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98 Forester
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2 Posts
Discussion Starter #1
Hi,

My 98 forester is stalling - just quietly dying at traffic lights if engine cold. It starts right up again. I have found that if I let it warm up 5-10 minutes it doesn't stall. I live at 5280 ft. Could it just be my idle setting? The garages and dealers are getting very cagey these days. Can't get a straight answer. Appreciate any feedback.
 

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01 Forester Ltd
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1,062 Posts
Welcome !! to the forum , fun inthe sun, I would recommend giving more info on the 98 , mileage ??, last timing belt change?? Spark plugs ,Plug wires,air filter, fuel filter, are there any vacuum leaks or hoses cracked or disconnected,you may want to clean the MAF sensor but do a search on how to clean it.It could be and a sensor that is going bad , hope tha helps .
 

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MY00 Forester
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40 Posts
welcome to the site, maybe think about having the idle air control motor cleaned, or a top engine cleaner service. more info on the age and condition of forre, last 30k service? maybe set your clock back and it will be better!
 

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98 Forester
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2 Posts
Discussion Starter #4
Thanks Subeyank and Tech mod. Unfortunately not doing the work on my own car I don't know what an MAF is?

Further details if it helps for diagnosing: 123K miles, timing belt replaced at at 70K, fuel filter and air filter replaced in last 10K miles. I did plugs when Subaru recommends ( 75K or ??). I would have to check if plug wires were done - I doubt it. But don't know for sure... are sensors expensive to replace?
Thanks for any more help :)
 

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98 Forrester
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11 Posts
I have this problem also. I have a '98 w/ over 250K miles. Had the plugs, belts and filters replaced in the last six months.

Usually when I start it and it works just fine. About 1 in 5 times it stalls at lights. Starts right up. But occasionally (1 in 20 times it stalls) it will start up but have no power! I pull over and let it rest 20 seconds and then it starts normally.

Very strange. could it be dirt in the fuel lines? I'm at a loss and my mechanic at first said to try the total tune up and replace belts and wires (did it) before we start speculating with expensive, yet non guaranteed fixes on a car that has marginal cash value.

Any ideas or experience with this problem.

thanks,
Matt w
 

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2007 Mitsubishi Pajero 5spd Automatic
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3,594 Posts
My old car an ford escort 96 usually died when cold by just braking down. was a manual ofc. It started up again but needed a few tries. But I think my problem was that it got flooded with gas in the start. Annoying thing.
 

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1999 Forester S
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32 Posts
This was happening to me too. Ocaasionally it would die when hitting the brake hard to come to a stop and then trying to take off again. Started right back up every time. Hasn't happened in the last 7000 miles since the timing belt popped and I had it replaced.
 

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aka DMax in Alaska
'06 Mini Cooper S JCW 6MT
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787 Posts
My son has this problem with his '99 and it turned out to be the Mass Airflow (MAF) sensor. He get a used one from a junk yard, replaced it and all was good and has been for several thousand miles. I think he paid $75 for it.
 

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2007 Mitsubishi Pajero 5spd Automatic
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3,594 Posts
My son has this problem with his '99 and it turned out to be the Mass Airflow (MAF) sensor. He get a used one from a junk yard, replaced it and all was good and has been for several thousand miles. I think he paid $75 for it.
Good point.
 

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98 Forrester
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11 Posts
My son has this problem with his '99 and it turned out to be the Mass Airflow (MAF) sensor. He get a used one from a junk yard, replaced it and all was good and has been for several thousand miles. I think he paid $75 for it.
I will figure out what one of these are and see if it is bad. Is there any trick to telling?

Thanks for the responses.

M
 

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01 Forester S
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102 Posts
Check all your electrical grounds and connections. Corroded grounds can cause a low voltage condition, and stalls at lights/stop signs are in indication of that. Classic problem in mid-late 90's Legacys. Clean ther battery posts and terminals, and the alternator connector at the lug. Eliminate easy fixes, then I'd be +1 on the MAF sensor.
 

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377 Posts
A sticking Idle Air Control Valve (IACV) could also cause this problem. W/ IACV stuck closed, the engine is starved for air and won't idle. As engine warms the IACV may free itself. I've had this on Honda's w/ the result being a very low idle that may stall. I've never had this on my Forester, but it's a possibility. Fix is to remove and clean the IACV valve movement.

good luck
 
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