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Old 04-10-2022, 01:51 PM   #1
19Suburban69
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Join Date: Nov 2018
Location: Applegate, Ca 95703
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Lost pedal response

Installed 2006 6.0 out of escalade with 4L80 about a year ago. PSI harness, stock pedal/module assy and stock ECM. Yesterday on freeway lost pedal response. Engine running, but no power. Pulled over turned key off and found nothing obvious. Started up, all okay. Drove a mile or two and same thing. Pulled over waited about 30 seconds, restated and all okay. Fought it a few more times getting it home. Once it went into limp mode and only 30 mph. Where do I start? I don't have code reader. Would it show what's going on?
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1955 Chevy, 2 dr post, my first car

1969 Chevy C20 Suburban, 6.0 LS w/4L80

2001 Silverado Z71, 5.3 extended cab
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Old 04-10-2022, 08:35 PM   #2
Ziegelsteinfaust
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Location: Temple City
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Re: Lost pedal response

Code reader would be the start.

On my E150 that's how the fuel pump showed up as the issue.
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Old 04-11-2022, 06:49 AM   #3
CarlsLQ9SS
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Location: London, Ky
Posts: 1,159
Re: Lost pedal response

Sounds like either the tac module or the pedal.
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1971 GMC short bed, (Henry)
Options I've added, tilt, ac, 8k tach,
Electric speedometer conversion for LS swap,
6.0 with 823 heads and BTR stage 4 truck cam,
4L80e, posi with 3.73 rear end,
Power steering and power brakes
Lowered 5/7. Frame up build.
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