1990 Grand Voyager LE 3.3 liter V6 -stalling-

Tiny
WILDCATISHERE
  • MEMBER
  • 1990 SUBARU
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:


http://www.2carpros.com/forum/automotive_pictures/66210_beastlyvan_sm_1.jpg



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

Thank you,
Gary
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Tuesday, March 27th, 2007 AT 2:32 PM

8 Replies

Tiny
MERLIN2021
  • EXPERT
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.
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Tuesday, March 27th, 2007 AT 2:42 PM
Tiny
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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
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Tuesday, March 27th, 2007 AT 2:48 PM
Tiny
MERLIN2021
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I'm Here but browse mostly Ford and Merc. PM me if you need to!
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Tuesday, March 27th, 2007 AT 2:56 PM
Tiny
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Will do!
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Tuesday, March 27th, 2007 AT 3:04 PM
Tiny
MERLIN2021
  • EXPERT
Is it rough only at idle? If so try cleaning or replacing the idle air controller.
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Thursday, March 29th, 2007 AT 2:16 PM
Tiny
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It's not rough at idle at all. It just dies when I stop quickly or from highway speed (like to make a turn.)
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Friday, March 30th, 2007 AT 9:36 PM
Tiny
WRX246
  • MEMBER
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
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Sunday, July 15th, 2007 AT 8:27 PM
Tiny
WILDCATISHERE
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: Are you recommending Subaru engine cleaner for a Plymouth or did you misread my question :
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Monday, July 16th, 2007 AT 8:15 PM

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