Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Stalls when I switch to reverse

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Old Oct 10, 2023 | 10:03 PM
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Default Stalls when I switch to reverse

Hopefully I’m putting this out in the right place. Finishing up my LS SWAP in my 61 impala convertible. The motor is a 2004 Silverado Z71 , with a 4l60e trans. It’s drive my cable, pcm has been flashed. Motor is basically stock. All other gears werk fine, but when I switch to reverse, it stalls. I have no idea what I’m missing here. Has anyone else experienced this? Thanks in advance
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Old Oct 11, 2023 | 01:32 PM
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when cold AND fully warmed up?
when going from park to reverse AND when going from neutral to reverse?
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Old Oct 11, 2023 | 07:38 PM
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Originally Posted by TrendSetter
when cold AND fully warmed up?
when going from park to reverse AND when going from neutral to reverse?

yes sir, no matter which gear I’m in and switch to reverse it stalls.
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Old Oct 11, 2023 | 07:46 PM
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Have you gotten it into reverse with it running? Does it move normally ? Or is the trans locked up in reverse?
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Old Oct 12, 2023 | 07:44 AM
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Originally Posted by TrendSetter
Have you gotten it into reverse with it running? Does it move normally ? Or is the trans locked up in reverse?

it will go into reverse gear, but as soon as it does, it chugs and stalls.
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Old Oct 12, 2023 | 09:39 AM
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You have a short somewhere.
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Old Oct 12, 2023 | 10:12 PM
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Originally Posted by G Atsma
You have a short somewhere.
could you be alittle more specific ? There’s a lot of electrical here lol
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