A ground issue is what I've been thinking it is I've only owned the Tahoe for a week and it came with these problems and ik a ground issue can cause these problems just not sure which grounds it could be be I'm also going to try swapping the coil packs around because I changed the spark plugs...
I'll try the ignition coils and see if it followes I hooked my scanner to it and it's cylinder 1 and 4 misfiring I've done replaced plugs and wires next is ignition coils. I've read the "U" codes are a typical problem when you have a bad ground etc or maybe even a failing bcm that's why I'm...
I'm new here thanks in advance for any advice. I have a 07 Tahoe Lt 5.3 I have a stability control and traction control light on as well as engine codes with a plethora of "U" codes being thrown my radio will cut on for about 10-15 secs and then cut off anywhere from 15 seconds to 30 seconds...
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