Re: 2005 Hemi Ram stalling at speed
[Re: B1arno]
#1516373
10/13/13 12:32 AM
10/13/13 12:32 AM
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Joined: Feb 2008
Posts: 163
Winnipeg, MB
sreinheimer
member
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member
Joined: Feb 2008
Posts: 163
Winnipeg, MB
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check and see if the throttle body is dirty and clean it. also check trans fluid level
69 Dodge Charger - first full resto
05 Dodge Magnum R/T
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Re: 2005 Hemi Ram stalling at speed
[Re: B1arno]
#1516374
10/13/13 12:45 AM
10/13/13 12:45 AM
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Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog
Striving for excellence
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Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
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Quote:
This was like I turned the key off. Does injection sputter, or does it just go dead?
Smarter guys may chime in after me, but keep in mind that EFI runs at 50 psi or more compared to a 4-6 lbs on a carbureted engine. If the pressure is meant to be at 50 and drops much below that, I'd expect to see a few hiccups.
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Re: 2005 Hemi Ram stalling at speed
[Re: B1arno]
#1516376
10/13/13 10:43 AM
10/13/13 10:43 AM
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Joined: Aug 2010
Posts: 343
S.E.Mich
drew72
enthusiast
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enthusiast
Joined: Aug 2010
Posts: 343
S.E.Mich
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Quote:
This brings up an interesting question. I've never experienced a fuel delivery problem in an injected vehicle. Does it differ from a carburated vehicle? Fuel problems I've experienced in the past have kind of sputtered and then died. This was like I turned the key off. Does injection sputter, or does it just go dead?
Port injected vehicles will feel like they just died. It takes full fuel pressure to open the injectors.
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Re: 2005 Hemi Ram stalling at speed
[Re: drew72]
#1516377
10/13/13 11:28 AM
10/13/13 11:28 AM
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Joined: Oct 2005
Posts: 4,954
WI
Dcuda69
master
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master
Joined: Oct 2005
Posts: 4,954
WI
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Quote:
Quote:
This brings up an interesting question. I've never experienced a fuel delivery problem in an injected vehicle. Does it differ from a carburated vehicle? Fuel problems I've experienced in the past have kind of sputtered and then died. This was like I turned the key off. Does injection sputter, or does it just go dead?
Port injected vehicles will feel like they just died. It takes full fuel pressure to open the injectors.
Fuel pressure does not open injectors...electrical current flow does. Because this vehicle starts right back up,I'm not sure it's fuel pressure(if it was it would require extended crank time to build pressure again) My thoughts go with the dirty throttle body(both times it acted up was in a closed throttle position)my second guess would go with the crank sensor...a scan tool capable of watching data at the time of failure will be helpful here. Good luck with it  
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Re: 2005 Hemi Ram stalling at speed
[Re: Wicked49670dart]
#1516378
10/13/13 11:58 AM
10/13/13 11:58 AM
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Joined: Jan 2007
Posts: 1,039
Redwood City Ca.
B1arno
OP
super stock
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OP
super stock
Joined: Jan 2007
Posts: 1,039
Redwood City Ca.
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Quote:
So from your post, acts like the key is just turn off while driving. Most of the time a fuel pump will act as if you are running out of fuel, from what you described sounds like a crank sensor. Do you have a scan tool to check for codes and read cam/crank sensor data? Matt
I do not have a sacan tool but I think I can borrow one. I've had bad cam sensors show up with the key on/off trick and I'm assuming a bad crank sensor would show up there too. Could one of them just not be "bad enough" to show up.
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Re: 2005 Hemi Ram stalling at speed
[Re: sreinheimer]
#1516382
10/13/13 11:57 PM
10/13/13 11:57 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
check and see if the throttle body is dirty and clean it. also check trans fluid level
This is what you want to do. It sounds like a dirty throttle body as you say it stalls when you let off the gas. And check the trans fluid in nuetral and not Park. The 45 and 545RFE's can stall if trans fluid it to low because the fluid on that trans holds the lock-up converter off and if it gets low on fluid I have seen them partially lock the converter and stall the eng. These lock-ups work a little different then the other Mopar trannys as on the 45 and 545RFE trannys the fluid pushes the lock-up converter off. When it locks up it will change the fluid direction and let the lock-up clutch engage which can happen when low on trans fluid as it may not have enough fluid there to hold the converter off if low on fluid and it will be just like letting the clutch out on a stick car when stopped and stall the eng. Ron
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I muscled the truck around the corner, slapped it into neutral, and restarted the truck no problem. It ran fine the rest of today. I did the key on/off/on thing and no codes come up. Any ideas? It was pretty scary this morning almost going head on into oncoming traffic.
