Engine Stalling
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Engine Stalling
So I'm currently deployed to Afghanistan and of course, my truck is acting up back home. My girlfriend is currently driving the truck daily. The truck is a 1995 f-250, 2wd, single cab, long bed, 7.3L, automatic transmission, with about 290k. When I left the truck ran GREAT!!! I'm blaming my girlfriend... j/k.
apparantley the truck is dying at random times. At first I suspected that the torque converter was locking up at low RPMs causing a stall, but she tells me it'll also randomly die driving 70 down the highway. I though maybe a loose ground, but she says there appears to be no electrical problems. no flashing of the lights, no gauges dropping, etc. my next guess was a clogged fuel filter, but that just doesn't seem to fully explain it either. I'm having her take it into the shop for a diagnosis, but so far nothing seems to quite explain the problem. the truck always stops right back up and she can go along on her way, but it is doing it more and more often. she has not reported any dummy lights coming on, with the exception of the ABS lights flashing on from time to time.
Any one else experience a similar problem? Any ideas?
Thanks for your input.
apparantley the truck is dying at random times. At first I suspected that the torque converter was locking up at low RPMs causing a stall, but she tells me it'll also randomly die driving 70 down the highway. I though maybe a loose ground, but she says there appears to be no electrical problems. no flashing of the lights, no gauges dropping, etc. my next guess was a clogged fuel filter, but that just doesn't seem to fully explain it either. I'm having her take it into the shop for a diagnosis, but so far nothing seems to quite explain the problem. the truck always stops right back up and she can go along on her way, but it is doing it more and more often. she has not reported any dummy lights coming on, with the exception of the ABS lights flashing on from time to time.
Any one else experience a similar problem? Any ideas?
Thanks for your input.
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Elder User
Joined: Nov 2005
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not the fuel bowl heater. I know this only because the fuel bowl heater is bad and i disconnected it. could be the CPS. Hadn't thought on that one. As i recall this was a common fault on the OBS powerstrokes. anybody verify?
Hotshot
Joined: Oct 2003
Posts: 17,791
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From: Ashland City, TN
Usually they just quit, don't intermittently stall then start running again. Though, it does happen.
Has she checked the oil? Low oil can cause the symptoms your saying as well.
CPS is a common 7.3 problem, obs or nbs.
Has she checked the oil? Low oil can cause the symptoms your saying as well.
CPS is a common 7.3 problem, obs or nbs.
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Then I guess the ideal would be to have her fix it before it dies for good, and doesn't start back up. I'm having her run it by the box-parts-store to have them scan the OBD and see if anything pops up. I think she's mechanically inclined enough to fix it herself if it is the CPS, otherwise my neighbor is a hell of a mechanic, and he might be willing to help. I'm having her check the fluid levels, but it hadn't been burning oil when i left, and she just had the oil changed 3 months ago by the international dealership in town, so it should be good in that department. I'm having her change the oil again next month also. normally I go longer, but she drives a lot of short trips, so I don't want to take a chance when I'm not home to oversee the mainenance.
Postmaster
Joined: Jun 2007
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From: Rogue River, OR
Have her get a new CPS at International. I understand that they have a new & improved CPS.
Rog
Rog
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she's in upstate NY, north of fort drum. I had her place the CPS on order at the box store. She's calling the rear detachment NCO to have him come take a look (I was the XO of a mainenance company when i deployed... talk about living the dream in a heated shop while i was there). He was a ford factory mechanic for about ten years, so he's pretty good most of the time. I'm hoping he'll come take a look. thanks for the offer though
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UPDATE:
Well, I ordered the parts, and my neighbor did the honors of the installation. The truck stopped stalling, no more problems. I asked how it went, and my girl said it went great. she tells me, "yeah, it was easy, he just pulled the old filter and dropped the new one in. Even I could do that..." So I had to ask if he drained the fuel bowl first.
"nope."
So I'm hoping that I didn't get sediment into the injectors. This is the prime example on why I, like most of you, prefer to do things myself. The small extra steps that make the difference between doing things correctly, and doing things half-a$$ed.
But, now the truck has a new CPS, and a new fuel filter. Hopefully thats the only demon we have to fight on the truck while i'm gone.
On the bright side, he did notice that the serp. belt had some major checking in it, and he's going to put a new belt on for her after work tonight. luckily, they keep those in stock.
Well, I ordered the parts, and my neighbor did the honors of the installation. The truck stopped stalling, no more problems. I asked how it went, and my girl said it went great. she tells me, "yeah, it was easy, he just pulled the old filter and dropped the new one in. Even I could do that..." So I had to ask if he drained the fuel bowl first.
"nope."
So I'm hoping that I didn't get sediment into the injectors. This is the prime example on why I, like most of you, prefer to do things myself. The small extra steps that make the difference between doing things correctly, and doing things half-a$$ed.
But, now the truck has a new CPS, and a new fuel filter. Hopefully thats the only demon we have to fight on the truck while i'm gone.
On the bright side, he did notice that the serp. belt had some major checking in it, and he's going to put a new belt on for her after work tonight. luckily, they keep those in stock.
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UPDATE 2:
Well, the CPS and fuel filter didn't fix the problem. My girl tells me that there is some fluid leaking under the truck, but it doesn't sound like much. I'm guessing there is a slight oil leak. Normally, I would write this off as par for the course for an aging truck, but I'm worried it may be from the high pressure lines. Would insufficient oil pressure to the injectors cause stalling at low RMS?
My next guess would be the ICP sensor, but she's telling me the CEL isn't coming on. I'm kind of at a loss. I don't have a scanner, and advance and autozone both say they can't check the codes on the truck. If I were home this would be my excuse to get a scanner, but I'm not going to order one while just she's home, I don't think it'd help her that much.
So, I'm again looking for ideas. I'm not going home until december, so I don't want her having to deal with this problem until then.
Open to any ideas. Please help
Well, the CPS and fuel filter didn't fix the problem. My girl tells me that there is some fluid leaking under the truck, but it doesn't sound like much. I'm guessing there is a slight oil leak. Normally, I would write this off as par for the course for an aging truck, but I'm worried it may be from the high pressure lines. Would insufficient oil pressure to the injectors cause stalling at low RMS?
My next guess would be the ICP sensor, but she's telling me the CEL isn't coming on. I'm kind of at a loss. I don't have a scanner, and advance and autozone both say they can't check the codes on the truck. If I were home this would be my excuse to get a scanner, but I'm not going to order one while just she's home, I don't think it'd help her that much.
So, I'm again looking for ideas. I'm not going home until december, so I don't want her having to deal with this problem until then.
Open to any ideas. Please help
Hotshot
Joined: Feb 2009
Posts: 10,408
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From: Plankinton, SD
Possibly the fuel pump is shot, not keeping up pressure so it would not run, now leaking on the ground. Just a thought, should check the fuel pressure at the schrader valve while cranking over, see what it is.
