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Vehicle arrived with codes p0300, p0305, p0307, p0308, p171,
Vehicle arrived with codes p0300, p0305, p0307, p0308, p171, and p174. Engine runs rough at idle and lack of power. runs smooth when held at about 1500rpms. Have constant misfires showing on scanner o… read more
Andrew Martin
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2003 chevy Tahoe 4.8 L missing , tuned up spark plugs and wires. still missing changed fuel pump still missing changed tps, and mass air flow sensor, still missing changed 2 coil packs still missing ,… read more
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Gary
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2000 Silverado w/ 4.3 and manual trans, runs rough cold but
2000 Silverado w/ 4.3 and manual trans, runs rough cold but then smooths out once warmed up, but still has a random miss at a round 2000 +/- rpm on the highway. PO 300 and PO440 codes, Has new AC Delc… read more
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would my throttle body or throttle body positioning sensor cause my motor to not run smoothly and misfire when its warm in kind of lose power I've changed spark plugs coil packs plug wires o2 sensors … read more
karrs2fix
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Code P0300 and P03300B on my Chevy. How to fix it?
My truck still shows that p0300 code. I put a new map sensor in, new plugs, and still shows misfires on #1, #5, #6, #8 cylinders? And when you unplug map sensor it doesn't show any miss fires at any r… read more
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retreiving 3 dtcs for my 2500 silverado (2003)...po171..po174
i am retreiving 3 dtc's for my 2500 silverado (2003). po101- po171 and po174. what parts do i need?… read more
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S10: code for the Secondary Injector (p0410, I think)..real bad miss
I have an 02 S10 with 231000 miles. Last week I saw a code for the Secondary Injector (P0410, I think). Vehicle had a real bad miss when it was cold and wet outside. Took vehicle to shop, cleaned out … read more
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2002 chevy: cause a random misfire..trouble codes..p0174 p0171
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hauto
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Bachelor's Degree
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chevy cobalt ls: check engine light..te dealership..light came back
i have a chevy cobalt ls 2.2. i have the check engine light on and the code came up p0112 and po411. te dealership replaced the secondary air vavle and the light came back on for the po112. they erase… read more
Nate
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P300: 2002 silverado 4wd rough idles only when it is..Autozone
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pickup: 06..4x4..that started running rough..Check engine light
I have a '06 5.3 lt chevy 4x4 pickup that started running rough and won't idle. Check engine light started flashing. Checked codes and found 3 codes. Two 101 ( maf-vaf a ckt range/perf ) and one 300 (… read more
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2002 Chevy: warms..it runs fine..of the 4 O-2 sensors on the exhaust
I have a 2002 Chevy 1500 with a 5.3 that has 200k miles, on cold mornings the motor has a very rough idle until it warms up. If I disconect the MAS on the air intake tube it runs fine, Please note I h… read more
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2004 Suburban: PO171..the fuel pump, air filter..fuel injection
2004 Suburban We got the diagnostic codes PO174, PO171, PO300. Is the proper procedure for these codes replacement of the fuel pump, air filter, and fuel injection service?… read more
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2003 Chevy Tahoe: 2wd..map sensor and the mass air flow sensor
I have a 2003 Chevy Tahoe 5.3 2wd. I am throwing codes lean on bank one and lean on bank two. I replaced the map sensor and the mass air flow sensor. I have also replaced the fuel pump. It idles rough… read more
GM Tech (Cam)
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1996 Camaro: 4500 rpms..you accelerate, it just misses and loses power
1996 Camaro, 3.8, when you bring it up slowly, ( or in park) you can go to 4500 RPMs and it runs and sounds great. However, under power. when you accelerate, it just misses and loses power. Have chang… read more
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chevy truck: engine light came..i drove..needs replacing..my exhaust
I have an 04 chevy truck the engine light came on and the code was mis fire the dealer cleared the code and put fuel conditioner in it said a dirty injecter as i drove off the light came on again now … read more
camarochris
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2003 chevy: 4.8l..started running rough..check eng..light came on
I have a 2003 chevy silverado w/a 4.8l eng. in it. The truck suddenly started running rough and the check eng. light came on. There were codes for a multi cyl misfire, o2 sensor bank 2 , sensor 2, and… read more
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1999 CHEVY: MANIFOLD..TIMING, THE fuel..CAM SENSOR..DISTRIBUTOR
1999 CHEVY C3500 5.7L - REPLACED THE HEAD GASKETS AND THE MANIFOLD GASKETS....NOW THE TRUCK WILL NOT STAY RUNNING. CHECKED THE TIMING, THE FUEL PRESSURE...CHANGED THE RELAY FOR FUEL, CHANGED THE CAM S… read more
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