Other Fuel System Problems of Chevrolet Tahoe - part 1

Check engine light illuminated on my 2021 Chevrolet Tahoe. Upon diagnostic scan, the following emissions-related fault codes were present: p11d5 (nox sensor), p14d9 (nox sensor), p2383 (egr pressure sensor), and p2c7a (nox catalytic converter efficiency). All components are available for inspection upon request. The vehicle was taken to an authorized Chevrolet dealership for diagnosis. The dealer acknowledged the emissions codes but stated that unrelated components would need to be repaired at owner expense before the emissions system would be addressed, despite these codes falling within the federally mandated 8-year/80,000-mile emissions warranty. The fault codes were confirmed by the dealership. No safety incident has occurred to date, however degraded nox and egr function can result in increased harmful emissions output and potential engine performance issues. Warning lamps appeared without prior incident or symptom. The manufacturer has not offered to cover the emissions components under the federal emissions warranty without the owner first paying for additional repairs that may or may not be causally related to the emissions system failure. When the dealer was directly asked, "are you saying the emissions system itself is functioning correctly, and something else caused these codes to appear?" — the dealer did not provide an answer. This question was asked in order to clarify whether the emissions components themselves are degraded or failed, which would confirm warranty coverage eligibility. The dealer's failure to answer this question directly is noted as part of this complaint.

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My 2022 Chevrolet Tahoe diesel unexpectedly lost power while driving. I was stopped, made a right turn, and accelerated to approximately 34–40 mph on a two-way street when the vehicle suddenly shook, shifted into neutral, and the engine shut off without warning. There were no warning lights, dashboard messages, or prior symptoms before the failure. I was driving with two young children secured in car seats at the time. This created a serious safety risk because the vehicle became disabled in the roadway, and I had limited control while traffic was present. The vehicle has not yet been diagnosed, and the exact failed component/system is unknown. The vehicle is available for inspection upon request. The incident has been reported to a dealer or service center, but the problem has not yet been confirmed or reproduced at this time.

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The car has cut off three time while at stoplights. I can get it restarted but the dealership cannot duplicate it even though there are codes in the system. Also the automatic braking will randomly stop when it shouldn’t and it is a hard braking.

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Vehicle lost all power while driving on interstate, there were no warning messages displayed. The initial recall was performed on vehicle.

The engine randomly shut off while driving down the interstate and wouldn’t start back up. The car had the recall “remedy” done to it. Inspection and thicker oil. The only warning I got was to restart the engine after it shut off. My safety was compromised by breaking down on a main interstate coming through memphis with no emergency lane to pull over in.

The car appeared to run out of gas. It had a half tank of gas. Lucky when it happened I was in the parking lot of my hotel for the night. I was pulling a boat at the time and was 50 miles from a chevy dealership. Had the car towed to a repair shop where they determined the fuel control module failed. Chevy refused to cover the repair or my inconvenience. There was no previous indication there might be a problem.

Without warning my Tahoe would no start 60 miles from home due to a faulty fuel pump module. I was stranded and the vehicle needed to be towed to a gm dealership for repairs. Many 2021 Chevrolet Tahoes have been recalled for this problem and I believe my vehicle should be included in the recall and $787. 50 should be reimbursed by including my vehicle (573 safety recall report 21v-739. September 16,2021 gm part #13537053 fuel pump control module. I have paid receipts .

Since March of 2025 I have identified a critical safety defect with my vehicle. When driving and without warning, the vehicle unexpectedly shifts to neutral, experiences a loss of propulsion, and the engine shuts off. This has occurred multiple times in which I narrowly escaped collisions with other vehicles or objects. If this would occur at a high rate of speed, it would certainly result in serious accident including possible fatality. I have experienced three near-accident scenarios when I had children in the vehicle. I have worked with classic Chevrolet in sugar land, texas who has made six attempts at repair. They have each time found a different component attribute to an error code and replaced that part. After each visit they tell me that the car is fixed and safe to drive. They have never been able to provide a clear explanation as to why I am experience this reoccurring issue, but attribute it to a different part each time. Within 5 days to 2 months, the incident repeats. I have recent video of the incident that I can share. Chevrolet customer care has been minimized my concern and informs me that their service staff has found the vehicle to be fully operational and safe to operate. I have spent over $6,000 in failed repairs. I do not feel safe operating this vehicle. That list of repairs includes: March 7, 2025 - battery replacement March 28, 2025 - DC/DC power converter April 22, 2025 - ecm updates January 8, 2026 - •throttle body replacement •serpentine belt replacement •engine air filter replacement •transmission fluid flush •coolant fluid flush •fuel injection cleaning •hydrogen carbon cleaning service January 23, 2026 - power control module (recall) January 30, 2026 - rear differential system replacement March 10, 2026 - • replacement of the high-pressure fuel pump • replacement of the DC power supply converter • hydrogen carbon cleaning service I can share all invoices. Chevy is not taking this matter seriously. Please support.

Picoscope test passed on 2/3/2026 with mileage of 58061 at everett Chevrolet, benton, ar. On [xxx], while driving received an error code, no oil pressure and vehicle became disabled in the middle of the road. Tahoe was towed to teeter Chevrolet in malvern, ar. We were notified on Friday that the engine was bad and would need to be replaced. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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The failure is believed to have originated in the fuel delivery system, specifically the check valve in the low-pressure fuel feed jumper line at the engine. This valve failed to seat properly, allowing high-pressure pulses to travel back into the low-pressure side of the system. This malfunction caused the s-shaped portion of the fuel feed line near the tank to vibrate excessively against its mounting clip. This constant friction wore through the line, resulting in an active fuel leak. All damaged components remain on the vehicle and are available for inspection upon request. The safety of the driver, passengers, and the public is at immediate risk due to a severe fire hazard. Because the leak is located near the fuel tank and undercarriage, gasoline is being released where it could be ignited by road sparks, static electricity, or exhaust heat. A fuel leak of this nature threatens a catastrophic fire that could result in vehicle loss or personal injury. The problem has been confirmed via a physical inspection that matches the symptoms documented in a gm service bulletin (recall - high pressure fuel pump leakage). While the vehicle has not yet been subjected to a formal tear-down by a dealer due to the danger of driving it with a leak, the visual evidence at the exact location specified in manufacturer documentation confirms the failure. To date, the vehicle has not been inspected by the manufacturer, police, or insurance representatives. Prior to the leak, the primary symptoms were an audible rattling and ticking noise from the engine bay and underside, characteristic of the pressure pulses described in the TSB. There were no warning lamps or dashboard messages, as the mechanical wear on the exterior of the fuel line occurred outside the scope of the vehicle’s onboard diagnostic sensors.

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I took my 2023 chevy Tahoe in for all recall corrections promptly when the notices were received. My last recall was to run a check to see if my motor was one of the defective 6. 2l engines. It was determined it was not and the dealer changed my oil to the new required 0w-40w. Now a month later as I am accelerating on to the freeway ,I am at 65 mph I cross traffic to merge on to a connector bridge and my car rpm's go through the roof and the car starts to slowly lose power. Zero warning lights are on at this point just decreasing power. As I am on the bridge my engine light comes on with a engine oil hot idle engine notice I am now at 35 mph. Then a oil pressure low turn vehicle off notice comes up and we are at 15 mph the car turns off. The screen says press start again but as we do it wont do anything. It then randomly starts turning off and on. We got to a point on the bridge where we could coast to the connecting freeway below and pull over. My car was towed to the dealer where it has been confirmed it needs a new motor with no know eta of the new motor.

1st issue: 9/2025, after driving from another city to my home at 55-75 mph. As I pulled up home, the car just stalled and wouldn't start. I googled issue to find out it was a commonly known issue by gm. If fuel pump control module had happened while driving faster and not on my street to roll up to curb. I would have or could have been deadly. I find out what part # and local dealer knew there was a recall but told me he never heard about it and charged me for part. I installed in front of home on street and have been trying to get money back after reporting to gm I repaired my fuel pump control module and have been trying to get my money back from a repair done on 9/29/2025 by me. Gm says it's looking into still after I keep calling them on status of this notice. I still have old part. I have filled out all reimbursement forms. 1st the danger of it failing and now no money. By the time engine light comes on you have no power for any stopping or steering. #2 engine 2021 Tahoe high country 6. 2 l no recall has been sent. Gm has known about an engine that has multiple failure issues that could get you in a serious accident/death by just stop running, while just driving at any moment, internal failures and main seal leaks, more! mine just poured oil out on driveway after driving 6 miles to church and back. This will be the largest and most deadly auto issue in history. They even had dealers now with any on lot with this engine a stop sale order. Aprox. 800,000 of these engines are out there, local gm dealer says there is no recall. 2021 to 2026 and they have only changed out aprox. 2800 engines and telling me mine sitting in driveway is not on recall. Bs. These engines are in their high-end trucks, SUV's, escalades. Someone needs to get gm to do what's right and replace with new engines. That have been tested, all issues before someone has to die. Trying to keep silent on internet is sad. Yes its going to cost billions. But to keep customers safe and not scared.

I was driving down a busy road with my toddler in the car when the car just stopped. Went from traveling 40 mph to a complete standstill. Dead, in the middle of the road. No warning lights or signals at all. Could not get the car in neutral. Wheels locked up and not able to shift to neutral without the car being on, which was not happening. Had to get the car towed to the dealer. The tow truck driver had to drag the car on to the truck. No getting the car in neutral at all. Dealer diagnosed the problem as the fuel pump control module, which after researching is a major problem for this make/model/year. Should most definitely be a recall that has to be remedied by the manufacturer as this is not safe at all. Could have easily been hit due to traveling at a normal speed to stopping so suddenly. Then on top of it, not being able to get in to neutral to get to a safe location out of traffic.

What component or system failed or malfunctioned, and is it available for inspection upon request? complete engine failure. 2nd time this engine failed cylinder 4 bent rod. Cylinder 7 and camshaft. How was your safety or the safety of others put at risk? yes. Loss of power on busy highway. Trying to navigate to the shoulder through 5 lanes of high speed traffic. Has the problem been reproduced or confirmed by a dealer or independent service center? has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? yes. I have a copy of a manufacture technical bulletin confirming the problem and service records. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no1.

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I noticed the vehicle had intermittent hesitation while accelerating to merge onto a freeway on the previous evening. We drove straight home from there and the next morning as we prepared to go somewhere the vehicle lost power in our driveway and now will not start. Trouble code p129f fault code is being thrown. This seems to be related to the gm issued TSB pip5964 and the also gm recall n252516900 . However, gm is denying that our VIN should be affected. I'm concerned that they're not aware of or intentionally excluding vehicles that could have this issue. Had we lost power while in motion, like on a busy freeway or crossing an intersection, this could have been catastrophic.

Vehicle cranked longer than usual, noticed slight smell of fuel. After arriving home noticed fuel smell was very strong and a puddle of raw fuel under vehicle. Fuel line appears to have rubbed/vibrated against the frame of the vehicle causing the line to rupture. Date of incident 12-26-2025. No mil or warning messages were present. The vehicle has not been inspected by anyone other than myself for this incident. I feel this issue could have resulted in serious injury or death of my entire family and possibly others on the road. The vehicle has not been modified in anyway and is in oem configuration. We will have to have the vehicle repaired but will document as best we can. I would like to add that after a quick internet search I found this to be a common issue so I was amazed there was no recall on our Tahoe. Thank you.

Unknown.

I was driving on the highway at approximately 35mph when I noticed there was no response from the accelerator. I shifted the vehicle into neutral and coasted onto a side road and call onstar for assistance. The dashboard indicator said to restart engine. I attempted to restart, but the engine would crank but not turn over (start). The vehicle was towed to the dealership where the fuel pump assembly was found to have failed and need replacement.

The vehicles ability to accelerate was limited. Several system service warnings came on along with the check engine light.

During a normal acceleration from an on-ramp onto a major interstate a check engine light (cel) came on with warnings of safety features no longer being active. The vehicle begin vibrating abnormally and the pedal was not very responsive. I took the next exit and stopped at an auto parts store to have the engine code checked. Cylinder #2 misfired due to an injector issue. The vehicle was confirmed to have this issue at a Chevrolet dealership. The car was a cpo through Ford and was covered. I owned the vehicle for 14 days. This unit has the l87 motor, and had already undergone a motor replacement under the recall warranty. The injectors apparently were not replaced, only the o-ring. Unlike many manufacturers gm has removed fuel injectors from their powertrain warranty. A motor with under 5,000 miles was not covered since the body and bolt-ons were original with 45,000 miles. Gm has a very recent history of injector recalls and issues. These injectors should undergo the same scrutiny as previous gm injectors.

1. What component or system failed or malfunctioned, and is it available for inspection upon request? answer: the vehicle’s 6. 2l l87 v8 engine suffered a sudden internal mechanical failure involving the connecting rod, rod bearings, and crankshaft assembly, resulting in catastrophic engine damage. The failure mode is consistent with the defect described in gm recall n252494001. The engine and all damaged components are fully available for inspection upon request. 2. How was your safety or the safety of others put at risk? answer: the engine failed without warning while the vehicle was in motion, causing an immediate loss of propulsion. This created a hazardous situation where the vehicle could no longer accelerate or maintain speed in traffic, increasing the risk of a rear-end collision or loss of vehicle control. Gm’s own recall documentation identifies this exact failure mode as a significant crash risk, and that same hazard occurred in my case. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? answer: yes. A service technician confirmed catastrophic internal engine failure consistent with connecting-rod or crankshaft damage. The dealer also verified that the engine is inoperable and requires full replacement. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? answer: no, the engine failed while in motion and was taken to the closest mechanic. Inspections by an insurance representative or manufacturer representative can be arranged. The vehicle and damaged engine remain available for further examination. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? answer: no. There were no warning lamps, diagnostic messages, or drivability symptoms prior to the catastrophic engine failure. The failure occurred suddenly and without any advance indication. All service records are available.

While driving my vehicle shut down. It will not longer crank. Had to have it towed. I am told that it’s the fuel pump driver control module. I carry my two children in this vehicle daily. This could have ended very badly. Now not only is my family without a dependable vehicle, I am going to be out a lot of money on an issue that is already a common issue.

I am writing to formally request a review of my vehicle’s eligibility for recall n212332040. I own a 2021 Chevrolet Tahoe, which is currently not listed under the affected vehicles for this recall. However, based on the recall description and the symptoms outlined, I believe my vehicle experienced related issues and should be considered for inclusion. While driving down the highway my vehicle experienced power failure leading to a full stop in the middle of the highway, resulting in a 9-1-1 call due to safety concerns for myself and oncoming traffic. The car was later diagnosed with the fuel pump module failure that other vehicles within the same year & model experienced, which were included in the recall. Why mine wouldn’t be included is quite confusing. I respectfully ask that your team investigate whether my Tahoe meets the criteria for recall n212332040. On 10/20 I sent in a request to the GMC recall department & on 11/11 I was denied anything further. I appreciate your attention to this matter and your commitment to vehicle safety.

Fuel pump failure caused my vehicle to stall not once, not twice, but three times in the middle of the interstate on my way back home from out of state. This was terrifying, especially since my kids were in the car with me. The entire vehicle shut off in the middle of traffic and I was in the far left lane.

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The fuel pump control module failed while I was driving. My vehicle shut down in the middle of the road. I was unable to put my vehicle in neutral to move it off the road. A tow truck had to come in order to get it out of traffic. The next day we had it towed to the dealership who replaced the fuel pump control module. This is a safety issue because the car will shut down with no warning while driving. It’s very dangerous. The second safety issue is that the vehicle becomes immovable without a tow truck. There is no accessible shift override to manually put the vehicle in neutral.

Low oil life notification on phone. Since l87 recall, an oil consumption test was stopped and the new type of oil has been added to the vehicle 5k miles ago. Had to add a full quart to register on dip stick. Will now start another oil consumption test with a dealership. I am very concerned about my families safety.

The fuel pump went out. We were driving, about to enter traffic, and the engine shut off. It would not restart, and we had to have it towed to a mechanic's shop. The fuel pump control module was removed and replaced.

I own a 2021 Chevrolet Tahoe high country (VIN: [xxx] ). My vehicle is subject to recall #n252494000 (NHTSA #25v274) concerning the l87 engine and potential loss of propulsion. On [xxx], I received a “low oil” warning for the second time within a few months. This recurring issue matches the recall description. I contacted my local dealer, kramer autoplex (livingston, TX), who confirmed the recall but stated no remedy is available. I am deeply concerned about safety, as the engine may suddenly lose power or sustain damage, leaving me and my family stranded or at risk of a crash. At this time, I have no assurance that my vehicle is safe to drive, no remedy is being offered, and I have already incurred expenses related to monitoring this issue. I am requesting NHTSA’s support in ensuring gm provides an expedited fix or interim assistance for affected owners. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Tahoe died while stopped, did not want to restart. Finally restarted and had no power when pressing the gas. Died again. Would not restart. Towed to dealership. Onstar identied it as a fuel management system error.

On August 23, 2025 while driving on a highway with my daughter in the backseat, my car gradually stalled while it was going through an intersection. It ended up stalling prior to a turn ramp onto another highway. This resulted in an unsafe condition and unsafe location as it happened without warning or any alerts prior to or during the drive. The Tahoe was towed to the dealership service repair shop (hendrick Chevrolet in cary, nc) and was found to have a fuel pump control module failure requiring replacement (replacement: fp-number 13554821, module 3. 900). The dealership service department acknowledged this is a part failure on the manufacturer end; however, mentioned this is a safety bulletin, but not a recall for the part. Due to the Tahoe being outside of warranty timeframe, this ended being an out of pocket expense. The service staff told us there were four other Tahoe vehicles waiting for this part at the dealership, and we waited over a week to obtain the part as it had to come from the manufacturing line. Due to the timeframe for repair (>1 week), we had associated rental car payments that was not provided by or covered by the dealership/manufacturer.

Check engine light illuminated then went off and came back on after another drive cycle. Vehicle began to idle rough and experienced hard shifting and acceleration hesitation. I checked the oil and noticed a fuel odor smell on the dip stick and the oil appeared thin. Upon mechanic inspection they found a malfunctioning high pressure fuel pump. This part was recalled on other vehicles of the same model year due to bad welds. This could have resulted in fire if left unchecked.

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The fuel pump power control module failed. The service center tested the vehicle and the error code was for this component. I do not believe the service center kept the part. The part failed while driving, the engine stopped running and the vehicle lost all power with no warning. I had the vehicle towed to an independent service center where it was confirmed through diagnostics that the component had malfunctioned. Prior to and during the failure there were no warning lights or signals to indicate there was a problem prior to the vehicle shutting down.

2021 Chevrolet Tahoe original owner. Fuel control module failures. 1. Failed on 6/29/21 at 5,068 miles. Dealer replaced with gm part #13537053. 2. Failed on 8/15/22 at 12,130 miles. Dealer replaced with gm part #13544060 3. Failed on 8/1/25 at 41,247 miles. Dealer replaced with gm part #13554821 on each failure, vehicle was unable to shift to neutral, power remained on, electrical component began shutting down to conserve power, left stranded and required towing with rear wheels being dragged locked up onto tow truck. Once power was shut down, could not operate windows or lock doors other than keyed driver's door. Th entire failure mechanism puts the driver in an extremely unsafe situation. Recall notice #21v739000 was issued on 9/23/21 with to impacted notified owners on 10/14/21. Did not receive this notification since first failure was prior to recall and assume gm considered vehicle repair completed. Note that the fuel module part number has changed 3 times in my case, but part # 3554821 replaces 5 other listed part numbers. Is this the 6th iteration or of this part? what is the root cause of the fuel module failure? is it the module itself failing or an electrical issue that causes the fuel module to short out and fail. Gm/Chevrolet is not solving this issue. With 3 failures of the same component, this is a lemon and I have no comfort or confidence using this vehicle. When will the next failure occur and what unsafe situation will this leave me stranded in? read this issue applied to 2021 and 2022 gm full size SUV's and now reading issues through the 2024's. Unacceptable and poor quality. Gm needs to be held accountable to solve the root cause of these failures and stop putting a replacement band aid on the problem.

The fuel filler neck for the diesel has a plastic neck extension made of cheap plastic and it broke making it a hazard to even fill the vehicle up and diesel fuel is spilled, not secured, and fumes could cause a fire hazard because the piece is faulty. Gm customer service ignores me and transfers me over and over until they hang up and never actually talk to me about this.

I am leaking fuel from the fuel lines connected to the fuel tank. I can smell the fumes inside of the cab. I also can see the fuel leaking under the driver seat.