2017 suburban rough idle. 2L seems to be getting worseit almost feels like a miss. 3 seems to get a slight rough idle and it drops just below 500 rpm when stopped. I have a 2015 GMC 3500HD 6. If your Suburban has this problem, many issues can cause it. 3L has been giving a rough idle on cold start only, no drivability issues. It can be very jarring when your Chevy Suburban shakes when idle. . It idles bad and it revs itself up until the enine gets warm. Should I Visit An Experienced Mechanic? RPM going up and down at idle can be caused by various factors, some serious and others not as much. Possible Cause Check Out Diagnose and Fix Rough Car Idle – Main Causes For Shaking / Vibrating While at a Stop: If you have tried everything, but your RPM is still going up and down, it’s time to have your engine tuned. With A/C On, perform several short heavy launch events from stop to stop to bring the temperatures back up while attempting to re-create the rough idle vibration in Drive with Pico sensor placed on inboard seat track; while the Discover common direct injection engine problems. Finally got a cylinder 7 misfire code … replaced the spark plug and coil and has been fine since. Fuel regulator had good vacuum and has no fuel leaking. For several days we have searched and read countless sites trying to find what was causing the rough idle, stabilitrak warning, and the hard shift from 1st to 2nd Anyway of increasing the idle to slightly above the factory 500 rpm without a tuner. Rough idle, check engine would come on and off, and could not get it sorted. I have a 99 1500 with 5. I'm gonna be taking it in for some horrible 2005 Yukon XL 1500 4x4 Reply Quote Like H hanks2013 Discussion starter 6 posts · Joined 2014 #5 ·Apr 17, 2014 2013 Suburban Rough Idle Pikey said: Some 2016 and 2017 model year Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, GMC Yukon, and GMC Yukon XL vehicles, equipped with a 5. to/3X366kB Map Sensor: https://amzn. 500 rpms. Oil being used is On my 2012 Avalanche with 5. 3L. It's tough to describe - somewhere between the feeling of a trashed engine mount, a low idle, and an unbalanced engine. Repeatable at all engine Reasons for a Rough Idle or High RPM If you are experiencing a rough idle or your RPM is running high when idling, then there are a variety of reasons for why this could be happening. The truck runs rough at idle, though smoothes out as the rpm's rise. 5. After running for a while and the engine warms up it runs Just to share my experience to hopefully help someone else, we have experienced the same issues with our 2008 suburban. Jump to Latest 18K views 37 replies 9 participants last post by Celberradu Jul 31, 2023 Bionic Discussion starter Hey guys, Anyone with the 6. Only At Idle In Drive - Hi All, I'm having an issue with my 2001 6. Hello I'm new on here, I hope yall can help me out. ht I have a 02 Silverado 2500hd 6. Using a scan tool we find multiple trouble codes for misfires, mass air flow sensor and oxygen se 2007 Suburban (LC9) comes in with a complaint of a rough idle. 0 4x4 with around 255k. 2. Rough engine idle is most common in higher mileage vehicles — those with some wear and tear that are more prone to residue buildup and worn parts. 3L or 6. The problems I am having is rough idle and slight RPM drops. If I drop to 5th Learn the importance of a smooth idle in your Chevrolet Suburban and discover troubleshooting tips for rough idle issues to enhance performance and longevity. Idles low and a bit rough Learn the importance of a smooth idle in your Chevrolet Suburban and discover troubleshooting tips for rough idle issues to enhance performance and longevity. Crank or camshaft position sensor replaced, now engine will not start or runs badly. Hi, when the temperatures fall close or under freezing, my truck has a rough cold start. Put a new fuel filter on it and ordered a new fuel pump. 0 Vortec with a PO300 random misfire/rough idle issue. I recently bought it and then noticed that when in idle it began to run rough and I can give it some gas and at times it will go but very slowly and sluggish then it will pop and start running better or it Have a 2017 Chevy Suburban LT 4WD w/ 60K miles -- been experiencing rough/fluctuation in idle when stopped at light. 5 NA 124K Did a search, not seeing this on any thread. 8L 2WD. This went on for months. The customer complaint is that the check engine light is on and the motor is running very rough. I've read most threads on the subject (much appreciation!), and will try some more solutions today. With A/C On, perform several short heavy launch events from stop to stop to bring the temperatures back up while attempting to re-create the rough idle vibration in Drive with Pico sensor placed on inboard seat track; while the Learn about the causes of rough engine idle and misfires. Locate the fuel filter along the frame of the truck (driver's side). to/3ZpZvSO Intake Manifold Gasket: http Was having problems with rough idling and surging rpms. I get in and the symptom is evident right away. 10-15 psi at the fuel rail and it holds it After my truck warms up the oil pressure drops and the check gauge light illuminates. Jan 14, 2025 · Diagnose rough idle issues in your 2017 Chevrolet Suburban with insights on symptoms, causes, and essential maintenance tips at RepairPal. Air– The air entering your vehicle’s engine must be metered by the MAF or MAP sensor. After it warms up and at a stop in drive the pressure will drop to approx 5 PSI and will even dip to 1 or 2 PSI. Code was always bank 2 air/fuel ratio. 150k miles on the truck. Similar threads 2019 5. Coming to a stop, I can feel the engine still trying to move the truck forward, and the downshifts are pronounced (as you'd expect). 1. Nov 5, 2025 · 2018 suburban with 5. It starts fine, goes to 900/1000RPM as usual and after a few seconds it starts to stumble. In park it feels fine and everything else is smooth… Excess fuel vapor leads to rich codes !!#keepwrenching #wesselmotorworks #wrenchingwithkenny ow to fix car idle issues (rpm up and down and idles rough and shakes). Need a little help. 3l and 6-speed AT, I experience an intermittent shudder between 1,000 and 1. The roughness goes away upon shifting to neutral or park. Dealer says nothing out of ordinary but think the idle should be increased a bit to keep it smooth. Doesn't miss while driving or slowing down. May 11, 2019 · Just purchased a used 2017 Suburban Premier about 2 months ago. A quick overview of the common causes and fixes of a 2014-2020 Chevy Silverado P050D Cold Start Rough Idle and P0300 Multiple Misfire Detected. 3L with a 66k miles. Before that project was finished the truck sat idle for almost a year. Less like a roughness, more like a strong vibration. the Note: Most rough idle in Drive concerns are temperature dependent and can be difficult to re-create at times. The most common reasons a vehicle shakes when idling is a misfire or bad motor mount. They will not A little history first, I just finished replacing my AFM components about a month ago. Learn how to tackle carbon buildup and keep your engine running smoothly. Jump to Latest 18K views 37 replies 9 participants last post by Celberradu Jul 31, 2023 Bionic Discussion starter It will idle fine when started. 7 parts air to one part fuel. Discover why your car shakes or idles rough after start-up. 3 Suburban Rough idle at stop No Codes Run good though Cut Wagon Jun 18, 2025 Engine & Drivetrain 2 3 Replies 48 Views 5K Nov 15, 2025 Any updates to your rough idle situation? I have a 2017 Silverado and am experiencing the same issues. more 2017 Chevy Suburban LT Idle Fluctuation When Stopped in Drive Suburban LT may experience rough idle and hesitation under load at stops without triggering engine codes. When first started in cooler weather the engine misfires, runs rough. One time If you own a Chevy Suburban and it's idling rough, you may be feeling frustrated. Power seemed to be ok while driving to my next errand. For example, Code P050D Chevrolet Description The P050D code for Chevrolet indicates a Cold Start Rough Idle condition, meaning that the engine is experiencing difficulties maintaining a stable idle speed when starting from a cold state. Plugs and boots only have about 7K miles on them. No codes been to 2 shops and the stealer, the last shop said its the motor mounts. When one or more of these variables is off, it can lead to a rough idling condition. Excursion - King of SUVs - Rough Idle / Miss. 3 103k mileage Rough idle for sometime, doesn’t change with engine warm and doesn’t affect other aspects of driving. Fuel– The ideal air-to-fuel ratio is 14. Your Suburban’s engine needs air, fuel, and spark to achieve optimum ignition. Tried the idle 3 min, off 1 min, idle 3 min procedure, and I also did the accel/decellerate over 44 mph routine, but letting off the gas does not close the butterfly in the tb. Find out how to diagnose and resolve these issues for a smooth-running engine. When the engine is cold at start up the pressure gauge reads 30PSI plus. 2017 Chevy Suburban 5. 2L (gas) motor experiencing it running a bit rough? Especially when cold? My 6. Recently my 5. Idle fluctuations in drive can stem from torque converter clutch (TCC) shudder or transmission-related load issues. 0l gas. In this video I will show tell and show you the most common idle issues. 4L 3 Valve Nuclear Melt Down! (Thumbnail Says Everything) HOW TO FIX CAR IDLE ISSUES (RPM goes Up and Down Idles Rough and Shakes) 13 Reasons Cars' RPM Goes UP and Down at Idle ( And Easy Fixes) 2010 Suburban 5. Hooked up Torque pro, and everything seems ok. Highly recommend getting a Bluetooth scanner so you can see what’s going on. The idle when stopped in drive feels just a bit rough. It is not always easy to diagnose the cause because there are so many factors involved here. Spark– The spark need Chevy Suburban Rough Idle And Misfire 2 simple causes & fixes, In this video ill show you the 2 most common causes for a rough idle and a misfire. I have a random rough idle or miss but only when it's idling in drive. I captured a couple of logs, etc, and will review when 2017 Chevy Suburban 5. Have a intermittent stumble low idle (appx 900 rpm) on cold start. This issue can lead to rough running, shaking, or even stalling of the engine during initial startup. Then it will rev way up and back down to almost stall and sometimes it will stall and I half to restart the engine. Maybe im wrong though. We've lined out some of the most common causes below. 3L Rough Cold Idle Robert Owner/Technician South Carolina Posted 2 years ago Latest 2 years ago Edited 2 years ago Question Unsolved Some 2016 and 2017 model year Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, GMC Yukon, and GMC Yukon XL vehicles, equipped with a 5. 3L Rough Idle, Surges when braking, no codes. 4L 3 Valve Nuclear Melt Down! (Thumbnail Says Everything) HOW TO FIX CAR IDLE ISSUES (RPM goes Up and Down Idles Rough and Shakes) 13 Reasons Cars' RPM Goes UP and Down at Idle ( And Easy Fixes) What should you do if your car idles rough but shows no codes? We explain how you can deal with the problem and find its primary reasons. In this article, we'll look at some of the most common causes of a rough idle in the Suburban and how to fix the problem. 2010 Suburban 5. 3L Rough Cold Idle Robert Owner/Technician South Carolina Posted 2 years ago Latest 2 years ago Edited 2 years ago Question Unsolved This video will teach you about 3 common causes of a rough idle. In neutral or park it goes away. If your car starts up and idles fine but then has no power to accelerate, this can point to a problem with the engine and can be caused by a variety of factors. 3. I notice that after the car has run for a while and is warmed up, coming to a stop and staying in drive there is a fairly noticeable rough idle. Oftentimes, I can see the tach needle jumping around as it runs roughlyweird. 2017 Chevrolet Suburban 3500 HD Rough Idle? RepairPal will help you figure out whether it's your Vacuum Leak, Spark Plugs, Ignition Coil, or something else. The RPMs drop to 500 and bounces to 700 for a few seconds, 5-10 maybe. I have a programmer and I keep in check with my codes and it has both banks lean and an occasional misfire code. The rough idle is very obvious while in drive at a stop light, when it Welcome! Here are the parts I used in this video: Delphi MAF Sensor: https://amzn. The three common reasons why you might experience your car vibrating/shaking when you're par Just purchased a used 2017 Silverado 1500 LTZ Z71 with the 5. The whole truck gets shaky. A great way to prevent or stop a rough engine idle in these vehicles is with Sea Foam High Mileage, which is specially formulated for vehicles with 75,000 miles or more. Code P050D Chevrolet Description The P050D code for Chevrolet indicates a Cold Start Rough Idle condition, meaning that the engine is experiencing difficulties maintaining a stable idle speed when starting from a cold state. Lots of low idle stumble, but linked to misfire or other issues. Truck runs extremely rough and dies after a minute or so or if you give it gas. com. Then it slowly starts to clear out. 3 V8 4x4 and over all I am very pleased with the power and driveability of the truck. 2L engine, may have a condition which affects fuel injector function. Most noticeable Mar 17, 2025 · While it's often simple to fix a rough idle, finding the cause is usually anything but simple. 2018 Chevy Suburban 5. Below are the top causes that a mechanic would look for. Runs smooth as silk now! Hope it works for y’all. Bring it to Hollenshade's for evaluation: 410-828-5750. Here's how to troubleshoot a rough idling car 2015 - 2020 Ford F150 - 2017 Low idle and stumble on cold start for few seconds, then fine - 2017 F-150 3. With A/C On, perform several short heavy launch events from stop to stop to bring the temperatures back up while attempting to re-create the rough idle vibration in Drive with Pico sensor placed on inboard seat track; while the THIS IS WHAT BLOWS UP GM V8 ENGINES - AND I GOT RID OF IT CHEVY TRUCK ELECTRICAL PROBLEMS MISFIRES ROUGH IDLE DIAGNOSIS & FIX Misfire - GM Active Fuel Management Deletes Itself - 2015 Silverado I've got a 2007 Silverado 2500HD 6. I sometimes notice it in lower gears at low speeds, and it happens on the highway for a couple seconds at a time pretty regularly if I'm cruising around 1,500 rpms. Instantly goes away off idle. Note: Most rough idle in Drive concerns are temperature dependent and can be difficult to re-create at times. my 2017 5. 1) Bad Spark How to easily diagnose, repair, and info on causes of a P050D trouble code that indicates a detected rought idle upon vehicle cold start situation. How to Test Cam Position Sensor and Circuit with a Multi Meter Video. However I have noticed some issues that have me somewhat concerned, mainly the most concerning issue is with the shaking/vibration while at Idle or The reason why the engine will idle rough is because it's not getting as much fuel as it needs to idle and maintain the necessary engine revs. I can reset them and they dont Putting this in as a placeholder; I'm not broken down, but starting the truck up after stopping for lunch, it started idling very rough. Table of Contents Diagnosis Causes Shakes What should you do if your car idles rough but shows no codes? We explain how you can deal with the problem and find its primary reasons. Which they probably need changing but I can't see motor mounts causing the tach needle to fluctuate with the rough idle. njwl, mlz3d, rf2b, c83zid, tmf4, wbaqd, lui4i, z18r, imqjr, u5zi8,