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2001 silverado 5.3 random misfire, light on and flashes at
Second opinion] 2001 silverado 5.3 random misfire, light on and flashes at acceleration, took to mechanic and they say its the ecm… read more
Tim Mohr
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2001 silverado 5.3, has a misfire, fuel pressure was good
2001 silverado 5.3, has a misfire, fuel pressure was good but pump eventually went out and was replaced, truck started immeditly and idled well but slightly then rough idle, drives great with power th… read more
Amedee
Amedee
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2001 silverado 5.3 355k miles,good power, check engine light
Hello, 2001 silverado 5.3 355k miles,good power, check engine light on,starts rough idle then gets better within 2 minutes but if it doesnt get better I turn off and restart and idle is better,light f… read more
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Codes out p0101, p0154, p0171, p0174, p0300 idles rough when
codes out p0101, p0154, p0171, p0174, p0300 idles rough when cold but not all the time … read more
robert legowski
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Chevrolet Silverado 1500: 2004 silverado 5.3 p0300 0131 0136
2004 silverado 5.3 p0300 0131 0136 0171. Drivers side plugs black and sooty, passenger side clean. Runs rough at idle. Sprayed intake with water bottle no change. Doubtful both o2 sensors failed same … read more
Dave Nova
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Chevrolet Tahoe 4x4: 2004 Chevy Tahoe 4x4 4.8L engine 150,000
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ZZDaryl
ZZDaryl
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2002 silverado 5.3 liter runs rough when cold...p0171..light flashing
2002 silverado 5.3 liter runs rough when cold. code p0171, and p0174 set ses light on. this morning ses light flashing. occasionally p0300 code will set in the morning.… read more
Anthony
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2002 chevy: cause a random misfire..trouble codes..p0174 p0171
What would cause a random misfire, system to lean bank 1 and 2? The trouble codes are p0300 p0174 p0171 on a 2002 chevy 5.3… read more
hauto
hauto
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We have a chevy silverado with a 5.3 liter engine. Its an
We have a chevy silverado with a 5.3 liter engine. It's an 03' The check engine light goes on in the morning when we are warming it up. We took it to the dealer and they said all 8 cylinders are misfi… read more
Michael Moore
Michael Moore
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1999 chevy tahoe: I checked the fuel pressure while running 54 lbs.3.
1999 chevy tahoe. 1. I have 2 codes I pulled togather po0171 - po0174 both at the same time. 2. I checked the fuel pressure while running 54 lbs. 3. Raping the throttle it gos up about 5 lbs. 4. When … read more
John
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2002 Chevy Silverado 2500 HD: I plug a scanner..Tune..injector flush
I ahve a 2002 Chevy Silverado 2500 HD with the 6.0L gas engine with 116K miles. At 70 MPH, the SES flashes and a code of P0300 is listed when I plug a scanner in. Tune up was done at 100k along with a… read more
ZZDaryl
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Chev..air filter..intake..the check engine light keeps coming
Got 5.3 sfi 2003 chev , have replaced both oxygen sensors, air filter, removed and replaced boot to intake at engine, found no problems. I cant figure why the check engine light keeps coming back on a… read more
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1996 chevy blazer: 4.3L..4 wheel drive &..check engine light..p300
I have a 1996 chevy blazer 4.3L engine, 4 door,XXXXX& have for the past 5 months not been able to get rid of my check engine light...initially code p0300 & p1441 came up...mechanic changed the fuel in… read more
mike
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I have a 2002 Tahoe the check engine light is on, my Tahoe
I have a 2002 Tahoe the check engine light is on, my Tahoe runs ruff at idle but runs fine when it warms up to operating temp. I checked and found 2 codes P0420 and P0423. Can you please help me. Than… read more
Mark Bisig
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2001 yukon: 4x4 5.3 auto 184k miles..maf sensor..throttle..surges
Iam workingon a 2001 yukon xl 4x4 5.3 auto 184k miles. It is throwing P 0171 and p 0174 trouble codes. I have cleaned the MAF sensor (it was dirty) and replaced the throttle body(it had over 1/16 in o… read more
goodwrench9124
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my inlaws have a 2004 gmc yukon xl 4x2 with a 5.3 ...
my inlaws have a 2004 gmc yukon xl 4x2 with a 5.3 engine.the vehicle runs rough check engine light flashes under excell and the codes it has in it are p0171(bank 1 lean) and p0300(random misfire)i hav… read more
Dan
Dan
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Gas pedal..boggs..i take my foot off of the pedal it idles, sounds
I have a 2003 1500hd 6.0L. When i press the gas pedal i dont get any power it boggs down, when i take my foot off of the pedal it idles, sounds like a vaporlock. i got the following codes from OEM bra… read more
Dan
Dan
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Associate Degree
2001 Chevy: 2WD..4.3L V6 AUTO with 110,000 miles on it..stall
I have a 2001 Chevy Blaze 2WD/4-Door. 4.3L V6 AUTO with 110,000 miles on it. It is stalling or acting like it will stall at idle. It will give codes P0300 and P0171 sometimes. It will idle rough aroun… read more
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