Turns off in drive

2004 GMC YUKON
196,000 MILES • 6.0L • V8 • 4WD • AUTOMATIC
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LYONSDEN
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  • 1 POST
Just completed a motor swap. Vehicle idles okay seemed a little rough at first took for test drive and within half a mile vehicle said reduced engine power. I was able to get back home on flat land and let vehicle idle for a few seemed okay a little stuttering put into drive and shut off , put into reverse shut off . The vehicle has new mass airflow sensor, new catalytic converters, new o2 sensors, new fuel pump, new starter. this engine has 54,000 miles on it from a Savanah. What can it be? this has been a money pit and I want to ram it into a wall at this point! I checked the ground to fire wall and motor and it is tight . I checked ground from starter to body which also seems fine . Please help!
Oct 26, 2017 at 11:10 AM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
First, do not ram it. lol There is no "ground" from the starter to the body. Are you sure something is not wired incorrectly? The starter is grounded through the engine/transmission. As far as the issue, check to see if there are any trouble codes.
Oct 26, 2017 at 6:47 PM
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STRAILER
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  • 53,854 POSTS
Can you run the codes to see what comes up? Here is a guide

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Nov 1, 2017 at 8:46 PM
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