P0991 DTC For Fiat V8

Fiat V8 Engine Specifications:
Engine Type :Multi-Cylinder Engine
Cylinder Type :W-Type Engine
Engine Air Intake Process :Naturally Aspirated

Your Fiat V8 engine control system detects a problem, the computer stores the diagnostic trouble code P0991 in its memory. To figure out what is wrong with your vehicle you must first extract the P0991 DTC For Fiat V8.

To solve P0991 Fiat V8 problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

P0991 Fiat V8 DTC Meaning

P Powertrain Code - Problem is related engine, transmission and emissions systems.
0 SAE - Generic
9 Transmission
9 TP Sensor Learn Not Complete
1 PCM Stack Overrun

There are currently two main types of cylinder deactivation used today, depending on the type of engine. P0991 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.

P0990 DTC (Previous DTC Code) ( Next DTC Code ) P0992 DTC
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