P0300 chevy tahoe 2007

2007 tahoe misfire on cylinder #5 P0306 missfire #6 98 chevy tahoe 2007 chevy tahoe misfire Tahoe misfire forum 6th edited january pm last 2010. Repair Engine; ... Chevy image0 p0304Need help misfire after replacing lifter 2007 chevy tahoe misfire07 tahoe 5.3 p0300 misfire counts 1-342 3-259 5-282 7-317 8-1.

INFORMATION. Subject: Diagnostic Tip for Misfire, Chirp, Squeak, Squeal or Tick Noise, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, …in this video I will share with you how to pinpoint one of the causes of a P0300 DTC on a Chevy Truck...I suggest starting by inspecting or replacing the spark plugs, if the plugs are OK the next step is to check the injectors. Even is your Tahoe is running OK, at some point the engine may have a cylinder misfire, but it's not bad enough for you to feel it. P0300 CHEVROLET - Cylinder Misfire Detected Random Cylinders.Replacing speakers in a vehicle is one of the simplest and most cost-effective ways of improving the sound in your car. The Chevrolet Colorado is a good candidate for speaker repla...why the loss of power and po300 code? had code p0300 random miss. changed lower & upper manifold gaskets, plugs - Chevrolet 1998 Tahoe question. Search Fixya. Browse Categories Answer Questions . 1998 Chevrolet Tahoe; Chevrolet Tahoe Car and Truck ... 2007 Chevrolet Tahoe. Tahoe won't start. 2000 Chevrolet Tahoe. Chevy tahoe shuts off when driving.QUIK FIXES. 961 subscribers. Subscribed. 55. 21K views 2 years ago. truck came in with a p0300 random misfire, scanned some place else, with a global scanner ,when scanner …U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Chevy Tahoe). This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a …

2007 chevy suburban p0352, p0354, p0356, p0358 is it possible for all these coils to be bad - Answered by a verified Chevy Mechanic ... 2007 chevy tahoe: drove 2 miles after sitting for a week and started misfiring . Dash lit up including stabilitrak warning. Codes are P0300 random multiiple misfire, P0154 O2 sensor no activity bank 2 ...Mileage: 176,665 miles MPG: 14 city / 20 hwy Color: White Body Style: SUV Engine: 8 Cyl 5.3 L Transmission: Automatic. Description: Used 2007 Chevrolet Tahoe LS with Rear-Wheel Drive, Roof Rack, Keyless Entry, Running Boards, Alloy Wheels, Third Row Seating, Satellite Radio, and Side Airbags. More.P0300 Random Multi misfire Intermittent ... 96-chevy-tahoe-fuel-pump-pressure-testing.pdf . Aug 7, 2013 #3 OP . OP. N. newbie78 Full Access Member. Joined Jul 23, 2013Townhouse in Lomé. 4.77 (31) Chez Max. House located in a secure area, not far from the Catholic Church of Avepozo 10 minutes from the autonomous port of Lomé. That's a 30-minute drive from Lomé airport. Air conditioned and ventilated bedrooms. Integrated showers and toilets for each room. Terrace and Garage.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 slow speeds. Truck has 165,000 miles. What I have done: New Injectors (from old poppets to new MFI), including fuel pressure regulator.

Mar 26, 2024 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persists more tests need to be done to diagnose the problem, see 'Possible Causes'. 2008 Tahoe P0300, Rough Idle After Work. davidkramer; Nov 8, 2023; Engine & Drivetrain; 2. Replies 16 Views 2K. Nov 21, 2023. davidkramer. D. My Experience so far with 2007 Yukon. Idle issues after cam swap, P0300, P0420, tuning. ouch_my_L4L5; May 26, 2023; Performance; 2. Replies 16 Views 6K. Aug 22, 2023. ouch_my_L4L5. Share: Facebook X ...The factory stereo installed in the Chevy Colorado only has an AM/FM stereo tuner and a CD player. Many aftermarket stereos, on the other hand, have auxiliary inputs, iPod control ...P0300 Random Multi misfire Intermittent I notice at times i have to hold the starter longer for it to kick over and some times it cranks right over in a split second. Most of the time it fires right up first start of the day and on ocassion. ... 96-chevy-tahoe-fuel-pump-pressure-testing.pdf . Aug 7, 2013 #3 OP . OP. N. newbie78 Full Access ...P0171, P0174, P0300. Hello everyone, first time on this forum but my trucks got me stumped. Im trying to get my truck to pass emissions, but I've got DTCs and that's an automatic fail where I live. The previous owner sold it because he couldn't get it to pass emissions either, so far I've changed the intake manifold gaskets and MAF sensor, the ...

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P0300 is a generic OBDII code that can occur with the Chevy Cobalt. This code indicates that your car's engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, the ...Start and idle the engine for at least 2 minutes. DTC P1400 should run and pass. Circuit/System Testing. • Inspect the air intake system for the following: - If any other DTCs are set, diagnose them first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle . - Modified, damaged, or restricted.P1000 - P1099 (Fuel and air metering and auxiliary emission control) P1011. Intake camshaft position (CMP) actuator, bank 1 -incorrect park position. Engine oil level/pressure, mechanical fault. P1012. Exhaust camshaft position (CMP) actuator, bank 1-incorrect park position. Engine oil level/pressure, mechanical fault. P1013.The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persists more tests needs to be done to diagnose problem, see "Possible Causes".

To diagnose and resolve the P0300 code, you can follow these steps: Check for other codes: The P0300 code often accompanies specific cylinder misfire codes (P0301, P0302, P0303, etc.). If you find any additional codes, they can help narrow down the issue. Inspect ignition components: Examine the spark plugs, ignition coils, and ignition wires ...P219B Symptoms: Chevy Tahoe. Often, the only sign that your Tahoe has P219B is the check engine light. ... You’ll likely see either P0300 or P030X, where the X represents the cylinder that is misfiring. Example: P0301 is a misfire in the first cylinder. ... I have a 2007 h3 hummer base model. Had transmission rebuilt (Pro).My problem is that ... Chevy Mechanic: kyle swart. Couple different things to check here, several codes. The p0171, p0174 and p0175 are relating to you mass air flow sensor. The p0121 to the throttle body. I would recommend cleaning the throttle body, check the air filter, replace if necessary, and also clean the maf sensor. They sell maf cleaner at most parts stores ... It indicates that your Chevy Tahoe is running lean on the bank two side of the engine. P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. ... You may also get P0300 or P030X (X being the missing cylinder, which should be an even number). ... I have a 2007 h3 hummer base model. Had transmission ...The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks; intake gaskets are a common cause of multi …2007 Chevy Tahoe 5.3L P0300 - YouTube. Check Details. 2007 Chevrolet Tahoe - 2007 Tahoe code P0455. Check Details. 2010 Chevy Tahoe LT please help p0449 - Chevrolet Forum - Chevy. Check Details. Chevy Tahoe P0300 OBDII Code Diagnosis | Drivetrain Resource. Check Details.Jan 30, 2020 · P0307 is a fairly common trouble code with the Chevy Tahoe. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 7 cylinders. So, it’s mostly a code for V8 engines. P0307 is typically caused by bad spark plugs, plug ... The P0300 code specifically applies to the Chevrolet Silverado and refers to engine misfires. When this code is triggered, it indicates that the engine has detected random misfires in multiple cylinders. These misfires can result in poor engine performance, reduced fuel efficiency, and potential damage to other engine components.Feb 15, 2021 · I have a 07 Tahoe 5.3l that recently had issues with oil pressure, stabilitrak, low oil pressure shut off engine errors, p0621, p0300, and p0304 codes. I started replacing the MAF, TB, and Spark plugs & wires. After the spark plug and wires I developed a knock couple days later. I since then... Sep 5, 2021 ... Misfire Diagnosis & Repair Coil Problems P0300 | 2000-2006 Chevy GMC Truck, Suburban, Tahoe, Yukon. 117K views · 2 years ago ...more. Axle's ...

P0300 is a generic OBDII code that can occur with the Chevy Trailblazer. This code indicates that your vehicle's engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific ...

I just picked up an 02 Tahoe 5.3. Previous owner tried to fix the issue but failed. The truck is running rich and only has a P0300 code. Its stumbles at start up and gradually gets worse and cuts off. Cats have been changed, coils, Intake Gaskets, O2 Sensors, Fuel Pressure Reg. ,Map Sensor. Fuel Pressure is around 55 psi.1. Check For Other Codes. Additional codes can offer critical info about your Silverado's condition. Rarely does P0175 Chevy show up alone (if it does look for a vacuum leak, bad O2 sensor, or dirty MAF).. 2. Spot The Weird Odor. While the engine operates, a strong gas smell could be coming from a leaky injector or a fault with fuel regulation.2007 chevy colorado P0305 P0300. Aloha I've been having problems with my 2007 Chevy Colorado 3.7 I5. Here's the rundown the truck had a really rough idle and sounded like crap had really bad vibration unless the rpms were high then it would smooth out and would die if I left it idling long enough. I cleaned the throttle body, changed the MAF ...GM suburban: 2007 chevy suburban 5.3problem is engine misfire…. problem is engine misfire P0300 only code. misfire on cylinder 6. I just removed the intake to clean the oil pressure sensor screen. reassembled and hooked everything up. engine ran good for a day and now cyl 6 misfire. coil and injector all look to be hooked up ok.January 30, 2023 by Jason. P0300 is a generic OBDII code that can occur with the Chevy Colorado. This code indicates that your truck’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring).P0352, p0354, p0352, p0354, p0356, p0358 all comes back shortly after reset ,I suspect the PCM … read more. 2009 Chevy suburban LT 5.3 engine. The engine runs rough, 2009 Chevy suburban LT 5.3 engine. The engine runs rough, ABS and engine lights are on. Replaced spark plug coils with no change.5.3L 187,000 miles, it's throwing P0300 and P0174. Bank 2 would be passenger side? My thought was to check the spark plugs/coils, am I on the right path? Or... Forums. New posts Search forums. ... 2007 - 2014 Tahoe/Yukon/Escalade Models. Engine & Drivetrain . 2008 tahoe K1500. Throwing P0300(random misfire) and P0174 (lean bank 2). ...

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An engine code P0332 means that knock sensor #2 is sending an output voltage to the PCM that is lower than the manufacturer-specified range. Without proper readings from the knock sensor, the PCM cannot accurately alter ignition timing to prevent engine knocking. P0332 is a generic trouble codethat applies to a variety of makes and models.Get ratings and reviews for the top 12 foundation companies in Chevy Chase, MD. Helping you find the best foundation companies for the job. Expert Advice On Improving Your Home All...2008 Chevrolet Tahoe 5.3 I have a p0300 and with my scanner it says I have a misfire on cylinder 6 I did a compression check and it has 125 all other cylinders on that side has 160 . Answered in 1 minute by: Chevy Mechanic: Daniel Chaidez. Daniel Chaidez. Category: Chevy. Satisfied Customers: 14,558. Experience: Technician at Global Auto Repair.I have a 2007 Chevy Tahoe with 5.3. Had a collapsed lifter on cylinder 1, replaced all lifters, and VLOM. Started engine and misfiring on 1 still. ... P0300 code, random misfire. 120k miles. 72 psi compression on cyl 3. No leak down test done. Mechanic said burned rings, burned or stuck valve, or flat cam lobes. Oil looks clean, not milky.Labor: 1.0. The cost to diagnose the P0200 Chevrolet code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.I suggest starting by inspecting or replacing the spark plugs, if the plugs are OK the next step is to check the injectors. Even is your Tahoe is running OK, at some point the engine may have a cylinder misfire, but it's not bad enough for you to feel it. P0300 CHEVROLET - Cylinder Misfire Detected Random Cylinders.Labor: 1.0. The cost to diagnose the P0200 Chevrolet code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The check engine light (CEL) will be on. One or more misfire codes (P0300-P0308) will be stored in your pickup's PCM memory. P0300 Random Cylinder Misfire. P0301 Cylinder #1 Misfire. P0302 Cylinder #2 Misfire. P0303 Cylinder #3 Misfire. P0304 Cylinder #4 Misfire. P0305 Cylinder #5 Misfire.2007 chevrolet tahoe lt. Tahoe p0300 p0172 2000 p0175Chevy armslist tahoe 2007 tahoe p04552007 chevrolet tahoe. Tahoe suburban ltz silverado vehiculos chevroletclub deportivos avalanche horquilla egmcartech mpg unveilTahoe 4wd lt1 P0496 chevy tahoe: evaporative emission system high purge flowTahoe 2007 chevrolet cargurus ltz 2wd. ... ….

Misfire P0300 above 2000 RPM. I'm getting a consisten misfire above 2000 RPM on four cylinders. Looks like 1 5 6 8, worst offender is number 6. It doesn't misfire under 2k, consistently reproducible above. So fairly certain not a ignition issue. Fuel pressure is a constant good PSI, in range.2004 silverado 5.3 random misfire p0300 code. Need help ,changed plugs and wires, intake gasket vacumn lines , pulled compression on all cylinders ( 125 to 138) random miss on cylinder 6 at idle than runs fine above 2000 rpm. You could have a ignition coil that is faulty. Try moving that number 6 coil to the number 2 coil position to see if the ...P0300. Checked compression #2 -150psi (running) ** When vehicle off compression is 90psi other cylinders at 120psi. Replaced spark plugs. Replaced Wires. #2 Cylinder injector resistance low compared to other cylinders. Swapped injectors to see if issue disappears and nothing changed.Tech Notes. Condition: A vehicle may have a concern about a DTC P050D setting along with a P0300 after a cold startup. White smoke and/or coolant odor may come from the exhaust for an extended period of time at a cold start as well. It may also Run rough when warm, with a slight knock, no codes set. Cause: Coolant getting into the cylinders.2005 chevy corvet 6.0 ls1 car has p0300 found broken vlave spring replace with complet top end done still p0300 ... 2007 chevy vin u 6.0 has misfire on #7 & 2 at idle only above 1000 rpm goes away. Have traded plugs/ciol/injectors also had valves done on motor 105,ooo on motor. ... 1999 Chevy Tahoe 5.7 - OBD:P0305 Replaced cap, rotor, plugs and ...Failing oxygen sensor (s) Bad fuel injector or more than one. Stuck exhaust valve. Bad catalytic converter. EGR valve or valve passage clogging. Bad camshaft position sensor. Bad PCM or ECM. The ...I'm at a loss. I have a 2011 Tahoe z71 that we purchased a month ago. Truck has 165k miles. ... 2007 - 2014 Tahoe/Yukon/Escalade Models. Engine & Drivetrain . P0300, Service stabilitrack and rough idle. ... 2008 Tahoe P0300, Rough Idle After Work. davidkramer; Nov 8, 2023; Engine & Drivetrain; 2. Replies 16 Views 2K. Nov 21, 2023. P0300 chevy tahoe 2007, Here we look at the potential causes of the code P0300 (Random Cylinder Misfire) and Fix the problem on my 2002 Chevy Tahoe, Feb 19, 2020 ... Comments7 · 2004 CHEVY SUBURBAN 5.3L P0300 DIAG & FIX · 07 Tahoe Misfire Cylinder 7 | P0307 | Collapsed Lifter @CrazedPerformanceRepair., P0308 is a fairly common trouble code with the Chevy Tahoe. It’s and OBD2 code and means that a misfire has been detected in the 8th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 8 cylinders. So, it’s mostly a code for V8+ engines. P0308 is typically caused by bad spark plugs, plug ..., The P0700 code in your Chevy Tahoe is a generic OBD-II code that indicates a malfunction within the transmission control system. This code is not specific to any particular issue but rather points to a general fault in the system. Additionally, the P0700 code usually appears in conjunction with other transmission-related codes or shift solenoid ..., Thank you for tuning in to Super Mario Diagnostics!We've got a diagnosis of a random misfire, that may throw off some. It can be easy to be led by the sympto..., P0121 definition: Throttle Position Sensor (TPS) "A" Circuit Range Performance Problem. Issue Severity: HIGH - Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid being stranded. Diagnosis: It is important to complete the entire diagnostic process when diagnosing the P0121 code., 1. I've had this car for 4 years no major issues. It sat for a week, after a couple of miles stabilitrak lit up and the car started missing. Turned around to limp home and it straightened out for a mile then started missing again with raw gas making it to the muffler and igniting. I pulled these codes., Problems: -Code P0306 (Misfire #6 Cylinder) -Rough Idle. -Flashing Check engine light. -Service Stabilitrak/Traction Control Messages. -Hard gear shift from 1-2,2-3 also on downshift. -Very high oil Consumption (3 quarts low) Tried: -New plugs,wires,coils., 2007 - 2014 Tahoe/Yukon/Escalade Models. Engine & Drivetrain . 2007 Tahoe sudden P0300 P0154 P0352 P0354 P0356 P0358 ... 2007 Tahoe sudden P0300 P0154 P0352 P0354 P0356 P0358. Thread starter Spin; Start date May 23, 2022; Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and ..., The Disgruntled Mechanic Fixes a code P0300 on four wheel drive Chevy LS 2500 HD Chevy pick up truck with the 6 Liter engine with a Cylinder 1 & 6 misfire ..., Check engine light and got a p0300 code in a 2007 tahoe. 2007 Chevrolet Tahoe; Open Questions: 0 answers. I need a service manual for free of a new process 246 cm transfer case for a 1999 chevy tahoe. Read full answer. Be the first to answer Mar 24, 2017 • 1999 Chevrolet Tahoe., So i've been having this issue since december of last year with my 6.0 01 Denali. Code is p0300. misfires happen on cylinder 5 mostly but 2 and 4 sometimes. i replaced spark plugs, spark plugs wires, PCV valve, EGR , Coil packs ( just for the ones missing) sea-foamed, checked compression and i..., I could use some help from the group. I’m getting the P0300 misfire code with a rough idle and seems to be dumping fuel in the right bank. Ive done a significant amount of work with no results. - pulled heads and replaced AFM lifters and trays. Old lifters showed no damage. New valve seals and..., In this video we discover common causes for the codes P0300 and P0200 and learn a lesson about being more methodical in diagnosing these issues before cleari..., Wondering is any one can help me. My chevy Tahoe 2003 5.3 flex fuel z vin is throwing p0300 code. Here is what I have done so far. Cleaned maf with maf cleaner, replaced plugs and wires with oem parts, checked pcv valve is working, checked for intake leaks with carb cleaner no stall, removed fuel injectors on bank 1 side and …, Because, GM V8 engines are very prone, to a rough idle and engine misfire when cold. The check engine light may also come on, with codes P0300, P0171 and PO174. But, as the engine warms up, the engine misfire or rough idle tends to go away, which seems confusing. Now, lets get armed with the knowledge of what can cause, a engine misfire …, Even slight variations in the air/fuel mixture will cause the converter temperature to rise significantly. The "Catalytic Converter Efficiency" Diagnostic Trouble Codes (DTCs) P0420 and P0430, are among the top 10 DTCs technicians face. And while the description might imply a failed converter, odds are the ultimate fault lies somewhere else., YES! Your description is EXACTLY what my Tahoe has been doing the past 2 months. Whenever I sit in idle for too long (@ the bank, line at McDs etc) the check engine comes on sometime that day. I have 95,400 miles on my 2015 LTZ and and extended warranty. Taking the kiddos to school/daycare and then to the office., P069E code indicates that the FPCM has identified an issue in the fuel system and is requesting the PCM turn on the check engine light. The FPCM supplies and regulates the voltage that goes to the fuel pump and the fuel pump relay. It can be a stand-alone module or a computer integrated into the PCM. Usually, the FPCM is a stand …, 2002 Yukon XL, 5.3 flex fuel, trouble code p0300, sometimes another p03xx. Replaced stuff: Plugs, wires, coils, injectors, maf, both front o2 sensors. Symptom: Rough idle, lack of power, really bad mpg. When I replaced the maf today, I forgot to put the connector back on and started to drive around until it got into closed loop (autoXray ez6000)., All headrests in the Chevrolet Tahoe are removable, no matter what model-year you have. A common complaint is the second or third-row seating "blind spot" caused by the headrests. ..., 2003 chevy Tahoe 5.3 4wd. Codes p0171, p0174, p0300. Plugs wires and fuel filter just done. 46lbs of fuel pressure at - Answered by a verified Chevy Mechanic, The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persists more tests need to be done to diagnose the problem, see 'Possible …, A prevalent issue with the Chevy Tahoe is the P0446 code. This code corresponds to a specific number obtained when connecting your Tahoe to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Table of Contents Definition Symptoms Causes Diagnosis How to Fix P0446 Definition P0446 is a standard OBDII trouble code,, P069E code indicates that the FPCM has identified an issue in the fuel system and is requesting the PCM turn on the check engine light. The FPCM supplies and regulates the voltage that goes to the fuel pump and the fuel pump relay. It can be a stand-alone module or a computer integrated into the PCM. Usually, the FPCM is a stand alone module., 2008 Tahoe P0300, Rough Idle After Work. davidkramer; Nov 8, 2023; Engine & Drivetrain; 2. Replies 16 Views 2K. Nov 21, 2023. davidkramer. D. Is my timing causing me a P0300 code. Fernando Escobar; Feb 6, 2024; ... 2007 - 2014 Tahoe/Yukon/Escalade Models. Engine & Drivetrain. Tahoe Yukon Forum Contact us;, 2008 Chevy Tahoe 177000 miles. P0300 (Random misfire), rough idle and sluggish acceleration. Cylinders 2, 5 and 7 are - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... 2007 CHEVY 2500 EXPRESS VAN 6.0L WITH 47000 MILES. PROBLEM IS A P0300, WHEN I DO A LIVE MISFIRE SCAN IT SHOWS ..., What the P0307 code means. When the P0307 diagnostic trouble code is stored by the Powertrain Control Module (PCM), it is an indication that a misfire has been detected in cylinder 7. More specifically, the PCM detects an increase or decrease in crankshaft revolutions per minute (RPM) that exceeds 2%. A quick background into this system:, May 19, 2018 · 5 years 11 months ago #20876. 2007 Chevrolet Tahoe 5.3 Flex Fuel P0300 was created by TheMechanic512. Working on a 2007 Chevy Tahoe with a 5.3L Flex Motor code P0300 but not 1000% sure whats causing the misfire. I can feel the miss no doubt about it misfire PID at idle shows miss on cyl. 1 and slightly on 8 tested for the following, Both ... , A "P0300—Random Misfire" code can make your life miserable. Codes can go from one cylinder to another without a clear pattern. And they may appear for one or more different reasons: Bad knock sensor. Bad spark plugs. Faulty ignition coil or pack. Leaking valves., The P0172 code means that more gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0172 is set in along with the P0175 code, it is highly likely that the problem is caused by leaking fuel injectors. If there are no leaking fuel injectors, the next step is to replace the air filter and clean the Mass Air Flow (MAF ..., 2007 chevy colorado P0305 P0300. Aloha I've been having problems with my 2007 Chevy Colorado 3.7 I5. Here's the rundown the truck had a really rough idle and sounded like crap had really bad vibration unless the rpms were high then it would smooth out and would die if I left it idling long enough. I cleaned the throttle body, changed the MAF ...,