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I am having a problem with my 99 tahoe. We changed the fuel
when i start the tahoe it is very rough and sputters i press the gas and it gets worse… read more
AMEDEE
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Vocational, Technical or Trade Scho
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My 07 Suburban has a P0300 diagnostic code and I have
My 07 Suburban has a P0300 diagnostic code and I have replaced the coils but I keep getting the code … read more
roy
roy
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Chevrolet Tahoe 4x4: I have a 2003 Tahoe with a 5.3 flex fuel
I have a 2003 Tahoe with a 5.3 flex fuel engine. For 2.5 years now it INTERMITTENTLY idles and runs rough up to about 1500 rpm, and throws a p0300 code. I've done the usual and expected; changed all p… read more
Gary
Gary
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Chevrolet Suburban 1500 LT: I have a 2004 Chevy Suburban 5.7L
I have a 2004 Chevy Suburban 5.7L with 178K miles. The problem that I am experiencing is the vehicle will die without warning and after it sits for a while, it will start back up. At first it would do… read more
Tim's Auto Repair
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mechanic
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DROVE CAR HOME RAN BAD ,HADE 6 CODES P0101,P0171..P0174
AMEDDE FINNALY GOT CAR SMOGGED ,DROVE CAR HOME RAN BAD ,HADE 6 CODES P0101,P0171,P0172, P0174, P0175, P0300.CLEARED CODES .DROVE TO WORK 5 DAYS LATER 50 DEGREES TEMP ,RAN PERFECT NO CODES . DROVE AFTE… read more
AMEDEE
AMEDEE
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Vocational, Technical or Trade Scho
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1999 Chevy Tahoe: p300..Misfires..running rough..idle and hesitates
Hello, I have a 1999 Chevy Tahoe with a 5.7 Vortex, it is coding P0300, Random Multiple Misfires, no other codes. It is running rough on idle and hesitates really bad. I can hear slight backfires at s… read more
GM Tech (Cam)
GM Tech (Cam)
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Vocational, Technical or Trade Scho
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Tahoe: mass air flow..no change, it still idles and drives rough
Tim, concerning the 96' Tahoe, after disconnecting the mass air flow there was no change, it still idles and drives rough.… read more
GM Tech (Cam)
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Vocational, Technical or Trade Scho
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2010 tahoe: i just installed E3 spark plugs..ran rough
i just installed E3 spark plugs in my 2010 tahoe 5.3 motor. the plugs where the only change that i made. i turned the car on and it ran rough. the DIC gave me service stabilitrack and service traction… read more
heavy_chevy_396
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03 chevy 3500 silverado 6.0 engine fuel pressure problem. Truck
03 chevy 3500 silverado 6.0 engine fuel pressure problem. Truck has P0300 multable cylinder misfire and hard start/rough idle. Has 50 psi fuel pressure (normal 55-62 psi?)at idle new fuel filter, new … read more
Michael Moore
Michael Moore
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1992 s10: sputtering..alternator..fuel pressure regulator..fuel filter
problem with 1992 s10 tahoe sputtering, wants to shut off, battery is good, alternator is good, they told it could be the fuel pump regulator,or fuel pressure regulator, fuel pump, fuel filter... wher… read more
KMP1171
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2003 Chevrolet: idles..my fuel filter yesterday and parked it..warms
: Gary from Kansas City,MO. When my 2003 Chevrolet Avalanche is parked inside overnight and I start it in the morning it sounds and runs okay but if it sets outside in the cold overnight it sounds and… read more
Michael Moore
Michael Moore
Team leader, bumper to bumper tech.
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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
John
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1997 chevy tahoe: 8 cylinder,, 5.3 liter engine..engine light stays
I have a 1997 chevy tahoe, 8 cylinder,, 5.3 liter engine & the engine light stays on so I can't pass the N.H. emissions test which I failed with light on. When put on a diagnostic machine at the deale… read more
Cory
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Vocational, Technical or Trade Scho
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2003 chevy tahoe: water pump..2700 rpm with spark knock..ran fine
my 2003 chevy tahoe with 140000 miles went in the shop for a water pump, got it back truck would run rough over 2700 rpm with spark knock when under acceleration. Took it back and they said it needed … read more
zzdaryl
zzdaryl
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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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Vocational, Technical or Trade Scho
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2005 impala: 000 miles..check engine light..engine light came on gives
2005 impala with 3.4 65,000 miles : it wont start unless throtle fully depressed,idles rough after starting,check engine light came on gives code p0300 = random missfire, just noticed water dripping f… read more
GM Tech (Cam)
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2003 Tahoe: stalled..the check engine light came..running fine
I have a 2003 Tahoe 66,000 miles- ran perfectly, filled up with gas and emission light came on and now runs rought at idle and stalled on me immediately after filling up, checked and recapped gas cap … read more
GM Tech (Cam)
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Vocational, Technical or Trade Scho
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1999 Chevy Tahoe: 2WD..000 miles..service engine light..a hesitation
I have a 2WD 1999 Chevy Tahoe with 70,000 miles. The service engine light recently came on and at same time I noticed a hesitation/stumble with the engine while driving. The code was a P0300 - multipl… read more
BOBBYSS
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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

Chevy Technician

9,642 satisfied customers

15 years GM master tech

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

Chevrolet Technician

7,092 satisfied customers

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

2,953 satisfied customers

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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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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