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truck shuts off at 70mph

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  #1  
Old 12-29-2011 | 03:12 PM
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Default truck shuts off at 70mph
I have a 1995 ram 1500 4x4 with a 5.2. When I hit 70 mph on the highway, the transmission acts like it goes into neutral, the speedo goes to 0, and when i slow down to a stop, it stalls out. I let it sit a couple minutes then it starts right back up. its almost like the computer is freaking out in my opinion. the truck acts normal till i hit 70. mechanics look at me and all tell me they never ran into a problem like this. I have been looking all over trying to figure out what the problem is. i really would like to fix it because i need it for work. can someone please help me? thank you.
 
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Old 12-29-2011 | 03:15 PM
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If you stay under 70, will it continue to run normally?
 
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Old 12-29-2011 | 03:48 PM
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I'm going with crank sensor.
 
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Old 12-29-2011 | 03:57 PM
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Originally Posted by 318Ram4x4
i really would like to fix it because i need it for work. can someone please help me? thank you.
looks like no speeding for you for a while till its fixed
 
Last edited by Augiedoggy; 12-29-2011 at 04:00 PM.
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  #5  
Old 12-30-2011 | 06:38 PM
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under 70 its normal. it sucks when i go under 70 on the highway, even though its gonna save me from speeding and what not.
 
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Old 12-30-2011 | 06:40 PM
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+1 cks.. loses signal.. click- no runny..
 
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Old 12-30-2011 | 06:54 PM
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im gonna try the crank sensor. ill let all of you know so if anyone has the same problem all of you would know the fix.
 
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Old 01-03-2012 | 09:48 PM
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thank you everyone for the advice, it was the crank sensor.
 
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Old 01-05-2012 | 08:42 AM
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My 96 seems to shut off at 114 MPH.
 
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Old 01-05-2012 | 10:27 AM
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Good call from the almight zman and 2nded by smarty pants drewactual.

Curious, what is the default cutoff speed by the PCM?
 
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