hesitation/stumble 95 tahoe

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quietfly

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i'm having a very similar problem...... i'm up to replacing the TBI injectors.
 

clean454

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So u pulled the vac line off the egr and the truck ran good? Then u cleaned the egr and put it all back together and still runs like crap? Prolly a bad diaphragm in the egr valve. ReLace the egr or just drive around with the line unplugged I did that for about a year until I had todo smog..
The truck won't throw a code for egr and the diagnostics on obd1 is pretty crap.
 
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ERIC95TAHOE

ERIC95TAHOE

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i changed the egr valve after i cleaned it because after i cleaned it it through a code for it, so the egr is brand new and still hesitates
 

retorq

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I love threads where people just throw money at a problem and it doesn't go away ... :D
 
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ERIC95TAHOE

ERIC95TAHOE

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I love threads where people just throw money at a problem and it doesn't go away ... :D

haha i know.
i drove it around tonight and i never had a single problem, so i guess back to one of my other options, buy a plug in and hook up to my computer and see what the ef is going on. i did not know i could do this with obdI but apparently someone said i could before, any one use such thing before? what all will it show me
 

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