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P0300 random misfire i cant figure it out. Thank u. 200,400
P0300 random misfire i cant figure it out. Thank u … read more
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I have an 08 chevy cobalt 2.2 Im running multiple codes.
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Roy
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Chevrolet Aveo5 LS: OK, I have 5 codes, P0053, P0420, P0326,
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Chevy S-10: I have a 2003 Chevy S-10 4.3 4WD. Im popping a
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GM Tech (Cam)
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2005 Chevy: 4.3L (work truck)..dtc..79k mi..throttle body..driveway
Hi need help on a 2005 Chevy Silverado 4.3L (work truck) . It came in with the following DTC's P053 , P0300 , P0430 , & P0756 it has 79K mi. on it . The customers complaint was : loss of power & poppi… read more
JOHN aka Eauto
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chevy tahoe: fuel filter..check fuel pressure an is about 45 psi
02 chevy tahoe with a ramdom misfire i replaced spark plugs mass air flow fuel filter i check fuel pressure an is about 45 psi i keep on getting a coded for a bad mass air flow and the ramdom misfire… read more
Tim's Auto Repair
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1998 Chevrolet Blazer: misfires..egr valve..check engine light comes
I have a 1998 Chevrolet Blazer with 5.7 engine. the engine misfires randomly unless i unplug the egr valve. with the egr vulve unplugged it runs perfect but the check engine light comes on with the co… read more
autodoc_2000
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1996 Blazer: fuel pressure..V6..35 to 40 mph and engine will stall
What should the fuel pressure be for 1996 Blazer V6? Blazer looses power at 35 to 40 MPH and engine will stall to death on deacceleration. Thanks Levon G… read more
Jerry Newton
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2003 Tahoe: three codes showing..lean..senor..mass air flow sensor
I have three codes showing up on my 2003 Tahoe. The number 1 and 2 banks are lean and it says my mass air flow senor has a problem. I replace the mass air flow sensor but that didn't help. Should I st… read more
Danny
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2003 chevy: idling..rough..you have a vacuum line loose..running hot
2003 chevy silverado 5.3liter is making a chirping noise and motor is idling very rough like when you have a vacuum line loose. It is not running hot. When I rev it up in while in sitting still it chi… read more
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2000 Blazer: v6..New Plugs, Wires, Rotor and Cap..Ignition Coil
2000 Blazer V6 Vortec P0300 has been registering for a while now. New Plugs, Wires, Rotor and Cap as of last summer. New MAF Sensor and Ignition Coil since last week. What else could be causing the pr… read more
Gary
Gary
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2003 Chevy Silverado 1500HD with the 6.0L engine. getting a
2003 Chevy Silverado 1500HD with the 6.0L engine. getting a Reduced Power Mode along with DTCs P0101, P0171, P0174, P0300 P1516, P1518, P2108 and P0300 P. Engine is missing when running.… read more
Ironmike
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P300: 96 chev pu 4.3L code..rotor..light goes..engine runs..runs great
on 96 chev pu 4.3L code P0300 random misfire, have changed spark plugs, wires, dist cap & rotor, removed light and it comes back within 24 hrs with same P0300, from time to time the light goes off and… read more
Amedee
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96 chevy s10: 4.3L V6 SFI p300 code came..distributor..rotor
I have a 96 chevy s10 pick-up with 4.3L V6 SFI P0300 code came up as "Random Misfire" I replaced all the plugs and wires, and the distributor and rotor button. runs better but still have the problem. … read more
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2000 Blazer: misfires..ive changed plugs, wires, cap..coil..throttle
2000 Blazer, 5-speed - SES light and code 0300 "multiple random misfires". I've changed plugs, wires, cap, and coil. Surges & stumbles at ~2000rpm steady speed - very little throttle. It' getting wors… read more
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1998 chevy: 4.3l v6 its giving..intake manifold..o2 sensors..egr valve
Hi all, I have a 1998 chevy c1500 with a 4.3l v6 its giving a p0300 random engine misfire code, I replaced the fuel pump, the intake manifold gaskets (leaking coolant), both O2 sensors,and cleaned the… read more
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2003 impala code p300. change plugs and wires. but same ...
2003 impala code p300. change plugs and wires. but same problem! At about 30 mile an hour it just hang at 30 until I let the gas go and it changes gears and runs ok. and if I run it slow. it runs ok n… read more
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Meet the Experts:

GM Tech (Cam)

GM Tech (Cam)

Chevy Technician

15,756 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

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Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,884 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

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ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

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A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

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Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,836 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

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