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10-10-2015, 03:02 PM
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#1 |
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Registered User
 Join Date: Jul 2014
Location: Dayton, TX
Posts: 335
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Will it hurt to drive it?
We didn't have time to go through and change everything in the new ECM last night. The new one came from an '03 Tahoe with a 5.3/4L60. I have the 4L80 in the truck. Will it hurt to drive it a little without the ECM being reprogrammed for the 4L80?
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'83 Silverado Step Side '85 GMC short bed. '86 Chevy Step Side Custom Deluxe LQ9/4L80 swap (SOLD) |
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10-10-2015, 09:34 PM
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#2 |
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Registered User
Join Date: Dec 2009
Location: Independence Mo
Posts: 4,119
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Re: Will it hurt to drive it?
Its not going to shift.....
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html |
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10-11-2015, 12:39 AM
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#3 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Will it hurt to drive it?
Hmmm, I wonder if it will limp into 2nd? Or will it just stick in 1st.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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10-11-2015, 08:33 AM
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#4 |
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Registered User
Join Date: Jul 2014
Location: Dayton, TX
Posts: 335
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Re: Will it hurt to drive it?
I guess I should have worded the question a little different. I wasn't asking if I could drive it to town or go for a cruise in it. I just meant to move it around to do a few more things instead of having to push it.
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'83 Silverado Step Side '85 GMC short bed. '86 Chevy Step Side Custom Deluxe LQ9/4L80 swap (SOLD) |
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11-10-2015, 10:39 PM
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#5 |
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Registered User
Join Date: Jan 2014
Location: Houston,TX
Posts: 258
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Re: Will it hurt to drive it?
I love my truck so much I would carry if I could.
My wife & I pushed the truck out of the garage & back in at the end of the night for at least 3 months straight on my 5 1/2 month frame off slash ls swap & she never complained she as in my truck that is 
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11-11-2015, 11:59 AM
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#6 |
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Registered User
Join Date: Apr 2012
Location: Covington, GA
Posts: 386
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Re: Will it hurt to drive it?
If you unplug the transmission connector, it should stay stuck in second when you shift to Drive, and Reverse will work normally.
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Matt Cramer 1972 Chevy C10 - 4.8 swap, long bed, and maybe one dent free body panel somewhere - SOLD 4.8 LS build thread |
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11-11-2015, 12:14 PM
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#7 |
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Ephesians 2:8
Join Date: Mar 2008
Location: Delavan, IL
Posts: 677
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Re: Will it hurt to drive it?
You can move it around, until you get a segment swap done on the ECM. I would limit the use though. or as suggested, unplug the trans wires.
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72 Suburban making it mine My 79 C10 story 79 C10 LS swap 94 LS swapped Daily Driver Tahoe Limited Instagram - @piersonclassics 83 K20 Farm Truck Build |
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