Truck Engine Fault
Engine performance and reliability are concerns and engine problems are bigger than others, the vast majority can be avoided by regularly taking care of maintenance issues.
Diagnosing a fault with your engine is not always easy and it can be even harder to repair. If you believe that your engine is struggling or, worse still, failing, make sure you take a look at the nine most common issues relating to car engine failures below. Not all engine problems are serious and can be remedied relatively quickly, but all of them can cause engine breakdowns and, in the worst-case scenarios, require a brand-new engine.
We listed all truck brands with engine failure codes. Before that we shows common engine problems,causes and symptoms.
WARNINGS AND INDICATORS ON TRUCK PANEL
- Engine overheat
- Reduce coolant temp
- DEF level low
- Re-Fill DEF Tank
- DEF tank near empty
- Engine is derated Re-Fill DEF tank
- DEF tank is empty
- Before Re-Fueling Re-Fill DEF tank
- Reduce engine revolution
- Charging system error
- Check generator belt
- Engine oil pressure is low
- Engine oil temp too high
- Reduce engine oil temperature
- Engine system malfunction
- Communication line error
- DEF tank is empty
- Vehicle speed limited Re-Fill DEF tank
- Insufficient DEF quality or failure
- Engine is derated
- Vehicle electrical system malfunction
- PTO is in operation
- Starter overheat
- Transmission oil temp too high
- ATM system error
- DPF is regenerating
- Auto engine shut down
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Common Engine Problems List :
When you face a problem with your truck before go to service please view our common engine problems list, this will help your budget and time.Problems :
- Failure of Engine to Start
- Low Power and Uneven Running
- High Oil Temperature
- Excess Oil Consumption
- Low Oil Pressure
- High Oil Pressure
- Improper Engine Acceleration
- Failure of Engine to Idle Properly
- Engine Stops
- Engine Vibrates Excessively
- Engine Continually Throws Alternator Belt
- Engine Overheats
- High Cylinder Head Temperature
- Engine Won’t Stop When Switch is Turned Off
- Carburetor Leaks Fuel
- Engine Spits Back in Carburetor
- Engine Misses Intermittently
- Engine Misses Regularly
- Scattering Misfire
- Single Cylinder Miss at High Speed
- Single Cylinder Miss at Low Speed
- Causes of Pre‐Ignition
- Causes of Excessive Carbon Deposit
- Magneto Fails to Deliver any Spark
- Crankcase Fills with Oil (Dry‐sump System)
- Engine Pumps Oil
- Faulty Spark
- Mixture Analysis by Exhaust Flame
- Too‐Rich Mixture
- Too‐Lean Mixture
Engine Error Abbreviations
|AP||Accelerator position sensor|
Along with other variables, the ECM uses the AP signal to determine injector oil-pressure, pulse width and timing. Supply 5.0V +/_ 0.5V, signal 0.5-0.7V at idle, 4.5V at wide open throttle.
|BARO|| Barometric pressure sensor|
The ECM uses the BARO signal to adjust fuel timing, fuel quantity, and glow-plug on-time during high altitude operation. Supply 5.0V +/_ 0.5V, signal 4.6V at sea level, decreasing at higher altitudes.
|CMP||Camshaft position sensor|
The ECM uses the CMP signal to monitor engine rpm and tdc for Nos. 1 and 4 cylinders. This Hall-effect sensor generates a digital voltage signal of 12.0V high, 1.5V low.
|DTC||Diagnostic trouble code|
|EBP||Exhaust back pressure sensor|
The ECM uses the EBP signal to control the exhaust pressure regulator (EPR). Supply 5.0V +/_ 0.5V, signal 0.8-1.0V @ 14.7 psi at idle, increasing with engine speed and load, decreasing with altitude.
|EOT||Engine oil temperature sensor|
The ECM uses the EOT signal to control glow-plug on time, EPR, idle rpm and fuel delivery and timing. Supply 5.0V +/_ 0.5V, signal 4.37V @ 32 F, 1.37V @ 176 F, 0.96V @ 205 F.
|EPR||Exhaust back pressure regulator|
The EPR operates hydraulically from oil taken off the turbocharger pedestal mount. When intake air temperature is less than 37 F (50 F on some models) and the engine oil temperature is less than 140 F (168 F on some models) the ECM energizes a solenoid valve that causes oil pressure to close a butterfly at the turbo exhaust outlet. The valve opens under load and as the engine warms.
|GPC|| Glow plug control|
The ECM energizes the GPC relay for 10-120 seconds depending on engine oil temperature and barometric pressure.
|IAT||Intake air temperature sensor The ECM uses the IAT signal to regulate exhaust backpressure. Supply 5 V+/_ 0.5V, signal 3.90V @ 32 F, 3.09V @ 68 F, 1.72V @ 122 F.|
|IPC|| Injection pressure control sensor|
The ECM uses the IPC signal to match fuel delivery with load and to stabilize idle rpm. Signal 1.00V @ 580 psi, 3.22V @ 2520 psi.
|IDM||Injector driver module|
The IDM receives cylinder-identification and fuel-demand signals from the ECM, and generates a 115 VDC, 10A signal for the appropriate injector, varying pulse width as required
|IPR||Injection pressure regulator|
The ECM varies the duty cycle of the IPR to control oil pressure and the volume of fuel delivered. 0% full return to sump (open valve), 100% full flow to injectors (closed valve). Functioning is monitored by the Injector pressure control sensor.
|IVS|| Idle validation switch|
The IVS is an on-off switch that signals the ECM when the engine is idling. Signal 0V at idle, 12V off-idle
|MAP||Manifold absolute pressure sensor|
The MAP measures manifold pressure to limit turbo boost, optimize timing, and reduce over-fueling and smoke. Signal frequency: 111 Hz @ 14.7 psi, 130 Hz @ 20 psi, 167 Hz @ 30 psi.
|MIL|| Malfunction indicator lamp|
Check engine or service engine lamp that the ECM illuminates when certain system faults are present. Can also be used to retrieve trouble codes.
|PCM||Powertrain control module|
PCM is the onboard computer that receives sensor inputs, calculates output signals to actuators, and generates diagnostic codes. The computer also controls transmission shift points, anti-skid braking, and other powertrain functions. Referred to in this text as the ECM.
PID, or the data stream, is the sensor data read by scan tools.
Engine Mechanics Problems
|Overheating||Clogged, restricted, sealed cooling system|
Defective thermostat or shutters
Loss of coolant
|Lubrication failure||Worn main bearings|
Oil pump failure
Engine lugging under load
Fuel wash on upper-cylinder bores
Water in oil
Low oil Level
Failure pressurize oil system after rebuild
|Wrong cylinder finish|| Low crosshatch finish|
Failure to hone after reboring
|Insufficient clearance|| Inadequate bearing clearance at either end of the rod|
Improper ring size
Cylinder sleeve distortion
Common Engine Overheating Problems
|Low coolant level||External leaks at hoses, radiator, and radiator cap|
Internal leaks at head gasket, cylinder head, aftercooler, torque-converter cooler, etc.
|Low heat transfer||Clogged radiator|
Scale accumulations in water jacket
Marine growth on keel cooler or insufficient flow of raw water through heat exchanger
|Insufficient coolant flow||Thermostat stuck closed|
Loose water-pump belts
Clogged radiator core
|Insufficient coolant pressure||Failed radiator pressure cap|
Failed coolant-pressure relief valve (when fitted)
|Coolant overflow||Combustion gases entering system-loose or cracked
cylinder head, leaks at head gasket, precombustion
chamber, cylinder liner|
Entrapped air in cooling system
|Insufficient air flow through||Low or no fan speed - electric or hydraulic fan drive failure,
radiator loose belts, worn pulleys|
Fan installed backwards
Shutter not opening
Shrouding not installed properly
|High inlet air temperature or restriction|| Clogged air cleaner|
|Exhaust restriction||Turbocharger failure|
Water in muffler or loose muffler baffle
Clogged particulate trap/catalytic converter (when fitted)
CAT Engine Fault Codes And Descriptions :
Cat diagnostic code information that follows is utilized by Caterpillar machines that are equipped with Caterpillar electronic controls.Component identifiers, failure mode identifiers, and module identifiers are pieces of information that assist service personnel in diagnosing system problems of the machine.CAT Fault Codes