# Motor Swap Chevy Truck

**URL:** <https://community.cartalk.com/t/motor-swap-chevy-truck/63804>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, 1500\
**Created:** [April 17, 2011, 10:10pm UTC](https://community.cartalk.com/t/motor-swap-chevy-truck/63804 "2011-04-17T22:10:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mslund1](https://avatars.discourse-cdn.com/v4/letter/m/b4bc9f/32.png) [@mslund1](https://community.cartalk.com/u/mslund1)\
**Post date:** [April 17, 2011, 10:10pm UTC](https://community.cartalk.com/t/motor-swap-chevy-truck/63804/1 "2011-04-17T22:10:03Z")

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Recent motor swap, wont turn over, headlights come on when key is on accesory  
  
 Wiring problem?  
  
 Stock Harness.  
  
 ONLY wires touched were for throttle body and fuel ingection.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [April 17, 2011, 10:16pm UTC](https://community.cartalk.com/t/motor-swap-chevy-truck/63804/2 "2011-04-17T22:16:36Z")

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The first thing to check for after a motor swap and electrical problems arise is if all the grounds are reconnected. Such as from the engine to the firewall, engine to frame, and negative battery terminal to engine.

Tester

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**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\
**Post date:** [April 17, 2011, 10:18pm UTC](https://community.cartalk.com/t/motor-swap-chevy-truck/63804/3 "2011-04-17T22:18:33Z")

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Try bypassing the ignition system and jump wire directly from the battery to the starter and see if the starter engages. If so it’s wiring…if not it’s probably the starter.

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**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\
**Post date:** [April 18, 2011, 1:02am UTC](https://community.cartalk.com/t/motor-swap-chevy-truck/63804/4 "2011-04-18T01:02:33Z")

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After 1981, engine swapping became an exercise in futility…Unless you are an electronics engineer, computer expert, hacker-spoofer it’s nothing but heartbreak and sorrow and boat-loads of money spent…