
> replaced the fuel filter, plugs, plug wires, distributor cap, rotor and
> air filter. It has done little good. It will start up but will not
> remain running for very long. Any help and/or suggestions would be
> greatly appreciated!!!

Sounds like a fuel pump going south or a plugged fuel filter. A guage
on the fuel rail should show about 40 PSI with the key on and the
engine not running. After startup, it should drop to 30-31 PSI and
maintain that pressure as the engine speed increases. There's a
procedure for doing the full checkout in the service manual, but what
you describe is a classic fuel pump failure.

--
Will Honea

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

> I recently bought my Wagoneer. It ran great, but lately has went down
> hill. About a week ago my Wagoneer would not go over thirty five
> without cutting out.

Fuel pump. My old '84 with a 3.4L replacement would do this went the
electric pump started dying. I had three of them crap out after only a year
on each. Current one's lasted 4 years. But that's probably also due to
putting a much better filter ahead of it between the pump and the tank.
It's entirely possible there's also a lot of crud in your tank that's
clogging the filter. Unlikely, but possible. My tank actually rusted out
to the point of a tiny pinhole developing. When I dropped the tank to
replace it I noticed QUITE a lot of sediment and the bottom of it. Not
saying you should drop the tank but if the pump is inside the tank (dunno
where it is on an '87) and you're already in there it can't hurt to look.

-Bill Kearney

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

> I recently bought my Wagoneer. It ran great, but lately has went down
> hill. About a week ago my Wagoneer would not go over thirty five
> without cutting out.

Fuel pump. My old '84 with a 3.4L replacement would do this went the
electric pump started dying. I had three of them crap out after only a year
on each. Current one's lasted 4 years. But that's probably also due to
putting a much better filter ahead of it between the pump and the tank.
It's entirely possible there's also a lot of crud in your tank that's
clogging the filter. Unlikely, but possible. My tank actually rusted out
to the point of a tiny pinhole developing. When I dropped the tank to
replace it I noticed QUITE a lot of sediment and the bottom of it. Not
saying you should drop the tank but if the pump is inside the tank (dunno
where it is on an '87) and you're already in there it can't hurt to look.

-Bill Kearney

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

> I recently bought my Wagoneer. It ran great, but lately has went down
> hill. About a week ago my Wagoneer would not go over thirty five
> without cutting out.

Fuel pump. My old '84 with a 3.4L replacement would do this went the
electric pump started dying. I had three of them crap out after only a year
on each. Current one's lasted 4 years. But that's probably also due to
putting a much better filter ahead of it between the pump and the tank.
It's entirely possible there's also a lot of crud in your tank that's
clogging the filter. Unlikely, but possible. My tank actually rusted out
to the point of a tiny pinhole developing. When I dropped the tank to
replace it I noticed QUITE a lot of sediment and the bottom of it. Not
saying you should drop the tank but if the pump is inside the tank (dunno
where it is on an '87) and you're already in there it can't hurt to look.

-Bill Kearney

Re: 1987 Wagoneer Limited 4x4 Fuel Injected Inline Six Cylinder
 

wkearney99 wrote:
>
> > I recently bought my Wagoneer. It ran great, but lately has went down
> > hill. About a week ago my Wagoneer would not go over thirty five
> > without cutting out.
>
> Fuel pump. My old '84 with a 3.4L replacement would do this went the
> electric pump started dying. I had three of them crap out after only a year
> on each. Current one's lasted 4 years. But that's probably also due to
> putting a much better filter ahead of it between the pump and the tank.
> It's entirely possible there's also a lot of crud in your tank that's
> clogging the filter. Unlikely, but possible. My tank actually rusted out
> to the point of a tiny pinhole developing. When I dropped the tank to
> replace it I noticed QUITE a lot of sediment and the bottom of it. Not
> saying you should drop the tank but if the pump is inside the tank (dunno
> where it is on an '87) and you're already in there it can't hurt to look.
>
> -Bill Kearney

If it is the pump, it is easily accessed from the front of the tank on
our 88 Cherokee. No need to drop the tank. When I see those die, they
usually up and die. They don't give much warning from what I have seen.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
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