Re: Odd Stuttering for 22-RE

Sounds like a plug wire...
"Tom Sweazy" <sweazy@optonline.net> wrote in message
news:UnUKd.913$bL7.498@fe10.lga...[color=blue]
> Hi Guylaine, Wolfgang,
>
> I tried the 1/4 tank injector cleaner technique and the stuttering has
> gone away! I filled the tank and still no stuttering after about 50
> miles from the original treatment. This will certainly save me $$$$ if
> it holds. I had forgotten to mention I had tried a can of BG44K in a
> full tank a few weeks ago but that had made no difference. Perhaps it
> would have if I tried the 1/4 tank method. I used 'Valvoline SynPower
> Fuel Injector Cleaner" this time around. I still plan to clean the
> throttle body.
> Thanks again both of you for taking the time to respond to my question.
> Tony
>
>
> Guylaine J. Parisien wrote:
>[color=green]
> > Use injector cleaner.
> > Run the fuel tank down to 1/8-to-1/4 full and pour the whole bottle of
> > injector cleaner into the gas tank, then drive it as far as you dare[/color][/color]
before[color=blue][color=green]
> > you run out of gas, [don't ever run out of gas with fuel injectors] then
> > fill the tank, run it to 1/8 and do it again, then add cleaner to each[/color][/color]
tank[color=blue][color=green]
> > full after that according to directions on the bottle. You can't put an
> > overdose in the tank and leave it as it will melt the seals in the fuel
> > system if left concentrated for too long.
> > This is what my toyota dealer does to first time problems, then if this
> > doesn't fix it, it's remove and replace. Fuel injectors on stationary[/color][/color]
diesel[color=blue][color=green]
> > engines etc are re-buildable but I don't know about the Toyota units. I
> > doubt it as the service manual only refers to replacement. The manual[/color][/color]
shows[color=blue][color=green]
> > the test procedure for volume flow and leakage. ( less than one drop of[/color][/color]
fuel[color=blue][color=green]
> > per minute) Remove the injector from the engine, jury rig a hose to the
> > input [use fuel from the pressure regulator] jumper the fuel pump so it[/color][/color]
runs[color=blue][color=green]
> > without the engine running. . Both the cold start and cylinder injectors
> > should be the same leakage. They also specify flow, put power to the
> > injector and see a nice conical spay pattern as well as measure the[/color][/color]
output..[color=blue][color=green]
> > 40-50 cc / 15 seconds, variation less than 6cc across all injectors.[/color][/color]
don't[color=blue][color=green]
> > leave the injector powered longer than needed.
> >
> >
> > "Tom Sweazy" <sweazy@optonline.net> wrote in message
> > news:L7BJd.563$nZ.22@fe10.lga...
> >[color=darkred]
> >>Wolfgang wrote:
> >>
> >>>To test ya need special equipment -- You can pull them all and ship to[/color]
> >
> > RC
> >[color=darkred]
> >>>Engineering or DOA racing (if I recall) to have then cleaned and[/color]
> >
> > calibrated.
> >[color=darkred]
> >>>
> >>>"Tom Sweazy" <sweazy@optonline.net> wrote in message
> >>>news:MwTId.1518$Yv3.523@fe11.lga...
> >>>
> >>>
> >>>>Guylaine J. Parisien wrote:
> >>>>
> >>>>
> >>>>
> >>>>>you probably have a leaky fuel injector.. have them tested.
> >>>>>
> >>>>>
> >>>>>"Tom Sweazy" <sweazy@optonline.net> wrote in message
> >>>>>news:x9kId.2624$K42.1102@fe10.lga...
> >>>>>
> >>>>>
> >>>>>
> >>>>>>1988 SR-5 Pickup, 22-RE 4 Cyl. 2.4 liter Engine, 5-Speed Manual,[/color][/color][/color]
fuel[color=blue][color=green][color=darkred]
> >>>>>>injection. No AC.
> >>>>>>
> >>>>>>Problem: Engine stutters for a couple of seconds when I step on the
> >>>>>>gas, but ONLY when accelerating AFTER I was traveling along and[/color]
> >
> > allowed
> >[color=darkred]
> >>>>>>the engine to brake the truck. This is the case when I eventually[/color]
> >
> > come
> >[color=darkred]
> >>>>>>to a stop and also if I never fully stop. After the stuttering, it[/color]
> >
> > runs
> >[color=darkred]
> >>>>>>great even when under heavy load like traveling up a steep hill.
> >>>>>>
> >>>>>>Here's the odd part: If I take it out of gear just BEFORE letting[/color][/color][/color]
the[color=blue][color=green][color=darkred]
> >>>>>>engine slow the truck, and allow the RPM's to drop to idle, then put[/color]
> >
> > it
> >[color=darkred]
> >>>>>>in gear and accelerate...no stuttering!
> >>>>>>
> >>>>>>It's as if something were loading with fuel when I let off on the[/color][/color][/color]
gas[color=blue][color=green][color=darkred]
> >>>>>>pedal and allow the engine to brake, resulting in a too rich mix[/color][/color][/color]
when[color=blue][color=green]
> >
> > I
> >[color=darkred]
> >>>>>>accelerate again.
> >>>>>>
> >>>>>>I put in a new timing chain last year and the engine ran fine for
> >>>>>>several months.
> >>>>>>
> >>>>>>Items replaced with no effect on stuttering:
> >>>>>>Spark plugs, ignition wires, distributor cap, rotor, PCV valve, air
> >>>>>>filter, fuel filter. I checked fairly rigorously for vacuum leaks.
> >>>>>>
> >>>>>>Any Ideas?
> >>>>>>Thanks
> >>>>>>Tony
> >>>>>
> >>>>>
> >>>>>
> >>>>Hi Guylaine,
> >>>>Thanks for the tip. Wolfgang suggested cleaning the throttle body,[/color]
> >
> > which
> >[color=darkred]
> >>>>I will pursue. When you say that an injector may be leaking, does[/color][/color][/color]
that[color=blue][color=green][color=darkred]
> >>>>imply it allows fuel to pass through when it should be shut off during
> >>>>deceleration? If so, that would seem consistent with the symptoms. Do[/color]
> >
> > you
> >[color=darkred]
> >>>>know what's involved in checking for a leaky injector? Does it require
> >>>>special equipment?
> >>>>Tony
> >>>
> >>>
> >>>
> >>Hi Wolfgang,
> >>Thanks for the info on the injectors. As soon as the weather breaks and
> >>I can schedule some downtime I'll most likely go for it. By the way,
> >>when the engine is warm and I'm idling, sometimes there's a very low
> >>level pop/skip/stutter and most people don't even notice it. The tach
> >>barely shows a drop in RPM. Could this be related to the injector
> >>problem addressed earlier? Some folks have said it's normal for a 4
> >>cylinder engine. I don't recall it doing that before but maybe I never
> >>listened close enough.
> >>Tony[/color]
> >
> >
> >[/color][/color]

My 92 22refi is doing exactly this too
I used the BG44k $$ too, same thing, it sorta helped but not much.
Then I tried the 1/8 tank w/ full can of AutoZone ?brand injector
cleaner, ran 1/8 hard in it and refilled, its working better now.
ALSO, NOTE:
I cleaned the little filter on the EGR vacuum module, it comes out
easy and mine was very dirty. It helped. Also, mine runs correctly
when its cold, still choked I guess, then starts acting like this as
soon as it warms. It still does what yours does a little, but its not
as bad now. If you find somethig else that improves it (my Gas milage
was only around 22mpg) let me know on the group. I am running the next
tank of premium and I i will have to see if the milage improves. What
should I expect with this 22re?? I heard you can get 30mpg if its
running right.



On Fri, 04 Mar 2005 00:47:04 GMT, "scott and barb"
<crowley9@gate.net.> wrote:
[color=blue]
>Sounds like a plug wire...
>"Tom Sweazy" <sweazy@optonline.net> wrote in message
>news:UnUKd.913$bL7.498@fe10.lga...[color=green]
>> Hi Guylaine, Wolfgang,
>>
>> I tried the 1/4 tank injector cleaner technique and the stuttering has
>> gone away! I filled the tank and still no stuttering after about 50
>> miles from the original treatment. This will certainly save me $$$$ if
>> it holds. I had forgotten to mention I had tried a can of BG44K in a
>> full tank a few weeks ago but that had made no difference. Perhaps it
>> would have if I tried the 1/4 tank method. I used 'Valvoline SynPower
>> Fuel Injector Cleaner" this time around. I still plan to clean the
>> throttle body.
>> Thanks again both of you for taking the time to respond to my question.
>> Tony
>>
>>
>> Guylaine J. Parisien wrote:
>>[color=darkred]
>> > Use injector cleaner.
>> > Run the fuel tank down to 1/8-to-1/4 full and pour the whole bottle of
>> > injector cleaner into the gas tank, then drive it as far as you dare[/color][/color]
>before[color=green][color=darkred]
>> > you run out of gas, [don't ever run out of gas with fuel injectors] then
>> > fill the tank, run it to 1/8 and do it again, then add cleaner to each[/color][/color]
>tank[color=green][color=darkred]
>> > full after that according to directions on the bottle. You can't put an
>> > overdose in the tank and leave it as it will melt the seals in the fuel
>> > system if left concentrated for too long.
>> > This is what my toyota dealer does to first time problems, then if this
>> > doesn't fix it, it's remove and replace. Fuel injectors on stationary[/color][/color]
>diesel[color=green][color=darkred]
>> > engines etc are re-buildable but I don't know about the Toyota units. I
>> > doubt it as the service manual only refers to replacement. The manual[/color][/color]
>shows[color=green][color=darkred]
>> > the test procedure for volume flow and leakage. ( less than one drop of[/color][/color]
>fuel[color=green][color=darkred]
>> > per minute) Remove the injector from the engine, jury rig a hose to the
>> > input [use fuel from the pressure regulator] jumper the fuel pump so it[/color][/color]
>runs[color=green][color=darkred]
>> > without the engine running. . Both the cold start and cylinder injectors
>> > should be the same leakage. They also specify flow, put power to the
>> > injector and see a nice conical spay pattern as well as measure the[/color][/color]
>output..[color=green][color=darkred]
>> > 40-50 cc / 15 seconds, variation less than 6cc across all injectors.[/color][/color]
>don't[color=green][color=darkred]
>> > leave the injector powered longer than needed.
>> >
>> >
>> > "Tom Sweazy" <sweazy@optonline.net> wrote in message
>> > news:L7BJd.563$nZ.22@fe10.lga...
>> >
>> >>Wolfgang wrote:
>> >>
>> >>>To test ya need special equipment -- You can pull them all and ship to
>> >
>> > RC
>> >
>> >>>Engineering or DOA racing (if I recall) to have then cleaned and
>> >
>> > calibrated.
>> >
>> >>>
>> >>>"Tom Sweazy" <sweazy@optonline.net> wrote in message
>> >>>news:MwTId.1518$Yv3.523@fe11.lga...
>> >>>
>> >>>
>> >>>>Guylaine J. Parisien wrote:
>> >>>>
>> >>>>
>> >>>>
>> >>>>>you probably have a leaky fuel injector.. have them tested.
>> >>>>>
>> >>>>>
>> >>>>>"Tom Sweazy" <sweazy@optonline.net> wrote in message
>> >>>>>news:x9kId.2624$K42.1102@fe10.lga...
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>>>1988 SR-5 Pickup, 22-RE 4 Cyl. 2.4 liter Engine, 5-Speed Manual,[/color][/color]
>fuel[color=green][color=darkred]
>> >>>>>>injection. No AC.
>> >>>>>>
>> >>>>>>Problem: Engine stutters for a couple of seconds when I step on the
>> >>>>>>gas, but ONLY when accelerating AFTER I was traveling along and
>> >
>> > allowed
>> >
>> >>>>>>the engine to brake the truck. This is the case when I eventually
>> >
>> > come
>> >
>> >>>>>>to a stop and also if I never fully stop. After the stuttering, it
>> >
>> > runs
>> >
>> >>>>>>great even when under heavy load like traveling up a steep hill.
>> >>>>>>
>> >>>>>>Here's the odd part: If I take it out of gear just BEFORE letting[/color][/color]
>the[color=green][color=darkred]
>> >>>>>>engine slow the truck, and allow the RPM's to drop to idle, then put
>> >
>> > it
>> >
>> >>>>>>in gear and accelerate...no stuttering!
>> >>>>>>
>> >>>>>>It's as if something were loading with fuel when I let off on the[/color][/color]
>gas[color=green][color=darkred]
>> >>>>>>pedal and allow the engine to brake, resulting in a too rich mix[/color][/color]
>when[color=green][color=darkred]
>> >
>> > I
>> >
>> >>>>>>accelerate again.
>> >>>>>>
>> >>>>>>I put in a new timing chain last year and the engine ran fine for
>> >>>>>>several months.
>> >>>>>>
>> >>>>>>Items replaced with no effect on stuttering:
>> >>>>>>Spark plugs, ignition wires, distributor cap, rotor, PCV valve, air
>> >>>>>>filter, fuel filter. I checked fairly rigorously for vacuum leaks.
>> >>>>>>
>> >>>>>>Any Ideas?
>> >>>>>>Thanks
>> >>>>>>Tony
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>Hi Guylaine,
>> >>>>Thanks for the tip. Wolfgang suggested cleaning the throttle body,
>> >
>> > which
>> >
>> >>>>I will pursue. When you say that an injector may be leaking, does[/color][/color]
>that[color=green][color=darkred]
>> >>>>imply it allows fuel to pass through when it should be shut off during
>> >>>>deceleration? If so, that would seem consistent with the symptoms. Do
>> >
>> > you
>> >
>> >>>>know what's involved in checking for a leaky injector? Does it require
>> >>>>special equipment?
>> >>>>Tony
>> >>>
>> >>>
>> >>>
>> >>Hi Wolfgang,
>> >>Thanks for the info on the injectors. As soon as the weather breaks and
>> >>I can schedule some downtime I'll most likely go for it. By the way,
>> >>when the engine is warm and I'm idling, sometimes there's a very low
>> >>level pop/skip/stutter and most people don't even notice it. The tach
>> >>barely shows a drop in RPM. Could this be related to the injector
>> >>problem addressed earlier? Some folks have said it's normal for a 4
>> >>cylinder engine. I don't recall it doing that before but maybe I never
>> >>listened close enough.
>> >>Tony
>> >
>> >
>> >[/color][/color]
>
>[/color]