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Discussion Starter · #1 ·
i have a 92 ext. cab v6 that i cant get straight. sometimes it runs fine but other times it runs like crap it seems like it only does it at 2000-2500 rpms its like its surgeing going down the road, it also mist real bad when acel. hard. i have already changed the fuel pump,fuel filter,rotar,dis. cap,plug wires. i dont believe the timing belt has been changed, it has 200k miles. any help on this one
 

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I had similar issues on my 95 v6. My timing was off and my throttle position sensor was out of adjustment. Just a thought
 

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Discussion Starter · #3 ·
thanks for the input, i've about had it with the truck. just when you think you figured it out it starts acting up again. somebody told me that it could be tho o2 sensor, is this true
 

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Languishing in Virginia
1994 XtraCab 4x4 P/U
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2,026 Posts
Could be:

Fuel pressure regulator
Vacuum leak
Bad distributor
Bad TPS
Bad VAFM

Doubtful the O2 sensor could cause your issues.
 
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