When does a cat C7 lose its power?
My C7 has plenty of power until the engine temp reaches 150 degrees. Then it experiences the power loss. Runs like a bat out hell until it comes out of cold mode.
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Why is my cat C7 in cold mode?
Somethings going on when it come out of cold mode. You most likely need a set of injectors. If your high pressure pump was replaced due to failure, then it may have contaminated the injectors. The injector map is in cold mode (rich) until 165 deg.
What do you need to know about Catman AP?
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What kind of pump does a C7 engine use?
Just a thought! The early C7 engines were HEUI. They also had the fairly early version of the HEP HEUI pump, and were prone to breaking springs on the delivery valves of the high pressure pump. Your symptoms sound about right for a HEUI pump problem.
What kind of engine does a C7 HEUI have?
C7 HEUI engines were notorious for the hp oil pump bearing and pistons failing and passing metal in the HP Oil system and wiping out injectors and huei pump.
What’s the problem with the cat 3126 engine?
Heres the problem….
What are the most common LLY Duramax engine problems?
The 6 Most Common LLY Duramax Problems. 1 1. LLY Bent Rods. While the LLY made competitive performance numbers back in 2004, the engine is certainly not competitive to the modern day diesels. 2 2. Head Gasket Failure – LLY Duramax. 3 3. EGR Valve Failure. 4 4. Glow Plug Failue – 2006 LLY Duramax. 5 5. Overheating in Pre-2006 Models.
How to diagnose power loss in an ECM?
It helps to further diagnose power problems. Most ECMs have more than one power wire. You may just have to run the engine and then grab and start shaking the wire harnesses to the ECM to see if you can induce the problem and find the problem area.
Why does my ECM keep blowing out on my truck?
Driver went in pick up the truck it was running fine, after he was hooked to the trailer, truck stalled again, they took him back in the shop and came back telling me that ECM is blown because of corroded wire. my question is, why would truck start at and runs fine for the first time when he just fixed it with fuses and partial power wire to ECM.
When was the Caterpillar C7 diesel engine made?
The Caterpillar C7 Engine was produced from 2003 – 2009 and was originally touted to be the greatest CAT Engine ever made. However, things don’t always go according to plan. Read about the history and technical specs of this legacy engine. Looking for remanufactured diesel engine parts?
What to do if your cat engine is not working?
If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).
How does cold weather affect a Caterpillar engine?
Make sure that the fuel meets the requirements of Special Publication, SEBU6250, “Caterpillar Machine Fluids Recommendations “. Cold weather adversely affects the characteristics of the fuel. Refer to the Operation and Maintenance Manual for information on improving the characteristics of the fuel during cold-weather operation.
What happens when you hit the brakes on a 2001 cat 3126B?
My 2001 3126B shuts down when I hit the brakes hard. It has done this at 35 MPH and at a coast in the shop. Feels like an electrical/electronic shutdown as it is instantaneous. Does not loose power it just shuts down. Starts right back up and runs fine but don’t give it a hard brake because it will shutdown.
What is the fuel delivery system on a cat C7?
The fuel delivery system on the CAT C7 is hydraulic electronically controlled unit injectors for the mid horsepower models and mechanically actuated and electronically controlled on the higher horsepower models. Both systems are metered and timed to inject multiple bursts of fuel to create a more efficient combustion cycle.
What are the issues with the cat C7 ACERT engine?
The ACERT technology was prone to numerous regeneration issues. Drivers reported low power and low fuel economy. It was common that the CAT C7 ACERT engines would experience overheating when driving up an incline. The cooling fan does not kick in until 235 degrees Fahrenheit while many drivers reported overheating at 200 degrees Fahrenheit.
What kind of valve actuation does cat C7 use?
Within the design of the C7, the turbos use variable geometry valve actuation controlled by the ECM to adjust the perfect amount of airflow into the combustion chamber. This variable valve actuation also allows for the CAT C7 to offer an integral jake brake on two of the heavy duty diesel horsepower models.
What kind of engine is a cat 7.2?
One of the engines Cat manufactures is the 7.2 liter C7 engine. The two versions of this engine are: the 2004 EPA (EPA 04) compliant and the 2007 EPA (EPA 07) compliant model
When to install cat C7 diesel performance chips?
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Why is my wastegate not working on my Cat C7?
The engine ran great, but the only problem is when turbo boost pressure got up to 25 psi the check engine light would come on for turbo boost pressure current low, which means the ecm was trying to send out voltage to a smart wastegate turbo actuator (solenoid) that’s not installed on Cat C7 WAX engines 250 HP and lower.
What’s the max HP for a cat C7?
Technically, the engine you have is only designed for a max rating of 250/660. The injectors in it are 241-3239. The injector number for the High-HP ratings is 238-8091. I’ve never used a High-HP file in a Mid-HP C7, so I can’t say if you’ll damage the engine or not
When did Caterpillar C7 engine go into effect?
The stricter Tier 4 emissions requirements went into effect January 1, 2004. The Caterpillar C7 was released in 2003, only months ahead of the Tier 4 ratings change, and replaced the popular 3126 model. Older CAT engines like the 3116 or 3126 were essentially grandfathered into the older tier rating requirements and did not need to be upgraded.
What are the connecting rods on a Caterpillar C7 ACERT?
The connecting rods in the Caterpillar C7 ACERT are not forged, liked the CAT 3126, but consist of powdered metal with a fractured cap design. There are also various sizes and configuration of the connecting rods depending on the piston used in the engine.