Engine Mechanical – V6 Page 6A1–41
Page 6A1–41
2.11 Engine Noise Under Load
NOTE
A cold piston knock which disappears in
approximately 1.5 minutes from start up, should
be considered acceptable. A cold engine knock
usually disappears when t he specific cylinder’s
secondary ignition circuit is grounded out during
diagnosis.
A light rattle/tapping noise may indicate a valve train/upper engine concern, while a low rumble/knocking may indicate a
crankshaft, piston or lower engine concern.
Cause Correction
Low oil pressure. 1 Perform an oil pressure test, refer to 2.19 Engine Oil
Pressure Diagnosis.
2 Repair or replace the engine oil pump as required, refer to 3.17 Oil Pump Assembly.
Detonation or spark knock. Confirm the correct operation of the ignition system, refer to
6C1-2 Engine Management – V6 – Diagnostics.
Loose torque converter bolts. Inspect and tighten the torque converter bolts to the correct
torque specification, refer to 7C1 Automatic – 4L60E –
General Information – 4L60E – General Information.
Cracked flexplate. Replace the flywheel/flex-plate as required, refer to
4.3 Flexplate Assembly.
Excessive connecting rod bearing clearance. Inspect the connecting rod, crankshaft and bearings and
repair/replace components as required, refer to
4.5 Pistons, Pins, Rings, Connecting Rods and Big-end
Bearings and 4.6 Crankshaft and Main Bearings.
Excessive crankshaft bearing clearance Inspect the crankshaft, cylinder block journals, main
bearings and main bearing caps and repair/replace
components as required, refer to 4.6 Crankshaft and Main
Bearings and 4.7 Cylinder Block.
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TO MODEL INDEX
ISUZU KB P190 2007
ELECTRICAL-BODY AND CHASSIS 8A-611
No. Connector face No. Connector face
C1
Gray
Side turn light-RH C20
BlackHorn; high note
C2
Silver
Engine room-RH ground C21
BlackHorn; low note
C3
Black
Front wiper INT Relay C22
Front turn signal light STD-RH
C4
Sky blue
Front wiper motor C23
NOT USED
C5
~
C14 NOT USED C24
White
Pressure switch
C15
Gray
VSV FICD C24
BlackTriple pressure switch
C16
NOT USED C25
White
Front turn signal light STD-LH
C17
Gray
Front washer motor C26
BlackHeadlight STD-LH
C18
Black
Clearance light STD-RH C27
BlackClearance light STD-LH
C19
Black
Headlight STD-RH C28
Gray Headlight leveling acutuator STD-RH
BACK TO CHAPTER INDEX TO MODEL INDEXISUZU KB P190 2007
