Acura RL. Manual - part 358

Brakes Pull Left or Right

Incorrect tire pressure

Inflate tires to proper pressure

Front end out of alignment

See WHEEL ALIGNMENT

Mismatched tires

Check tires sizes

Restricted brake lines or hoses

Check hose routing

Loose or malfunctioning caliper

See DISC BRAKES or 

BRAKE SYSTEM

Bent shoe or oily linings

See DRUM BRAKES or 

BRAKE SYSTEM

Malfunctioning rear brakes

See DRUM, DISC BRAKES 

or BRAKE SYSTEM

Loose suspension parts

See SUSPENSION

Noises Without Brakes Applied

Front linings worn out

Replace linings

Dust or oil on drums or rotors

See DRUM, DISC BRAKES 

or BRAKE SYSTEM

Noises With Brakes Applied

Insulator on outboard shoe damaged

See DISC BRAKES or 

BRAKE SYSTEM

Incorrect pads or linings

Replace pads or linings

Brake Rough, Chatters or Pulsates

Excessive lateral runout

Check rotor runout

Parallelism not to specifications

Reface or replace rotor

Wheel bearings not adjusted

See SUSPENSION

Rear drums out-of-round

Reface or replace drums

Disc pad reversed, steel against rotor

Remove and reinstall pad

Excessive Pedal Effort

Malfunctioning power unit

See POWER BRAKES or 

BRAKE SYSTEM

Partial system failure

Check fluid and pipes

Worn disc pad or lining

Replace pad or lining

Caliper piston stuck or sluggish

See DISC BRAKES or 

BRAKE SYSTEM

Master cylinder piston stuck

See MASTER CYLINDERS 

or BRAKE SYSTEM

Brake fade due to incorrect pads for linings

Replace pads or linings

Linings or pads glazed

Replace pads or linings

Worn drums

Reface or replace drums

Excessive Pedal Travel

Partial brake system failure

Check fluid and pipes

Insufficient fluid in master cylinder

See MASTER CYLINDERS 

or BRAKE SYSTEM

Air trapped in system

See BRAKE BLEEDING or 

BRAKE SYSTEM

Rear brakes not adjusted

See Adjustments in DRUM 

 

2007 Acura RL 

GENERAL INFORMATION Trouble Shooting - Basic Procedures

  

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© 2005 Mitchell Repair Information Company, LLC. 

ENGINE MECHANICAL 

BRAKES or BRAKE 

SYSTEM

Bent shoe or lining

See DRUM BRAKES or 

BRAKE SYSTEM

Plugged master cylinder cap

See MASTER CYLINDERS 

or BRAKE SYSTEM

Improper brake fluid

Replace brake fluid

Pedal Travel Decreasing

Compensating port plugged

See MASTER CYLINDERS 

or BRAKE SYSTEM

Swollen cup in master cylinder

See MASTER CYLINDERS 

or BRAKE SYSTEM

Master cylinder piston not returning

See MASTER CYLINDERS 

or BRAKE SYSTEM

Weak shoe retracting springs

See DRUM BRAKES 

BRAKE SYSTEM

Wheel cylinder piston sticking

See DRUM BRAKES or 

BRAKE SYSTEM

Dragging Brakes

Master cylinder pistons not returning

See MASTER CYLINDERS 

BRAKE SYSTEM

Restricted brake lines or hoses

Check line routing

Incorrect parking brake adjustment

See DRUM BRAKES 

BRAKE SYSTEM

Parking Brake cables frozen

See DRUM BRAKES 

BRAKE SYSTEM

Incorrect installation of inboard disc pad

Remove and replace correctly

Power booster output rod too long

See POWER BRAKE UNITS 

BRAKE SYSTEM

Brake pedal not returning freely

See DISC, DRUM BRAKES 

BRAKE SYSTEM

Brakes Grab or Uneven Braking Action

Malfunction of combination valve

See CONTROL VALVE or 

BRAKE SYSTEM

Malfunction of power brake unit

See POWER BRAKE UNITS 

or BRAKE SYSTEM

Binding brake pedal

See DISC, DRUM BRAKES 

or BRAKE SYSTEM

Pulsation or Roughness

Uneven pad wear caused by caliper

See DISC BRAKES or 

BRAKE SYSTEM

Uneven rotor wear

See DISC BRAKES or 

BRAKE SYSTEM

Drums out-of-round

Reface or replace drums

 

2007 Acura RL 

GENERAL INFORMATION Trouble Shooting - Basic Procedures

  

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Page 12 

© 2005 Mitchell Repair Information Company, LLC. 

COOLING SYSTEM TROUBLE SHOOTING

COOLING SYSTEM TROUBLE SHOOTING 

GASOLINE ENGINE - MECHANICAL TROUBLE SHOOTING 

NOTE:

This is GENERAL information. This article is not intended to be specific to 
any unique situation or individual vehicle configuration. The purpose of this 
Trouble Shooting information is to provide a list of common causes to 
problem symptoms. For model-specific Trouble Shooting, refer to SUBJECT, 
DIAGNOSTIC, or TESTING articles available in the section(s) you are 
accessing.

CONDITION & POSSIBLE CAUSE

CORRECTION

Overheating

Coolant Leak

Fill/Pressure Test System

A/C Condenser Fins Clogged

Remove/Clean Condenser

Radiator Fins Clogged

Remove/Clean Radiator

Thermostat Stuck Closed

Replace Thermostat

Clogged Cooling System Passages

Clean/Flush Cooling System

Water Pump Malfunction

Replace Water Pump

Fan Clutch Malfunction

Replace Fan Clutch

Retarded Ignition Timing

Reset Ignition Timing

Cooling Fan Malfunction

Test Cooling Fan/Circuit

Cooling Fan Motor Malfunction

Test Fan Motor

Cooling Fan Relay Malfunction

Test Fan Relay

Faulty Radiator Cap

Replace Radiator Cap

Broken/Slipping Fan Belt

Replace Fan Belt

Restricted Exhaust

Repair Exhaust System

Corrosion

Impurities In Coolant

Clean/Flush System

Coolant Leakage

Damaged hose

Replace Hose

Leaky Water Pump

Replace Water Pump

Damaged Radiator Seam

Replace/Repair Radiator

Leaky Thermostat Cover

Replace Thermostat Cover

Cylinder Head Problem

Check Head/Head Gasket

Leaky Freeze Plugs

Replace Freeze Plugs

Recovery System Inoperative

Loose and/or Defective Radiator Cap

Replace Radiator Cap

Overflow Tube Clogged and/or Leaking

Repair Tube

Recovery Bottle Vent Restricted

Clean Vent

No Heater Core Flow

Collapsed Heater Hose

Replace Heater Hose

Plugged Heater Core

Clean/Replace Heater Core

Faulty Heater Valve

Replace Heater Valve

 

2007 Acura RL 

GENERAL INFORMATION Trouble Shooting - Basic Procedures

  

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Page 13 

© 2005 Mitchell Repair Information Company, LLC. 

BASIC GASOLINE ENGINE - MECHANICAL TROUBLE SHOOTING CHART 

NOTE:

This is GENERAL information. This article is not intended to be specific to 
any unique situation or individual vehicle configuration. The purpose of this 
Trouble Shooting information is to provide a list of common causes to 
problem symptoms. For model-specific Trouble Shooting, refer to SUBJECT, 
DIAGNOSTIC, or TESTING articles available in the section(s) you are 
accessing.

CONDITION & POSSIBLE CAUSE

CORRECTION

Engine Lopes At Idle

Intake manifold-to-head leaks

Replace manifold gasket, See 

ENGINES

Blown head gasket

Replace head gasket, See 

ENGINES

Worn timing gears, chain or sprocket

Replace gears, chain or 

sprocket

Worn camshaft lobes

Replace camshaft, See 

ENGINES

Overheated engine

Check cooling system, See 

COOLING

Blocked crankcase vent valve

Remove restriction

Leaking EGR valve

Repair leak and/or replace 

valve

Faulty fuel pump

Replace fuel pump

Engine Has Low Power

Leaking fuel pump

Repair leak and/or replace 

fuel pump

Excessive piston-to-bore clearance

Install larger pistons, See 

ENGINES

Sticking valves or weak valve springs

Check valve train 

components, See ENGINES

Incorrect valve timing

Reset valve timing, See 

ENGINES

Worn camshaft lobes

Replace camshaft, See 

ENGINES

Blown head gasket

Replace head gasket. See 

ENGINES.

Clutch slipping

Adjust pedal and/or replace 

components, See ENGINES

Engine overheating

Check cooling system, See 

COOLING

Auto. Trans. pressure regulator valve faulty

Replace pressure regulator 

valve

Auto. Trans. fluid level too low

Add fluid as necessary

Improper vacuum diverter valve operation

Replace vacuum diverter 

valve

Vacuum leaks

Inspect vacuum system and 

 

2007 Acura RL 

GENERAL INFORMATION Trouble Shooting - Basic Procedures

  

me 

 

Friday, June 05, 2009 2:26:48 PM

Page 14 

© 2005 Mitchell Repair Information Company, LLC.