Engine Exhaust System Problems of Chevrolet Silverado 3500

The contact owns a 2020 Chevrolet Silverado 3500. The contact stated that after driving at an undisclosed speed and towing a fifth wheel, after visual inspection, the contact observed that due to the routing of exhaust system, heat from the exhaust had started to melt the front wall of the trailer. The contact was concerned that the trailer battery and propane tank were resting on the other side wall, which could potentially cause a fire. The vehicle was not taken to the dealer or an independent mechanic. The manufacturer was notified of the failure but advised the contact that the exhaust could not be rerouted. The failure mileage was 40,000.

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Diesel exhaust filter (def) and flow reduction tube on duramax lml engine. Fautly def requires extremely high temperatures to clean - or regenerate - causing the def and reduction tube to fail. High temperatures are a fire hazard to vehicle and grass or other terrain over which the truck is parked. Gm no longer manufactures the reduction tube, gm part number 25960609 forcing the consumer to wait for gm to make part on special order basis - over 30 days - or force consumer to remove def or make other fabrication, order to operate the vehicle. Gm is aware via customer service and dealer complaints that the lack of part 25960609 availability is a nation-wide problem and has a high failure rate. Gm stopped production as a cost saving measure. The duramax lml engine is in service mostly as commercial vehicle fleet. Thus, there is a high probability of unsafe fabrication in order to restore vehicle operation.

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Tl-the contact owns 2011 Chevrolet Silverado 3500. The contact stated that while driving at 55 mph, the vehicle failed to accelerate pass 50 mph and the exhaust fluid quality poor warning indicator illuminated continuously. The failure recurred on a daily basis. The vehicle was taken to a dealer. The technician diagnosed that the diesel exhaust fluid tank was faulty. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unavailable. Pam.

Exhaust fluid quality poor appeared on the dash display, so I toped it off with more fresh def and the warning went away. 3 days later the same warning came back on the dash display only with a new warning with it that said vehicle speed will be limited to 55mph next fuel fill, it did! I took the truck to the dealer they found bad nox sensors 1&2. Repairs where not done because I felt that should be some sort of recall on defective parts that controls the drivability of a vehicle. On Feb-4-2015 I received a letter from gm after 2 years telling me that my truck may have nox sensors that can become contaminated and that gm is extending the warranty on the nox sensors and the wire connectors for 10/yrs. 120. 000 miles which ever comes first. So I go back to the dealer and show them the letter from gm and show them my receipt from when I came in 2 years ago that shows that the nox sensors were defective way back in 2013 and are still on the vehicle and I need the repairs done per the letter from gm. The dealer is refusing to repair the vehicle because of the mileage that is now on the vehicle, however the defective parts that failed when the vehicle was within the mileage are still on the vehicle and I feel should be replaced and repaired or reimbursement for $800. 00 programmer. I have contacted Chevrolet and they are working with that dealership to try and resolve this issue. Case number is available if needed, gm letter number is 13386.

The contact owns a 2012 Chevrolet Silverado 3500. The contact stated that when the heater was activated, the exhaust fumes would enter the cabin of the vehicle. The vehicle was taken to the dealer for inspection where they advised that the down tube failed and needed to be replaced. The vehicle was not repaired and the odor was still present in the vehicle. The manufacturer was not notified. The failure mileage was 20,000.

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Strong exhaust and or raw fuel smells inside cab and around outside of vehicle engine bay. Especially noticeable when vehicle is regenerating. Smoke billowing out from under right side of hood. A clear liquid and a black liquid running down exhaust pipe from turbocharger exhaust exit. Noticeable leakage on floor under vehicle. This is a fire hazard that is not being diagnosed, repaired or tested correctly. This vehicle has been to gm dealers three times to address these problems.

Purchased vehicle and immediately noticed a burning odor within the cab at times. This odor/fumes would burn my eyes, leave me coughing, give me headaches, and make me feel dizzy and sleepy. The problem continues and comes and goes. I have taken to the gm dealer 6 times. On 2 occasions the vehicle was brought in while the problem was there and the mechanic and service writer noted the fumes within the CA, the dealer has performed many test and repaired what they thought was the problem twice. This problem cant be repeated it but does happen quit often. The dealer and gm are not wanting to work on the vehicle because the problem is too hard to repeat. I feel this problem is a serious safety concern. I feel I could potentially pass out and at the least loose visibility because of the burning sensation in my eyes when the problem occurs.

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Manifold bolts rusting out.

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The contact owns a 2008 Chevrolet Silverado 3500. The contact smelled a strong odor of carbon monoxide emitting from the cab of the vehicle. As a consequence, two employees developed severe headaches from the toxicity. The dealer cannot remedy the failure. A technician stated that the exhaust from the utility body was entering into the cab of the vehicle, which caused the failure. The failure mileage was 500 and current mileage was 2,600.

2007. 5 chevy 3500 diesel pickup: when the exhaust re-gen cycle is interrupted, exhaust fumes enter the passenger compartment. Gm has stated the system is operating as designed they will do nothing further.

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Broken exhaust manifold bolts 2004 6. 0 chevy Silverado 3500 29000 miles.