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Help new 4l80e is in now truck wont start

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Old 02-18-2012, 05:46 PM
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Exclamation Help new 4l80e is in now truck wont start

I have no line under the gears when shifting in and out of gears. WTH could this be?
Old 02-18-2012, 05:49 PM
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Sounds like an issue with the neutral switch/wiring on the side of the trans.
Old 02-18-2012, 06:21 PM
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THat's what I am thinking. I tried 2 different nuetral safety switch boxes already (the one that hooks the shifter linkage if that's what it's called) Still no start. I am puzzled
Old 02-18-2012, 06:28 PM
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Did you check to make sure all the fuses are good?
Old 02-18-2012, 06:51 PM
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if the NSS is bad enough out of adjustment it will cause a no-start also. Check your wiring and connections and try again. a little dielectric grease in that connector will keep water out as well.
Old 02-18-2012, 07:00 PM
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fuses are good

How do you check if the nss is out of adjustment? I have adjusted it by the slotted holes but is there another way because that didn't work.
Old 02-18-2012, 07:08 PM
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Hold the key in the start position and move the shifter while keeping you foot on the brake. If the engine starts to crank its safe to say the switch is out of adjustment.
Old 02-18-2012, 07:13 PM
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put the truck in reverse, obviously with the parking brake on and/or truck in the air you rotate the switch until the reverse lights come on, then snug it up. It may not be the right way to do it I guess but its always worked for me.

if your wiring is not right all together though this may not work.
Old 02-18-2012, 07:27 PM
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Originally Posted by silver-mod-o
put the truck in reverse, obviously with the parking brake on and/or truck in the air you rotate the switch until the reverse lights come on, then snug it up. It may not be the right way to do it I guess but its always worked for me.

if your wiring is not right all together though this may not work.
Good tip . i will have to remember that.
Old 02-18-2012, 07:58 PM
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Originally Posted by silver-mod-o
put the truck in reverse, obviously with the parking brake on and/or truck in the air you rotate the switch until the reverse lights come on, then snug it up. It may not be the right way to do it I guess but its always worked for me.

if your wiring is not right all together though this may not work.
I like that!!


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