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Re: 91 c1500 stutter on acceleration
Update: Last saturday i decided to drive the truck out to my uncle's for further electrical testing and left the O2 sensor unplugged. It finally through a cel about 10 miles down the freeway. The O2 connector was in bad shape and it had 170k miles on it so i replaced it. I checked all of the operating voltages with the truck at temperature and everything seems to be fine. This saturday we are going to begin looking for mechanical problems: fuel pump, fuel return line, pull the valve covers and check the valve adjustments, check vacuum and make sure intake isn't leaking etc. I will update on all findings. Thanks again for everyone's help!
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