1998 HONDA CR-V Ac and heat

Valve Guides
Replacement (cont'dl
5.
Working from the camshaft side, use the driver andan air hammer to drive the guide about 2 mm (O.l
in) towards the combustion chamber. This willknock off some of the carbon and make removaleasier. Hold the air hammer directly in line with thevalve guide to prevent damaging the driver.
CAUTION: Always wear satety goggles or a faceshield when driving valve guidss.
Turn the head over and drive the guide out towardthe camshaft side of the head.
li a valve guide won't move, drill it out with a 8.0mm (5/16 in) bit, then try again. Dritt guides onty inextreme cases; you could damage the cylinder headif the guide breaks.
Remove the new guide(s) from the freezer, one at atlme, as you need them.
6.
7.
6-26
'o C'
8. Apply a thin coat of clean engine oil to the outsideof the new valve guide. Install the guide from thecamshaft side of the head; use the special tool todrive the guide in to the specified installed height. lfyou have all 16 guides to do, you mav have toreheat the head.
Valve Guide Installed Height:
Intake: 13.75 - 1i1.25 mm
{0.5,[1 - 0.561 in)
Exhaust: 15.75 - 16.25 mm(0.620 - 0.640 inl
ATTACHMENT
www.emanualpro.com

Piston PinsConnecting Rods
Assemble the Piston Pin Tools as shown.
PISTON BASE HEAO07HAF -PL20102
PISTON BASE07973 - 6570500
Adjust the length A of the piston pin dflver.
A: 49.70 mm 11.957 in)
PIN DRIVER HEAIPE00320
\
RIr1
nT---
u
ffi-"""-
u_ll
3. Place the piston on the piston base, and press the
pin out with a hydraulic press. Make sure that the
recessed portion of the piston aligns with the lips
on the collar.
7-14
Removal
1.
PISTON07973 -
PISTON PIN BASE INSERT07GAF - PH60300
PISTON PIN DRIVER SHAFT07973 - PEt 0310
PILOT COLLAR07LAF - PR30100Embossod mark facing up.
Selection
Each rod falls into one of four tolerance ranges (from 0
to + 0.024 mm {0 to + 0.0009 in). in 0.006 mm (0.0002 in)
increments) depending on the size of its big end bore.
lt's then stamped with a number 1.1.2,3, or 4) indicating
the range.
You may find any combination ot 1,2,3, or 4 in any
engrne.
Normal Bore Size: ,18.0 mm (1.89 in)
Inspect the connecting rod for cracks and heat damage.
CONNECTING ROD BOREREFENENCE NUMBERHalf of number is stamped onbearing cap, the other half onconnectno roo.
www.emanualpro.com

lllustrated Index
CAUTION: The system is under high pressure when the
engine is hot. To avoid danger ol releasing scalding engine
coolant, remove the cap only when the engine is cool.
Total Cooling System Capacity fincluding 0.6 I (0.63 US
qt, 0.53 lmp qt) for heater and reservoirl:
A/T: 5.9 { {6.2 US qt, 5.2 lmp qt)
M/T: 6.0 f (6.3 US $, 5.3 lmp qt)
deterioration and replace if necessar,.
Check all hose clamps and retighten if necessary.
lf any engine coolant spills on the
body, rinse it off immediately.
Check all cooling system hoses
painted portions of the
for damage, leaks or
6x1.0mm9.8 N.m 11.0 kgf.m.1.2 tbl.ftl
RADIATOREngine coolant refilling and bleeding,page 10-5Leak test, page 10 7Inspect soldered joints andseams for leaks.Blow out din from betweencore fins with compressed air.lf insects, etc., are cloggingradiator, wash them off withlow pressure water.RADIATOR CAPPressure test, page 10-7
ATF COOLERHOSEReler to section 14when installing.
LOWERcusHroN
6x1.0mm7 N.m (0.7 kgf.m, 5 lbf ftl
FAN MOTOR
10-2
www.emanualpro.com

Engine Coolant Refilling and Bleeding
1. Slide the heater lemperature control lever to maxi
mum heat.
Make sure the engine and radiator are cooi to the
touch.
2. Remove the radiator caP.
3. Loosen the drain plug, and drain the coolant.
4. Remove the drain bolt from the cylinder block.
DRAIN PLUG
DRAIN BOLT78 N.m {8.0 ksl.m, 58 lbtft}
10-5
6.
7.
Apply liquid gasket to the drain bolt threads, then
reinstall the bolt with a new washer and tighten it
securely.
Tighten the radiator drain plug securely.
Remove, drain and reinstall the reservoir' Fill the
tank halfway to the MAX mark with water, then up
to the MAX mark with antitreeze.
(cont'd)
www.emanualpro.com

Testing
Replace the thermostat if it is open at room temperature.
To test a closed thermostat:
1. Suspend the thermostat in a container of water. Do
not let the thermometer touch the bottom of the hot
container.
THERMOMETER
THERMOSTAT
Heat the water, and check the temperature with a
thermometer. Check the temperature at which the
thermostat first opens, and at which it is fully open.
Measure the lift height of the thermostat when fully
open.
STANDARD THERMOSTAT
Lift height: above 8.0 mm (0.31 in)
Starts opening: 169 - 176'F (76 - 80'C)
Fully open: 194'F (90'C)
10-9
www.emanualpro.com

Fan Control
Fan Motor Testing
1. Disconnect the 2P connector.
Terminalside ofmale terminals
Test the motor by connecting battery power to theNo. 2 terminal and ground to the No. 1 terminal.
lf the motor fails to run or does not run smoothly,reptace rt.
RADIATOR FAN MOTOR
10-14
Radiator Fan Switch Testing
E@ Removing the radiator fan switch whilethe engine is hot can cause the coolant to spray out, seri-ously scalding you. Always let the enginc and radiatorcool down before removing the radiator fan switch.
1. Remove the radiator fan switch from the thermostathousing (see page 10 '10).
2. Suspend the radiator fan switch in a container ofwater as shown.
Heat the water, and check the temperature with athermometer. Do not let the thermometer touch thebottom of the hot container.
Measure the continuity between the A and B termi-nals according to the table.
Bleed the air from the cooling system after installingthe radiator fan switch (see page 10-5).
Terminal
op".*i- Tr"ip".a*" \.B
SWITCH
ON196 - 203"F
{91 - 95.C)o---o
OFF
5 - 14"F (3 - 8.C)
lower than the tem-peratu re wh en itgoes on
www.emanualpro.com

Fuel and Emissions
Special Tools ...................... 11-2
Component Locations
lndex ...................... ....,.... 11-3
Svstem Description
Vacuum Connections ...........,....,.,................. 1 1-9
Electrical Connections ................................... 1 1-15
System Connectors .,.,,.,............................,.,. 1 1-36
Troubleshooting
Troubleshooting Procedures,.,..................... 11-60
Engine Control Module/Powertrain ConttolModule Terminal Arrangement .............., 11-67
Diagnostic Trouble Code Chart .................... 1 t-75
How to Read Flowcharts .......,.....,.,............... I 1-79
PGM-Fl System
System Description .................,.,.,,,............... 1 1-80
Troubleshooting Flowcharts
Engine Control Module/PowertrainControl Module ........11-52
Manifold Absolute Pressure Sensor ............. 11-90
Intake Air Temperature Sensor .................... 1 1-95
Engine Coolant Temperature Sensor .,..,.,.... 1 1-99
Throttle Position Sensor ...........,.....,.,.,..,...... I 1'103
Primary Heated Orygen Sensor (Sensor 1) ... 11-110
Secondary Heated Oxygen Sensor{Sensor 2l .................. 1 1-117
Heated Oxygen Sensor Heater ..................... 11-121
Fuef Supply System ......11-124
Random Misfire ,....,.,..... 11-126
Mistire Detected in One Cylinder .....-........... 11-128
Knock Sensor ................ 11-130
CKP/TDC/CYP Sensor .................................... 1 1-131
Vehicle Speed Sensor ...............................,.... 1 1-135
Barometric Pressure Sensor .....,...,...,.,,........ 1 1-137
Electrical Load Detector ...,.,.......................... 1 1-138
CKF Sensor ................,.,, '11-112
ECM/PCM lnternaf Circuit ............................. 11'117
HO2S Replacement .,.,.,. 11-148
ldle Control System
System Description ............ 11-149
Troubleshooting Flowcharts
ldle Control System ...... 11-150
fdle Air Control Valve ......................,............. 11-152
Air Conditioning Signal ................................. I 1-155
Alternator FR Signal ...................................... 1 1-159
Starter Switch Si9na1 .................................... t l-161
Power Steering Pressure Switch Signal ...... 11-162
Brake Switch Si9na1 ...................................... 11-166
Fast ldle Thermo Valve .,.,.............................,.,.,. 11-168
ldle speed setting .............. 11-169
Fuel Supply System
Fuel Lines ............................ 11-171
Fuef Tube/Ouick-Conneci Fittings ..................... 11 -175
System Description ............ 11-178
Fuel Pressurg ...................... 11-178
Fuel Iniectors ................,..... 11-179
Fuel Pressure Re9u1ator .............................,.,...., f 1-181
Fuef Fifter ....,.,.,.,,,,.,............11-142
Fuel Pump ........................... 11-183
Fuel Gauge .......................... 11-184
Fuel Gauge Sending Unit ................................... I 1-185
Low Fuel Indicator System ...........,.,..,............... 1 1-185
PGM-FI Main Relay ............. 11-187
Fue|Tank................ ............. 11-191
Intake Air System
System Description ............ 11-193
Air Cleanel ,.,.,..................... 11-194
Throttle Cable ..................... 11-194
Throttle Body........ .............. 11-196
Emission Control System
System D$cription ...,....,.,. 11-199
Tailpipe Emission ............... 11-199
Three Way Catalytic Converter ..................,.,...,, 11-199
Positive Crankcase Ventilation System .,.,,,,.,.., 11-2O1
Evaporative Emission Controls .........,.,.,............ 11-203
www.emanualpro.com

System Description
System Gonnectors lDash and Floor] -'97 Model
MAIN WIREHARNESS
DASHBOARD WIREHANNESS
REAR HEATED OXYGENSENSOR SUA HARNESS
WIRE HARNESS
www.emanualpro.com