16
Complaints
0
Crashes
0
Fires
0
Deaths

This Problem Across All Years

All Equipment Complaints

Showing 16 of 16
Dec 5, 2025

This is a Thor Scope RV built on the Promaster 1500 platform. The incident involves the Onan gasoline powered generator, which is directly connected to the fuel tank. Next to the generator in the fuel line, there is a small white inline fuel filter connected by the fuel hose going over a nipple on the filter and reinforced by a hose clamp. In my case, the hose clamp was not installed sufficiently over the nipple (far enough back on the fuel hose that it did not completely engage the nipple), and presumably from vibration associated with the generator operation and driving, the hose fully detached from the nipple and spilled fuel in an uncontrolled manner until I smelled/noticed it coming out from under the vehicle. There was certainly sufficient fuel to have started a major fire if it had reached an ignition source. Fortunately, I was able to get under the vehicle and push the parts back together once the problem was noticed. But, this would not have been possible if there were any ignition sources nearby. Fortunately, the vehicle was parked and off when the spill occurred. Had I not been able to stop the leak, it is my understanding that 3/4 of the tank would have drained since I've been told that the intake is located at the 1/4 full level of the tank to prevent the generator from running the vehicle completely out of fuel. Photos attached show the part after I pushed the hose back on and tried to reposition the hose clamp closer to the center of the filter. This was very difficult to do while laying on the ground under the vehicle, so I didn't get it on as far as I would have preferred until I was able to get the vehicle to a place where I could elevate it and get better access.

Dec 5, 2025

This is a Thor Scope RV built on the Promaster 1500 platform. The incident involves the Onan gasoline powered generator, which is directly connected to the fuel tank. Next to the generator in the fuel line, there is a small white inline fuel filter connected by the fuel hose going over a nipple on the filter and reinforced by a hose clamp. In my case, the hose clamp was not installed sufficiently over the nipple (far enough back on the fuel hose that it did not completely engage the nipple), and presumably from vibration associated with the generator operation and driving, the hose fully detached from the nipple and spilled fuel in an uncontrolled manner until I smelled/noticed it coming out from under the vehicle. There was certainly sufficient fuel to have started a major fire if it had reached an ignition source. Fortunately, I was able to get under the vehicle and push the parts back together once the problem was noticed. But, this would not have been possible if there were any ignition sources nearby. Fortunately, the vehicle was parked and off when the spill occurred. Had I not been able to stop the leak, it is my understanding that 3/4 of the tank would have drained since I've been told that the intake is located at the 1/4 full level of the tank to prevent the generator from running the vehicle completely out of fuel. Photos attached show the part after I pushed the hose back on and tried to reposition the hose clamp closer to the center of the filter. This was very difficult to do while laying on the ground under the vehicle, so I didn't get it on as far as I would have preferred until I was able to get the vehicle to a place where I could elevate it and get better access.

Dec 5, 2025

This is a Thor Scope RV built on the Promaster 1500 platform. The incident involves the Onan gasoline powered generator, which is directly connected to the fuel tank. Next to the generator in the fuel line, there is a small white inline fuel filter connected by the fuel hose going over a nipple on the filter and reinforced by a hose clamp. In my case, the hose clamp was not installed sufficiently over the nipple (far enough back on the fuel hose that it did not completely engage the nipple), and presumably from vibration associated with the generator operation and driving, the hose fully detached from the nipple and spilled fuel in an uncontrolled manner until I smelled/noticed it coming out from under the vehicle. There was certainly sufficient fuel to have started a major fire if it had reached an ignition source. Fortunately, I was able to get under the vehicle and push the parts back together once the problem was noticed. But, this would not have been possible if there were any ignition sources nearby. Fortunately, the vehicle was parked and off when the spill occurred. Had I not been able to stop the leak, it is my understanding that 3/4 of the tank would have drained since I've been told that the intake is located at the 1/4 full level of the tank to prevent the generator from running the vehicle completely out of fuel. Photos attached show the part after I pushed the hose back on and tried to reposition the hose clamp closer to the center of the filter. This was very difficult to do while laying on the ground under the vehicle, so I didn't get it on as far as I would have preferred until I was able to get the vehicle to a place where I could elevate it and get better access.

Dec 5, 2025

This is a Thor Scope RV built on the Promaster 1500 platform. The incident involves the Onan gasoline powered generator, which is directly connected to the fuel tank. Next to the generator in the fuel line, there is a small white inline fuel filter connected by the fuel hose going over a nipple on the filter and reinforced by a hose clamp. In my case, the hose clamp was not installed sufficiently over the nipple (far enough back on the fuel hose that it did not completely engage the nipple), and presumably from vibration associated with the generator operation and driving, the hose fully detached from the nipple and spilled fuel in an uncontrolled manner until I smelled/noticed it coming out from under the vehicle. There was certainly sufficient fuel to have started a major fire if it had reached an ignition source. Fortunately, I was able to get under the vehicle and push the parts back together once the problem was noticed. But, this would not have been possible if there were any ignition sources nearby. Fortunately, the vehicle was parked and off when the spill occurred. Had I not been able to stop the leak, it is my understanding that 3/4 of the tank would have drained since I've been told that the intake is located at the 1/4 full level of the tank to prevent the generator from running the vehicle completely out of fuel. Photos attached show the part after I pushed the hose back on and tried to reposition the hose clamp closer to the center of the filter. This was very difficult to do while laying on the ground under the vehicle, so I didn't get it on as far as I would have preferred until I was able to get the vehicle to a place where I could elevate it and get better access.

Oct 23, 2023

While traveling on the highway, the solar panel situated atop the van flew off as a result of strong winds. Fortunately, there were no injuries, but this issue poses a significant risk of severe harm or even fatalities. The solar panel remains unaccounted for. It is noteworthy that other owners of the same vehicle have reported similar problems. I am in contact with a representative of the manufacturer, Thor, but an inspection has not been conducted yet. There were no warning indicators or messages to notify me that the solar panel had detached; instead, it was a passing motorist who alerted me to inspect my roof.

Oct 23, 2023

While traveling on the highway, the solar panel situated atop the van flew off as a result of strong winds. Fortunately, there were no injuries, but this issue poses a significant risk of severe harm or even fatalities. The solar panel remains unaccounted for. It is noteworthy that other owners of the same vehicle have reported similar problems. I am in contact with a representative of the manufacturer, Thor, but an inspection has not been conducted yet. There were no warning indicators or messages to notify me that the solar panel had detached; instead, it was a passing motorist who alerted me to inspect my roof.

Mar 30, 2023 10,000 mi

The contact owns a 2022 Thor Motor Coach Scope. The contact stated while driving approximately 35 MPH, the awning opened independently and then detached from the vehicle. The contact pulled over to attempt to reattach the awning but was unable to do so. The contact called the dealer however, the contact was unable to take the vehicle to the dealer. The vehicle had not been repaired. The contact found that the failure was related to NHTSA Campaign Number: 23V068000 (Equipment) however, the vehicle was not included. The contact was unsure if the manufacturer had been contacted. The approximate failure mileage was 10,000.

Mar 30, 2023 10,000 mi

The contact owns a 2022 Thor Motor Coach Scope. The contact stated while driving approximately 35 MPH, the awning opened independently and then detached from the vehicle. The contact pulled over to attempt to reattach the awning but was unable to do so. The contact called the dealer however, the contact was unable to take the vehicle to the dealer. The vehicle had not been repaired. The contact found that the failure was related to NHTSA Campaign Number: 23V068000 (Equipment) however, the vehicle was not included. The contact was unsure if the manufacturer had been contacted. The approximate failure mileage was 10,000.

Mar 21, 2023 102,600 mi

The contact owns a 2022 Thor Motor Coach Scope constructed on a 2021 Ram Promaster 1500 Chassis. The contact stated that while the awning was closed, the awning extended unintentionally. Additionally, the awning made an abnormal sound. The contact related the failure to NHTSA Campaign Number: 23V068000 (Equipment). The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 102,600.

Mar 21, 2023 102,600 mi

The contact owns a 2022 Thor Motor Coach Scope constructed on a 2021 Ram Promaster 1500 Chassis. The contact stated that while the awning was closed, the awning extended unintentionally. Additionally, the awning made an abnormal sound. The contact related the failure to NHTSA Campaign Number: 23V068000 (Equipment). The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 102,600.

Jan 16, 2023

The Awning extends and retracts several times in a row, at about 1 foot extension, on intermittent occasions. If it goes fully out at highway speeds it could release from the van and potentially hit another vehicle, causing serious damage up to and including death. Thor has not issued a recall on this vehicle but other vehicles (Travato) with this same Awning have been recalled. This is an accident waiting to happen, actually it has happened numerous times already.

Jan 16, 2023

The Awning extends and retracts several times in a row, at about 1 foot extension, on intermittent occasions. If it goes fully out at highway speeds it could release from the van and potentially hit another vehicle, causing serious damage up to and including death. Thor has not issued a recall on this vehicle but other vehicles (Travato) with this same Awning have been recalled. This is an accident waiting to happen, actually it has happened numerous times already.

Oct 26, 2022

Solar panel on Thor 18M was completely blown off (now missing) the roof during a recent trip on 22-Oct-2022. The only remaining evidence of the solar panel is attached to the mounting brackets. PDF with pictures attached.

Oct 26, 2022

Solar panel on Thor 18M was completely blown off (now missing) the roof during a recent trip on 22-Oct-2022. The only remaining evidence of the solar panel is attached to the mounting brackets. PDF with pictures attached.

Aug 25, 2021 2,200 mi

The contact owns a 2022 Thor Motor Coach Scope built on a 2021 Ram Promaster 1500 chassis. The contact stated that while driving at various speeds, an abnormal grinding noise would emit from the vehicle. The contact had taken the RV to several independent mechanics who informed her that the generator was improperly installed on the trailer. The generator had been installed below the axle and should have been installed above the axle. The contact was informed that the generator was a major safety hazard that could cause a potential failure. The manufacturer was notified of the failure and stated that she would receive a call back. The contact had not received a call back from the manufacturer. The vehicle was not repaired. The failure mileage was approximately 2,200.

Aug 25, 2021 2,200 mi

The contact owns a 2022 Thor Motor Coach Scope built on a 2021 Ram Promaster 1500 chassis. The contact stated that while driving at various speeds, an abnormal grinding noise would emit from the vehicle. The contact had taken the RV to several independent mechanics who informed her that the generator was improperly installed on the trailer. The generator had been installed below the axle and should have been installed above the axle. The contact was informed that the generator was a major safety hazard that could cause a potential failure. The manufacturer was notified of the failure and stated that she would receive a call back. The contact had not received a call back from the manufacturer. The vehicle was not repaired. The failure mileage was approximately 2,200.