Caterpillar c7 regeneration problems

From tothe Cat C7 was Caterpillar's engine offering for medium duty class trucks. Medium duty trucks cover a gross vehicle weight range of 18, to 33, lbs, have a single drive axle and are typically box trucks, flatbed trucks and tow trucks. The Cat C7 replaced the model E in the Catepillar on-road engine lineup to comply with the stricter diesel emission requirements which went into effect on January 1, Some truck manufacturers switched to the C7 as early as the model year.

The engine was upgraded to meet the stricter emission requirements of January 1, Caterpillar stopped selling the C7 and the company's other on-highway truck engines at the end of The company elected not to try to meet the January 1, emission requirements.

The Cat C7 is an inline 6-cylinder diesel fueled engine. The displacement of the C7 is 7. Advanced emission solutions include a closed crankcase breather and a diesel particulate filter using Cat's proprietary regeneration system. The B50 life rating -- period to which 50 percent of engines had a major failure -- istomiles. The overall dimensions of a C7 engine are a length of The approximate dry weight is 1, lb. Engine oil capacity is 4.

Cooling system capacity -- engine only -- is 3. Cat C7 engines produced in or later require the use of ultra low sulphur diesel -- ULSD -- fuel. The Cat C7 was available with the following horsepower ratings:, and hp. Torque ratings ranged from up to lb-ft. Theand hp. The choice of torque options allowed different transmissions, which are rated by torque capacity, to be matched with the C7.

The through horsepower ratings were only available in RV and firetruck applications. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Specifications of a Caterpillar C-7 by Tim Plaehn.

Dimensions and Capacities The overall dimensions of a C7 engine are a length of Power Ratings The Cat C7 was available with the following horsepower ratings:, and hp.

caterpillar c7 regeneration problems

About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.Log in or Sign up. Find Trucking Jobs. Truck won't perform parked regen, trying to get home Discussion in ' Trucks [ Eighteen Wheelers ] ' started by DerovOct 24, Oct 24, 1.

As the title says, I'm broken down on my way home. I've spent the last 3 days fighting with my company over getting me home for an important doctor appointment on the 26th in NJ. From what I remember, this means I need to perform a parked regen. The truck refused to do a manual regen. I've tried everything I know to do: I've shifted into gear and back into neutral, deactivated and engaged the parking break, depressed the clutch twice and the brake pedal twice, and held the Regen switch for the required 5 seconds.

I've done this in various combinations all to no avail. I'm desperate. Freightliner Cascadia '11 Any tips, ideas, or help of any kind would be appreciated.

Caterpillar ARD head and regen problems

DerovOct 24, Yes, let employers and TruckersReport text me with new opportunities, job alerts and other career information to the number I provided. There is no charge for this service, but standard message and data rates may apply. Oct 24, 2. I feel your pain, did you try turning the key off for a couple of minutes and then restarting the truck. If the stop engine light is stuck on sounds like a tow truck might be in order.

And rebook your apt now. Cat sdpOct 24, Oct 24, 3. It looks like a tow might be our only option, and there's nothing around here so who knows where we'll end up. I tried a few days back to reschedule, but I won't be able to get in for another 3 weeks.

It really just pisses me off that I give 2 weeks notice as the company requires and the best they can do is a last minute race across the country under threat of quitting that leaves no room for delays, like this one. I wonder what would happen if I started listing my ETA to consignor as 'whenever it gets there'?

Oct 25, 4. Gonna have to take it to a shop and have it hooked to the computer usually when this happens the Dpf is plugged with soot or one of the sensors thinks it is. Oct 25, 5. Getsinyourblood Thanks this. Oct 25, 6. Oct 25, 7. If the Dpf becomes plugged or the pressure sensor fails and tells the ecm and the ecm can derate of it down depending on what its told you can try and unplug the main connection it will be right above the Dpf and try that it might get you home.

Oct 26, 8. If you can't get the exhaust temps hot enough, the truck will not regen under any circumstances. Is the truck being derated when the lights are on?

Good luck getting home my man SakoOct 26, The lawsuits also alleged Caterpillar knew about the problems. Lawsuits filed against Caterpillar claim that its year model ACERT C13 and C15 engines were defective and that the company concealed the information from Claims can be submitted here by March 20, For more information on the settlement, visit www.

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Lawsuits allege Caterpillar concealed defects in engines Lawsuits filed against Caterpillar claim that its year model ACERT C13 and C15 engines were defective and that the company concealed the information from More About: c13C15CatCaterpillarclass action settlementlawsuitlitigation. Top Stories Overdrive Extra. Overdrive Extra. There are 3 comments Cancel reply Your email address will not be published.

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CAT C7 Specs and Engine History

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By clicking 'I Accept', you are agreeing to our use of cookies. Need help finding a Cat dealer near you? Our dealer locator provides the most up-to-date information on Cat dealers close to you. Simply enter your address and select the type of equipment you're looking for. Or, if you already know the name of the dealer you're searching for, you can type in the dealer's name for a list of locations.

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caterpillar c7 regeneration problems

The latest standards require significant emission reductions of particulate matter PM and nitrogen oxides NOx. The latest regulation, Tier 4 Final, effectively requires an aftertreatment system to reduce emissions to compliance levels for all engines. Rental applications are commonly used in low load situations and there are opposing strategies for combining a diesel particulate filter DPF with a sophisticated regeneration process to meet these demands.

Caterpillar uses a proprietary active regeneration technology to maximize reliability and durability of the engine, while the competition adds a costly automatic load bank to the generator set. A DPF is a filtration system designed to reduce PM, including soot from the exhaust of a diesel engine.

A series of alternately blocked channels forces the exhaust gas to flow through the channel walls where the particulates are physically captured in the filter. During low load operation, a DPF will accumulate PM due to low exhaust temperatures resulting in increased back pressure on the engine. As backpressure increases, eventually the particulates must be removed from the DPF through a process known as regeneration. Manufacturers differ on the method of achieving these elevated exhaust temperatures.

Some manufacturers are electing to install an automatic load bank for generator sets operating with extended low or no-load run time. While the added load bank serves as additional load to heat up the generator set, it also adds unnecessary cost, weight and complexity to the operation.

In addition to the increased capital cost for the load bank, the operating cost immediately increases because the artificial load requires more fuel to be burned to maintain proper performance. Beyond the higher price tag, the supplemental load bank adds weight to each generator set. A heavier unit puts more pressure on the axles, tires and overall trailers, making it more arduous to transport on job sites.

The added load bank also requires more wiring, adding more complexity and opportunity for failures in each unit. Maintenance costs increase since the load bank, wiring, and control system must be inspected and maintained as part of the normal service routine as failure would cause DPF plugging. Furthermore, the load bank solution adds extra pressure to rental operations. Coordinators must plan which applications need generator sets with supplemental load banks.

Financial utilization is then negatively impacted as the rate is typically unchanged whether the machine has the extra expense of being load bank equipped or not. Caterpillar takes an alternative approach to comply with Tier 4 Final standards by using proprietary active regeneration technology.

By handling the regeneration processes internally with intelligent measurement of DPF soot level and on package thermal management, the high-speed system works without any interaction from the operator. This allows all Cat XQ rental generator sets fitted with DPF systems the flexibility to be used in any application and any environment. The CRS is a safe, computer controlled system utilizing a closed combustion chamber similar to gas-burning home furnaces. Regeneration will only take place when the system determines the soot in the DPF has reached a level where regeneration is required.

Then a small amount of diesel fuel is combusted upstream of the DPF, increasing the exhaust temperature to the point where the soot in the DPF will oxidize and be burned off. Ideal for low load and cold climate environments, the CRS provides precise measurement and control: reducing fuel burned during regeneration.

The CRS reduces overall fuel consumption with a simple, low cost and low maintenance solution. In addition to being featured on all Tier 4 rental products bKW and above for North America, the CRS is also included on select industrial engines and construction equipment. For more than 90 years, Caterpillar Inc. Customers turn to Caterpillar to help them develop infrastructure, energy and natural resource assets.Realtime Posts Downloads Chatbox.

What's New? Forgot Username? Remember Me? Results 1 to 8 of 8. Thread: Caterpillar regen tricks. Thread Tools Show Printable Version. Downloads 0 Uploads 0. Caterpillar regen tricks. Hello all, i started this thread to maybe get some tricks on reducing regen issues on the Cat line of engines.

I recently came back from a course where we were told that if the ECM see the intake air temp is at 'C or lower the CGI valve will stay shut, thus increasing power and decreasing excessive soot entering the DPF. The temp sensor is located on the inlet of the turbo, I am unsure of the resistance needed to trick the ECM as i havent had time to play with it yet.

Hope this info helps. I had one this week that kept shutting down due to needing a regen. I tried to do a manual filter cleaning with the cat software but it still kept shutting down due to the code being active.

Tried to clear the code but it requested a factory password - which I did not have access to. Ended up shipping it to the distributor. Thanks for the tip, I'll try that next time. Just a couple questions. I cant remember, is that temp sender a 2 or 3 wire sensor. Do you think any codes would come active if ecm seen a constant temp. Thats something that i want to play with too and if have any results ill be sure to post them.

Originally Posted by charliecooperston. Originally Posted by truckdoc. Originally Posted by han Originally Posted by optimum cetane. Hi, that code is a failed to ignite code, was there any other active events or codes?This site uses and sets "cookies" on your computer to help make this website better by keeping the site reliable and secure, personalizing content and ads, providing social media features, and analyzing how the site is used.

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Thread Rating: 30 Vote s - 3. Caterpillar ARD head and regen problems. Reputation: 0. I have been having numerous problems with the Caterpillar Regen systems lately. Especially the ARD heads on the C15 engines.

caterpillar c7 regeneration problems

We have the newer style heads installed in most of our engines however the ARD head nozzle heater shorts out. Does anyone know if getting just the ARD Head nozzle and heater assembly is possible without replacing the whole head? Reputation: I need your engine serial.

The heads aren't serviceable. I can probably look up the head and the parts to the head but I doubt they will be available. They would constantly short out or lose their grounds, etc etc. It just wasnt a great designed system - it was a afterthought.

A little mistake, they are C13s, but the heads and all I think are the same. The engine serial of one of them is LEE Thanks for all your replies. Gotta love CAT. Reputation: 1, I can only find it as an assembly. Here is the service letter media number SEBD Disregard the previous article, refer to the article that follows.

The Cat C7 Engine. Facts, Walk Around, Sensor Locations, and Maintenance. Know Your Engine.

The new improved Aftertreatment Regeneration Device ARD combustion head assembly incorporates a high strength material in the electrode to withstand high temperatures. The new ARD combustion head assembly is adaptable back to the first production of the listed engines. Copyright - Caterpillar Inc. All Rights Reserved. If my post was helpful please push the Thanks button or Rep button. Appreciate you looking it up.

Sounds normal. Hello to all forum and especially the questioner to resolve your problem ARD what I can advise my experience that I have worked with these engines EPA07 CAT sure you do not have any kind of leak in the exhaust gases STARTING system next to the motor head to the exit of DPF that is useless if you replace the ARD head when in the exhaust system you have much problem because what happens when leaks head strives to reach high temperatures which are not possible.

Head part number is


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