These pages are the work of Mike 94PGT and are mirrored here as a service to the probe and mx6 community.

The page deals with typical maintenance, capacities and other related data as they apply to the 2.0L and 2.5L MTX and ATX Probe and MX-6.

What's in here?

·         Quick Tune-up Specifications


DISCLAIMER: The information presented on these pages was obtained from several sources including the 1993 Ford Probe Service Manual, the 1994 Mazda MX-6/626 Service Manual and even a Chiltons 1992-1996 Auto Repair Manual. Every reasonable effort has been made to ensure the accuracy of the data presented here. However, this data should be used for reference only and not purely for servicing your vehicle. Always consult proper shop manuals, owners manuals etc when performing service on your own car.


Quick Tune-Up Specifications

 

Description

Specification

Brakes

Engine Model

2.0L (FS)

2.5L (KL)

Front Disk Brake Pad Minimum Thickness

0.040" (1mm)

Front Rotor Minimum Thickness

0.860" (22mm)

Rear Disk Brake Pad Minimum Thickness

0.040" (1mm)

Rear Rotor Minimum Thickness

0.315" (8mm)

Rear Brake Shoe Minimum Thickness

0.040" (1mm)

Rear Brake Drum Maximum Diameter

9.06" (230.1mm)

Brake Pedal Free Height

7.54" - 7.74" (191.5mm - 196.5mm)

Brake Pedal Free Travel

0.160" - 0.470" (4mm - 12mm)

Parking Brake (new control unit only)

5 - 7 notches

Engine and Ancillaries

Engine Model

2.0L (FS)

2.5L (KL)

Firing Order

1-3-4-2

1-2-3-4-5-6

Idle Speed RPM (ATX in Park)

700 +/- 50

650 +/- 50

Idle Speed RPM (MTX in Park)

700 +/- 50

650 +/- 50

Ignition Timing (degrees BTDC) at idle speed

10 +/- 1 (MTX)

9-11

12 +/- 1 (ATX)

Spark Plug (Motorcraft)

AGSP-32C

AGSP-33C

Spark Plug gap

0.040" - 0.043" (1.0mm - 1.1mm)

Spark Plug torque

11 - 17 ft-lb (15 - 23 N.m)

Oil Pan Drain Plug torque

22 - 30 ft-lb (30 - 41 N.m)

Drive Belt Tensions

Engine Model

2.0L (FS)

2.5L (KL)

Alternator and A/C (new)

-

160 - 190 pounds

Alternator and A/C (used)

-

110 - 150 pounds

Power Steering (new)

-

130 - 150 pounds

Power Steering (used)

-

88 - 120 pounds

Alternator (new)

170-180 pounds

-

Alternator (used)

110-150 pounds

-

Power Steering and A/C (new)

140-170 pounds

-

Power Steering and A/C (used)

110-150 pounds

-

Fluids and Capacities

Engine Model

2.0L (FS)

2.5L (KL)

Fuel Tank Capacity

15.5 gallons (58.5L)

Cooling System

7.4 qt. (7.0L)

7.9 qt. (7.5L)

Engine Oil Capacity (with filter)

3.7 qt. (3.5L)

4.2 qt. (4.0L)

Transaxle Fluid Capacity (ATX)

9.3 qt. (8.8L)

Transaxle Fluid Capacity (MTX)

2.9 qt. (2.7L)

Alignment Specs

Engine Model

2.0L (FS)

2.5L (KL)

Camber (front)

-0o 42' +/- 45'

-0o 54' +/- 45'

Camber (rear) - not adjustable

-0o 20' +/- 45'

Caster

3o 01' +/- 45'

Total Toe-In (front)

0o 17' +/- 17'

Total Toe-In (rear)

0o 17' +/- 17'

Front Wheel Turning Angle Full Turn Inside/Outside

37o +/- 2o / 32o +/- 2o

Halfshaft attaching nut torque

174 - 235 ft-lb (235 - 319 N.m)


General Maintenance Schedules

These two tables cover "scheduled" maintenance. The first one deals with "normal" driving conditions while the second tabel deals with "severe" driving conditions. Severe driving means the vehicle sees any of the following:

  • repeated sort-distance driving
  • dusty conditions
  • driving with extended use of brakes
  • conditions include road-salt or other corrosive agents
  • rough or muddy roads
  • extended idling periods
  • extremes of cold or heat
  • driving like I do

In these tables, I means inspect, clean or replace if necessary, R means to replace and L means to lubricate.

 

Normal Service Schedule

Months

6

12

18

24

30

36

42

48

Miles x 1000

7.5

15

22.5

30

37.5

45

52.5

60

Kilometers x 1000

12

24

36

48

60

72

84

96

Engine Oil

R

R

R

R

R

R

R

R

Oil Filter

R

R

R

R

R

R

R

R

Tension of all accessory drive belts

-

-

-

I

-

-

-

I

Engine Timing Belt

Replace every 60,000 miles (96,000 KM)

Air Cleaner Element

-

-

-

R

-

-

-

R

Hose & Tube for emission (what the hell is this?)

-

-

-

-

-

-

-

I

Spark Plugs

-

-

-

R

-

-

-

R

Idle Speed

-

-

-

I

-

-

-

I

Fuel Filter

-

-

-

-

-

-

-

R

Fuel Lines and Hose

-

-

-

I

-

-

-

I

Fuel Hose (Calif)

Inspect every 105,000 miles (168,000 KM)

Cooling System

-

-

-

I

-

-

-

I

Engine Coolant

-

-

-

R

-

-

-

R

Brake Lines, Hoses and Connections

-

-

-

I

-

-

-

I

Disc Brakes

-

-

-

I

-

-

-

I

Drum Brakes

-

-

-

I

-

-

-

I

Steering operation & linkage

-

-

-

I

-

-

-

I

Front suspension & ball-joints

-

-

-

I

-

-

-

I

Druveshaft dustboots

-

-

-

I

-

-

-

I

Bolts & nuts on chassis & body

-

-

-

I

-

-

-

I

Exhaust system heat shield

-

-

-

I

-

-

-

I

All locks and hinges

L

L

L

L

L

L

L

L

A/C refrigerant

Inspect refrigerant charge annually or as needed

A/C compressor

Inspect operation annually

 

 

Severe Service Schedule

Months

6

12

18

24

30

36

42

48

Miles x 1000

7.5

15

22.5

30

37.5

45

52.5

60

Kilometers x 1000

12

24

36

48

60

72

84

96

Engine Oil

R

R

R

R

R

R

R

R

Oil Filter

R

R

R

R

R

R

R

R

Tension of all accessory drive belts

-

-

-

I

-

-

-

I

Engine Timing Belt

Replace every 60,000 miles (96,000 KM)

Air Cleaner Element

-

I

-

R

-

I

-

R

Hose & Tube for emission (what the hell is this?)

-

-

-

-

-

-

-

I

Spark Plugs

-

-

-

R

-

-

-

R

Idle Speed

-

-

-

I

-

-

-

I

Fuel Filter

-

-

-

-

-

-

-

R

Fuel Lines and Hose

-

-

-

I

-

-

-

I

Fuel Hose (Calif)

Inspect every 105,000 miles (168,000 KM)

Cooling System

-

-

-

I

-

-

-

I

Engine Coolant

-

-

-

R

-

-

-

R

Brake Lines, Hoses and Connections

-

-

-

I

-

-

-

I

Disc Brakes

-

I

-

I

-

I

-

I

Drum Brakes

-

-

-

I

-

-

-

I

Steering operation & linkage

-

-

-

I

-

-

-

I

Front suspension & ball-joints

-

-

-

I

-

-

-

I

Druveshaft dustboots

-

-

-

I

-

-

-

I

Bolts & nuts on chassis & body

-

I

-

I

-

I

-

I

Exhaust system heat shield

-

-

-

I

-

-

-

I

All locks and hinges

L

L

L

L

L

L

L

L

A/C refrigerant

Inspect refrigerant charge annually or as needed

A/C compressor

Inspect operation annually

 


Engine Specifications

 

2.0L FS

Specification

Type

Gasoline, 4-cycle

Cylinder arrangement & number

Inline, 4-cyl

Combustion chamber

Pentroof

Valve system

DOHC, belt-driven, 16-valves

Displacement

1991 cc (121.5 cu in)

Bore x stroke

83.0mm x 92.0mm

Compression ratio

9.0:1

Compression pressure

1177kPa (171 PSI) @ 300RPM

Valve Timing

Intake opens

8-deg BTDC

Intake closes

50-deg ABDC

Exhaust opens

54-deg BBDC

Exhaust closes

8-deg ATDC

Valve Clearance

0 (maintenance-free via HLA)

 

 

2.5L KL

Specification

Type

Gasoline, 4-cycle

Cylinder arrangement & number

60-deg 'V', 6-cyl

Combustion chamber

Pentroof

Valve system

DOHC, belt-driven, 24-valves

Displacement

2496 cc (152.3 cu in)

Bore x stroke

84.5mm x 74.2mm

Compression ratio

9.2:1

Compression pressure

1402kPa (203 PSI) @ 250RPM

Valve Timing

Intake opens

8-deg BTDC

Intake closes

47-deg ABDC

Exhaust opens

50-deg BBDC

Exhaust closes

5-deg ATDC

Valve Clearance

0 (maintenance-free via HLA)

 

Transmission/Axle Specifications

MTX

2.5L KL

2.0L FS

First gear

3.307:1

Second gear

1.833:1

Third gear

1.310:1

1.233:1

Fourth gear

1.030:1

0.914:1

Fifth gear

0.795:1

0.717:1

Reverse

3.166:1

Final Drive

4.105:1

3.850:1

Oil/Lubrication

Grade

API Service GL-4 or GL-5

Viscosity (All Season)

SAE 75W-90

Viscosity (>10oC)

SAE 80W-90

Capacity

2.7L / 2.9qts

 

 

ATX

2.5L KL

2.0L FS

Converter Stall Torque Ratio

2.05

2.36

Stall Speed

2270-2500RPM

2090-2400RPM

First gear

2.800:1

Second gear

1.540:1

Third gear

1.000:1

Fourth gear (O/D)

0.700:1

Reverse

2.333:1

Final Drive

4.157:1

3.842:1

Oil/Lubrication

Grade

Mercon ATF

Capacity

8.8L / 9.3qts

 


The Diagnostic Connector

The diagnostic connector is located under the hood near the battery. The following lists the populated pins on North American vehicles. My documentation does not list several of the pins since these features weren't included in North American cars. If you have any information on pins not covered in my documentation and would like to see this list updated, please drop me a line. (Full credit will be given...)

Pin Name (see above)

Pin Name

Function

A

FEN

trouble code output (engine control computer)

B

MEN

switch monitor output (engine control computer)

C

TEN

diagnostic-mode input (engine control computer)

D

+B

switched battery voltage

E

GND

ground

F

FAT

trouble code output (automatic transmission control computer)

G

FBS

trouble code output (anti-lock brakes (ABS) control computer)

H

FAC

trouble code output (? not documented for North American vehicles)

J

FWS

trouble code output (? not documented for North American vehicles)

K

FSC

trouble code output (cruise (speed) control computer)

L

-

not used

M

TAT

diagnostic-mode input (automatic transmission control computer)

N

TBS

diagnostic-mode input (anti-lock brakes (ABS) control computer)

P

TAC

diagnostic-mode input (? not documented for North American vehicles)

Q

TWS

diagnostic-mode input (? not documented for North American vehicles)

R

TSC

diagnostic-mode input (cruise (speed) control computer)

S

-

not used

T

FAB

trouble code output (air-bag diagnostic monitor computer)

U

IG-

igniter coil output (for connection to external tachometer)

V

GND

ground

W

TFA

diagnostic-mode input (? not documented for North American vehicles)

X

F/P

fuel pump relay coil (ground to activate fuel pump)

Y

TAB

horn relay

Z

-

not used

3

-

not used

 

 


Malfunction Codes

Malfunction codes can be retrieved from the engine, ABS, automatic transmission and air-bag computers by reading the codes out on dashboard indicators.

Automatic Transmission (ATX) Malfunction Codes

Automatic transmission codes can be read by connecting the TAT and GND pins (see above for the location of this pin) and watching the "hold" light on the instrument cluster. The codes are read exactly as they are when reading the engine codes, except that the Hold light flashes, not the Check Engine Light. A summary of the codes and the reasons:

 

Code

Affected System or Component

01

NE1 (crankshaft position sensor)

06

Vehicle speed sensor

12

Throttle position sensor

14

BARO sensor (located within PCME)

55

Vehicle speed pulse generator

56

ATF thermosensor

57

Reduce torque signal 1

58

Reduce torque signal 2

59

Torque reduced/ECT sensor

60

1-2 shift solenoid valve

61

2-3 shift solenoid valve

62

3-4 shift solenoid valve

63

converter lock-up solenoid valve

64

3-2 timing solenoid valve

65

converter lock-up valve

66

line pressure solenoid valve

Anti-Lock Braking System (ABS) Malfunction Codes

Anti-lock braking (ABS) system codes are read when the TBS and GND pins are connected in the Diagnostic connector (see above). The codes are read, again, like the engine codes, but now on the ABS light on the instrument cluster. A summary of codes and the reasons:

 

Code

Affected System or Component

11

Right front wheel speed sensor or rotor

12

Left front wheel speed sensor or rotor

13

Right rear wheel speed sensor or rotor

14

Left rear wheel speed sensor or rotor

15

Wheel speed sensor

22

Hydraulic unit harness

51

Fail-safe relay

53

Motor or motor relay

61

ABS control unit

 

Supplemental Restraint System (SRS) Malfunction Codes

The supplemental restraint (SRS), better known as "air bag" system will flash the highest priority code on the air-bag lamp on the dash with no need for any pin in the Diagnostic box to be grounded. The codes are read, again, like the engine codes, but now on the Air Bag light on the instrument cluster. A summary of codes and the reasons (NOTE: these are from a 1993 Ford Service Manual. Later models with dual airbags (1994+) may have additional codes not covered here. Email me if you encounter one. Also, I hope but am unsure if these apply to the MX-6...):

 

Priority

Code

Fault

Highest

-

No air bag lamp: diagnostic monitor (DM), ignition power or bulb circuit

|

-

Continuous lamp: DM disconnected or inoperative

|

12

Low battery voltage

|

13

Air bag circuit or crash sensor shorted to ground

|

21

Safing sensor mounted incorrectly

|

22

Safing sensor: output shorted to battery voltage

|

23

Safing sensor input feed or return circuit open

|

24

Open in circuit 944B or low-resistance in crash sensor(s)

|

32

Driver's side air-bag / safing sensor: high resistance or open

|

33

Pin 7 not grounded at DM

|

34

Driver's side air-bag / safing sensor: low resistance or shorted

|

35

Low resistance across pins 8 and 9 of DM

|

41

Crash sensor circuit: high resistance or open

|

44

RH crash sensor not mounted properly

|

45

Center (radiator) crash sensor not mounted properly

|

46

LH crash sensor not mounted properly

|

51

DM internal fuse: blown and short to ground no longer exists

|

52

Backup-power supply: voltage boost fault

|

53

Internal DM fault

Lowest

-

Rapid continuous flashing or air-bag lamp: all crash sensors disconnected