U3981 DTC For Fiat V8
Fiat V8 Engine Specifications:
| Engine Type : | Multi-Cylinder Engine |
| Cylinder Type : | W-Type Engine |
| Engine Air Intake Process : | Turbocharged Engine |
Your Fiat V8 engine control system detects a problem, the computer stores the diagnostic trouble
code U3981 in its memory.
To figure out what is wrong with your vehicle you must first extract the U3981 DTC For Fiat V8.
Another consequence of U3981 Fiat V8 engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.
U3981 Fiat V8 DTC Meaning
| U |
Network Code - Problem is climate control system, lighting, airbags, etc. |
| 3 |
SAE - Generic |
| 9 |
Transmission |
| 8 |
Crankshaft Position Sensor Circuit Performance |
| 1 |
PCM Stack Overrun |
There are currently two main types of cylinder deactivation used today, depending on the type of engine. U3981 Fiat V8 code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.
You can also check other Fiat car models :
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The listed Fiat models will give information about U3981 DTC.
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