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Old 07-28-2018, 11:29 AM   #1
Robert252
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Join Date: May 2014
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93 chevy truck miss 4.3l

1993 chevy silverado 4.3l 2wd. when cold start misses until it warms up and starts to run better but still anit right. I checked the TPS voltage does change with throttle pushed. ran some seafoam through and other fuel additives please help! this is a daily driver to work 100 miles round trip per day
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Old 07-29-2018, 09:10 AM   #2
speedygonzales
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Re: 93 chevy truck miss 4.3l

2 things come to mind.

When was the last time it had a tune up?

What is the fuel pressure?
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