1990 Grand Voyager LE 3.3 liter V6 -stalling-

1990 SUBARU
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WILDCATISHERE
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My $200 find, known as "the Beastlyvan," has only one major issue that bothers me.

The engine stalls when decelerating from highway speeds, such as when preparing to make a turn or approaching a stoplight.

It idles fine (perhaps even a little fast, I'm not sure - in a moment, I'll tell you why I believe so) and does not stall under any other circumstance. Whatever the issue is, I believe it may be contributing to poor gas mileage as well.

This is a 1990 Grand Voyager LE with a 3.3 liter V6 and over 170k miles. It came with the stalling problem. Shortly after I purchased it, I had the fluids changed and my oil and air filters replaced. No obvious problems (like debris in the fluids) were noted.
--Important Note-----------------------------
Just after participating in this discussion, I remembered that this van (the 3.3 liter) is fuel injected and uses a distributorless ignition system. While the advice already given would be helpful with normally aspirated models, it doesn't work for this van. Any ideas?
----------------------------------------------

As for the idling, last week my girlfriend's Subaru broke down (fuel pump). It was about 2am, so I bought a tow strap and towed it to the shop with my van (an adventure it was, yes). The van pulled her car just fine at idle, that is why I think it might be idling a little fast.

The Beastlyvan:

[img:a53cd0b7d6]http://www.2carpros.com/forum/automotive_pictures/66210_beastlyvan_sm_1.jpg[/img:a53cd0b7d6]

Any help you can offer to make the Beastlyvan a little less beastly would be appreciated. :wink:

Thank you,
Gary
Mar 27, 2007 at 2:32 PM
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MERLIN2021
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ther may be a reason the van idles high...it was adjusted high to cover a stalling problem. If you have a tachometer, adjust it to 850 RPM if you can! I had one of these vans and it had a Mikuni Japanese carb on it...EXPENSIVE! This was about 10 years ago...the put too much plastic in em and the warp..causing air leaks. Only fix, if this is true in your case is a new carb! Get some gumout and sprey around the base of the carb, if the idle changes you have found a leak.
Mar 27, 2007 at 2:42 PM
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WILDCATISHERE
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original post: "gumout is always useful"

-oops-

Sorry about the misunderstanding, I can't believe I forgot it was fuel injected. Haven't spent much time under the hood of this van. :P
Mar 27, 2007 at 2:48 PM
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MERLIN2021
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I'm Here but browse mostly Ford and Merc...PM me if you need to!
Mar 27, 2007 at 2:56 PM
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WILDCATISHERE
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will do!
Mar 27, 2007 at 3:04 PM
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MERLIN2021
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is it rough only at idle? if so try cleaning or replacing the idle air controller...
Mar 29, 2007 at 2:16 PM
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WILDCATISHERE
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[quote:b21505bb8e="merlin2021"]is it rough only at idle? if so try cleaning or replacing the idle air controller...[/quote:b21505bb8e]

It's not rough at idle at all. It just dies when I stop quickly or from highway speed (like to make a turn.)
Mar 30, 2007 at 9:36 PM
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WRX246
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if i were you i'd run 2 lots of subaru upper engine cleaner throught the intake system & it should solve the rough idle problem

i did this to mine


& it runs as smooth as now

thanks
Jul 15, 2007 at 8:27 PM
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WILDCATISHERE
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[quote:0056be3270="wrx246"]if i were you i'd run 2 lots of subaru upper engine cleaner throught the intake system & it should solve the rough idle problem

i did this to mine


& it runs as smooth as now

thanks[/quote:0056be3270]

:?: Are you recommending Subaru engine cleaner for a Plymouth or did you misread my question :?:
Jul 16, 2007 at 8:15 PM