Why does my car revs by itself in park?
The idle is controlled by the idle air control valve and if it cannot keep the engine idling it will keep trying to rev the engine up to compensate. A vacuum leak, sensor that has failed, or an EGR system malfunction could potentially be the cause of the erratic engine you’re experiencing.
How many horsepower does a CAT C7 have?
CAT C7 Engine Specs and Technical Data
| Engine Spec | Engine Data |
|---|---|
| Minimum Power | 225 hp, 520 lbs-ft torque |
| Maximum Power | 300 hp, 925 lbs-ft torque |
| RPMs | 1800-2200 RPMs |
| Emissions Ratings | U.S. EPA Tier 3 Equivalent, China Stage II, EU Stage IIIA Equivalent |
What was the problem with the Caterpillar CAT C7 engine?
The ACERT Technology had a lot of problems for Caterpillar, first with the CAT C7 but more so later on with the CAT 13 and CAT 15 engines. The technology was really the first generation emissions technology for heavy duty diesel engines. The ACERT technology was prone to numerous regeneration issues. Drivers reported low power and low fuel economy.
Why is my C7 ACERT cat hard to start?
The bottom sensor is the primary crank sensor. When it fails, the engine can be hard to start. By shooting in the engine, the RPM elevates high enough and the primary running sensor picks up the signal and the engine runs. Let me know if you need more help or have more questions. Experience: 23 Years Caterpillar Engine experience.
What’s the life expectancy of a cat C7 engine?
B10 is the average life expectancy of an engine measured in miles where 10% of the produced engines failed and needed a major overhaul. Consequently, B50 is the average miles where 50% of the engines failed. With the CAT C7 the B50 rating of 450,000-500,000 miles.
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.