Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Bravo Factory Service Manual (2007-2014)22 · Fault diagnosis
22 · Diagnostics

Engine rumbling

Make
Fiat
Model
Bravo Factory Service Manual
Year
2007–2014
Section
Noise / vibrations › Engine rumbling
Fault diagnosisEngine rumbling

ENGINE RUMBLING

There is a low frequency noise coming from the engine, which varies in intensity with the rpm.

TEST RESULTS
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
Carry out a road test to check the conditions in which the noise occursMove on to Step 1

1. The noise is heard when braking

2. The noise is heard when steering

1. Move on to Step 1

2. Move on to Step 3

1BRAKE SERVO VACUUM VALVE CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the condition of the one-way valve on the brake servo vacuum pipeMove on to Step 2Brake servo valve fault

Replace the brake servo valve

Op. 3330D20 SINGLE-ACTING VALVE FOR BRAKE SERVO - R+R

2HYDRAULICALLY ASSISTED STEERING PUMP CHECKALL OKPROBLEMS ENCOUNTEREDACTION
With the engine running, turn the steering wheel to the end of travel in both directionsEnd of diagnosisPump noise

Replace hydraulically assisted steering pump

Op. 4110D20 STEERING ELECTRICAL CONTROL DEVICE - R R

Parts & tools for this job For 2007 Fiat Bravo

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.