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Thread Tools |
05-08-2008, 02:35 PM
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#1 (permalink) |
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Registered User
Join Date: May 2008
Posts: 1
OS: winmobile
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1995 chevy silverado rough idle and performance problems
my chevy idles very rough
and it will only accelerate to 2500 rpms then it just spits gas out the exhaust and backfires. I have replaced the coil the plugs and wires the distributor the computer the fuel pump and filter I cant seem to figure it out please help me |
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05-08-2008, 06:04 PM
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#2 (permalink) |
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Registered User
Join Date: Apr 2007
Location: Ct.
Posts: 166
OS: win xp sp2
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Re: 1995 chevy silverado rough idle and performance problems
A little more info would help.Engine info,when it does this etc.Depending on how it's equipped could be a bad mass air flow ,coolant sensor,map sensor,bad injector etc.Sounds like a scan tool would be a big help at this point to see what the ECU is seeing.
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05-11-2008, 01:33 AM
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#3 (permalink) |
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Asst. Manager, Automotive Forums; HJT Trainee
Join Date: Jan 2003
Location: Behind you, watching you as you type.
Posts: 7,211
OS: Click "My System" to view details
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Re: 1995 chevy silverado rough idle and performance problems
the only time i can recall gas being spit out the tailpipe on a fuel injected car, it was the o2 sensor.
to check this little guy, you take him out, get a propane torch, and you use a voltmeter and a propane torch to test his voltage output. i think it's supposed to be around 1.5 volts, but i'm not positive. the manual would show you the entire procedure. (or basically any manual for any car, an o2 sensor is an o2 sensor.)
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