Mitsubishi Montero (1991+). Manual - part 147

 

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Mitsubishi Montero (1991+). Manual - part 147

 

 

required because the part in question is no longer providing the

function for which it is intended, does not meet a vehicle

manufacturer’s design specification or is missing.

         Example:

         An exhaust pipe has corroded severely and has a hole in it

         through which exhaust gases are leaking.  Replacement of the

         exhaust pipe in this case is required due to functional

         failure.

         Example:

         A brake rotor has been worn to the point where it measures

         less than the vehicle manufacturer’s discard specifications.

         Replacement of the rotor is required because it does not meet

         design specifications.

         Some conditions indicate that a service or part replacement

is suggested because the part is close to the end of its useful life

or addresses a customer’s need, convenience or request. If a

customer’s vehicle has one of these conditions, the procedure may be

only to suggest service.

         Example:

         An exhaust pipe is rusted, corroded or weak, but no leaks are

         present. In this case, the exhaust pipe has not failed.

         However, there is evidence that the pipe may need replacement

         in the near future. Replacement of the pipe may be suggested

         for the customer’s convenience in avoiding a future problem.

         Example:

         The customer desires improved ride and/or handling,

         but the vehicle’s shocks or struts have not failed. In this

         case, replacement may be suggested to satisfy the customer’s

         wishes. In this case, replacement of the shocks or struts may

         not be sold as a requirement.

         A customer, of course, has the choice of whether or not a

shop will service his or her vehicle. He or she may decide not to

follow some of your suggestions. When a repair is required, a MAP shop

must refuse partial service on that system if, in the judgment of the

service provider, proceeding with the work could create or continue an

unsafe condition.  When a procedure states that required or suggested

repair or replacement is recommended, the customer must be informed of

the generally acceptable repair/replacement options whether or not

performed by the shop.

         When presenting suggested repairs to the customer, you must

present the facts, allowing the customer to draw their own conclusions

and make an informed decision about how to proceed.

         The following reasons may be used for required and suggested

services. These codes are shown in the "Code" column of the MAP

Uniform Inspection & Communications Standards that follow:

         Reasons to Require Repair or Replacement

         A - Part no longer performs intended purpose

         B - Part does not meet a design specification (regardless of

             performance)

         C - Part is missing

NOTE:    When a repair is required, the shop must refuse partial

         service to the system in question, if the repair creates

         or continues an unsafe condition.

         Reasons to Suggest Repair or Replacement

         1 - Part is close to the end of its useful life (just above

             discard specifications, or weak; failure likely to occur

             soon, etc.)

         2 - To address a customer need, convenience, or request (to

             stiffen ride, enhance performance, eliminate noise,

             etc.)

         3 - To comply with maintenance recommended by the vehicle’s

             Original Equipment Manufacturer (OEM)

         4 - Technician’s recommendation based on substantial and

             informed experience

NOTE:    Suggested services are always optional. When presenting

         suggested repairs to the customer, you must present

         the facts, allowing the customer to draw their own

         conclusions and make an informed decision about how to

         proceed.

         EXHAUST

         SERVICE PROCEDURES REQUIRED AND SUGGESTED FOR PROPER

         VEHICLE OPERATION

WARNING: Federal EPA rules prohibit altering an exhaust system in

         any way that defeats the emission reduction components of a

         vehicle. Be sure to review and adhere to EPA policy on

         removing and replacing catalytic converters. Where state or

         local laws are stricter, they take precedence over these

         guidelines.

NOTE:    Some exhaust systems are of a welded design. It is not

         required that the entire system be replaced. Determine the

         need to replace individual components based on conditions of

         component.

         CATALYTIC CONVERTERS

CAUTION: Before working on an exhaust system, review EPA

         regulations on removing and replacing catalytic converters.

NOTE:    Any time a converter has failed, further diagnosis is

         required to determine the reason(s) for converter failure.

CATALYTIC CONVERTER INSPECTION



Condition                 Code                          Procedure

Air injection tube

 broken  .................  A  ...  Require repair or replacement

                                             of injection tube or

                                         replacement of catalytic

                                                       converter.

Air injection tube

 burnt  ..................  A  ...  Require repair or replacement

                                             of injection tube or

                                         replacement of catalytic

                                                       converter.

Air injection tube

 leaking  ................  A  ...  Require repair or replacement

                                             of injection tube or

                                         replacement of catalytic

                                                       converter.

Air injection tube

 loose  ..................  A  ...  Require repair or replacement

                                             of injection tube or

                                         replacement of catalytic

                                                       converter.

Air injection tube

 restricted  .............  A  ...  Require repair or replacement

                                             of injection tube or

                                         replacement of catalytic

                                                       converter.

Air injection tube

 threads damaged  ........  A  ...  Require repair or replacement

                                             of injection tube or

                                         replacement of catalytic

                                                       converter.

Air injection tube

 threads stripped

 (threads missing)  ......  A  ...  Require repair or replacement

                                             of injection tube or

                                         replacement of catalytic

                                                       converter.

Body cracked  ............  B  ..  Require repair or replacement.

Converter empty  .........  A  ..  Require repair or replacement.

Converter fill plug

 missing  ................  C  ..  Require repair or replacement.

Converter missing  .......  C  ............  Require replacement.

Exhaust gases leaking  ...  A  ..  Require repair or replacement.

Flanges leaking  .........  A  ...  Require repair or replacement

                                                      of flanges.

Inlet pipes cracked  .....  B  ..  Require repair or replacement.

Internal rattle (except

 pellet-type)  ...........  2  ..........  ( 1) Further inspection

                                                        required.

Mounting brackets that

 are part of converter

 broken  .................  A  ..  Require repair or replacement.

Obvious overheating  .....  ..  .........  ( 2) Require testing of

                                                       converter.

Outlet pipes cracked  ....  B  ..  Require repair or replacement.

Pieces of catalyst

 material found

 downstream  .............  1  ............  Suggest replacement.

Plugged  .................  A  ........  (3) Require replacement.

Testing has determined

 that existing converter

 has been lead-poisoned,

 contaminated, or failed

 testing  ................  A  ..  Require repair or replacement.

(1) - If the converter is breaking up, suggest converter

      replacement. If an object has fallen into the converter,

      remove the object.

(2) - Overheating is caused by something other than the

      converter. Further diagnosis is required to determine

      the cause of the overheating.

(3) - Determine cause and correct to ensure that new converter

      will not become plugged.



         EXHAUST AND TAIL PIPES

NOTE:    For pipes with resonators, also see  MUFFLERS AND RESONATORS.

EXHAUST AND TAIL PIPE INSPECTION



Condition                 Code                          Procedure

Bracket broken  ..........  A  ..  Require repair or replacement.

Pipe bent out of

 position  ...............  B  ..  Require repair or replacement.

Pipe broken  .............  A  ..  Require repair or replacement.

Pipe cracked  ............  B  ..  Require repair or replacement.

Pipe leaking  ............  A  ............  Require replacement.

Pipe missing  ............  C  ............  Require replacement.

Pipe plugged  ............  A  ............  Require replacement.

Pipe weak due to

corrosion, but no leaks

 present  ................  1  ............  Suggest replacement.

Weld broken  .............  A  ..  Require repair or replacement.



         EXHAUST CONNECTIONS

EXHAUST CONNECTION INSPECTION



Condition                 Code                          Procedure

Attaching hardware

 incorrect  ..............  B  .........  Require replacement of

                                                       hardware.

Clamp broken  ............  A  ...........  Require replacement.

Clamp loose  .............  A  .  Require repair or replacement.

Clamp missing  ...........  C  ...........  Require replacement.

Corroded, affecting

 structural integrity  ...  1  ...........  Suggest replacement.

Incorrect type (i.e.

 flange, ball & socket

 etc.)  ..................  B  ...........  Require replacement.

Leaking  .................  A  ................  Require repair.

Loose  ...................  A  ................  Require repair.



         HANGERS

HANGER INSPECTION



Condition                 Code                          Procedure

Broken  ..................  A  ............  Require replacement.

Corroded, affecting

 structural integrity  ...  1  ............  Suggest replacement.

Incorrect type  ..........  B  ............  Require replacement.

Loose  ...................  A  ..  Require repair or replacement.

Missing  .................  C  ............  Require replacement.

Out of position  .........  B  ..  Require repair or replacement.

Rubber deteriorated  .....  1  ............  Suggest replacement.



         HEAT RISERS (MECHANICAL EFE DEVICES)

HEAT RISER (MECHANICAL EFE DEVICE) INSPECTION



Condition                 Code                          Procedure

Broken  ..................  A  ..........  Require replacement of

                                                  affected parts.

Diaphragm inoperative  ...  A  ........  (1) Require replacement.

 

 

 

 

 

 

 

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