1991 New Yorker; Stalls and no real symptoms

smartone_109 · #1 03-11-2006, 01:47 AM

I recently bought a 1991 New Yorker Salon one month ago. It has a V-6 3.3 L engine and 4 speed trans w/OD. It runs great and I have drove it for the last month with no problems. Thursday I was driving home and i was on the highway and it just stalled. I started it with 15 seconds and it started up, and i continued figuring it was just a bug or somthing and it did it again and again. I got off an exit to go back into the city and made it to a gas station figuring maybe it was out of gas and my guage was broke, even though not symptoms of no gas. I put gas in it and i took off. I was going up a big hill and it stalled again, I pulled into a resturant and i left it there overnight. I drove it home the next day with no issues (30 miles) and changed the fuel filter which was quite plugged. I let it run for 10 minutes only to have it stall again. I tried to start it and it wouldnt fire. I shut it off and wait a few seconds and tired again and it fired up and idled for 30 minutes just fine. So the question is, what is doing this? I think the oxygen sensor is bad and the PCV valve is bad or the hose is plugged. Does anyone have any ideas?

smartone_109 · #2 03-13-2006, 12:01 AM

Update: I have a new symptom. It will stall, but will restart itself it I do not take it out of park, as the trans keeps the engine turning. Any ideas? MAP sensor or cranksensor maybe? Any bad wires or plugs I should look for?

jdl · #3 03-13-2006, 02:00 PM

Are there any trouble codes? Can't you get codes by cycling the ignition switch? If you think it might be a fuel issue, hookup a fuel gage, let the vehicle idle in the driveway, see if it will stall, what's the fuel pressure doing when it stalls? At the least you could rule out the fuel system. Maybe your running lean for some reason, I wonder what the 02 sensor shows?

smartone_109 · #4 03-13-2006, 10:05 PM

No codes, I checked awhile ago, I had the oxygen sensor code, but we replaced it and it still stalls. When it stalls idleing, it still has fuel pressure. It is electircal. What would a crank sensor going bad do? I had someone say it could be it.

jdl · #5 03-14-2006, 10:05 AM

If there is a code, I follow the code as far as it will take me, even if the problem turns out to be something else. With an 02 sensor code, I look at the 02 signal, is it high or low? If it is high, I lean the system to see if the signal will react to what I'm doing, if it does, then the 02 sensor is probably ok, it is only reacting to the system. Does the vehicle still show an 02 sensor code? I don't know how many miles is on your vehicle, if that is the first time you've changed the 02 sensor, it probably needed it, reguardless.

Your problem may be electrical. If you lose the crank signal the vehicle will die. With the vehicle idling, you might tap on the sensor and wiggle the connector, see if there is any reaction. I believe you can check the signal with a dwell meter, at idle, should be about 50, shouldn't vary much, if at all.

If you think the problem is a sensor, you can check them all, one at a time, if you don't have a scanner. I can't tell what you've got going on, right now.

slantsixness · #6 03-20-2006, 09:49 AM

map sensor, TPS sensor, manifold temperature sensor, crank sensor.
Check them.

One is bad

smartone_109 · #7 03-25-2006, 12:35 AM

well, actually here is an update. Getting sick of the backfiring and stalling constanlty, and my muffler exploded too. We figure, have the dealer plugg it in and see whats wrong, and it never stalled ofr them, in four hours of driving/idling. so nothing was wrong, everything was ok. so, the only thing different was the fact that i gave them my spare key, which isnt worn, is that possiblefor it to cuase stalling?

89ltd · #8 06-05-2006, 02:55 PM

usuall things that would make it quit would be cam or crank shaft sensor or pickup coil in distributor if you have one. O2 sensor, map, mat,egr etc would put it into limp mode , but it wouldn't make it stall. a lot of the time crank and cam sensors don't always throw a code until they are totally shot.

mycars · #9 07-28-2006, 05:05 PM

Quote:

Originally Posted by smartone_109

I recently bought a 1991 New Yorker Salon one month ago. It has a V-6 3.3 L engine and 4 speed trans w/OD. It runs great and I have drove it for the last month with no problems. Thursday I was driving home and i was on the highway and it just stalled. I started it with 15 seconds and it started up, and i continued figuring it was just a bug or somthing and it did it again and again. I got off an exit to go back into the city and made it to a gas station figuring maybe it was out of gas and my guage was broke, even though not symptoms of no gas. I put gas in it and i took off. I was going up a big hill and it stalled again, I pulled into a resturant and i left it there overnight. I drove it home the next day with no issues (30 miles) and changed the fuel filter which was quite plugged. I let it run for 10 minutes only to have it stall again. I tried to start it and it wouldnt fire. I shut it off and wait a few seconds and tired again and it fired up and idled for 30 minutes just fine. So the question is, what is doing this? I think the oxygen sensor is bad and the PCV valve is bad or the hose is plugged. Does anyone have any ideas?

When you say it wouldn't fire do you mean the starter is not cranking at all, or it is cranking but engine won't start.
It could be intermittent electrical problem of your alternator, or the Safety switch in the transmission is intermittently bad.

mikris · #10 08-21-2006, 08:07 AM

Does the vehicle have a factory alarm? Does the alarm light come on when this occurs? You may want to check that.

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