TROUBLESHOOTING GUIDE

B2-4spec table

K8 engine (1.8L V6) troubleshooting guide continuation.

Troubleshooting Guide (continued)

Problem	Possible Cause	Action	Page
Insufficient power	Insufficient compression — Malfunction of HLA	Replace	B2-37
Insufficient power	Insufficient compression — Compression leakage from valve seat	Repair	B2-76
Insufficient power	Insufficient compression — Stuck valve	Replace	B2-74
Insufficient power	Insufficient compression — Weak or broken valve spring	Replace	B2-77
Insufficient power	Insufficient compression — Damaged cylinder head gasket	Replace	B2-23
Insufficient power	Insufficient compression — Cracked or distorted cylinder head	Replace	B2-73
Insufficient power	Insufficient compression — Stuck, damaged, or worn piston ring	Replace	B2-82
Insufficient power	Insufficient compression — Cracked or worn piston	Replace	B2-82
Insufficient power	Malfunction of fuel system	Refer to section F2
Insufficient power	Others — Dragging brake	Refer to section P
Insufficient power	Others — Wrong size tires	Refer to section Q
Abnormal combustion	Malfunction of engine-related components — Malfunction of HLA	Replace	B2-37
Abnormal combustion	Malfunction of engine-related components — Stuck or burned valve	Replace	B2-74
Abnormal combustion	Malfunction of engine-related components — Weak or broken valve spring	Replace	B2-77
Abnormal combustion	Malfunction of engine-related components — Carbon accumulation in combustion chamber	Eliminate carbon
Abnormal combustion	Malfunction of fuel system	Refer to section F2
Excessive oil consumption	Oil working up — Worn piston ring groove or stuck piston ring	Replace	B2-82
Excessive oil consumption	Oil working up — Worn piston or cylinder	Replace or repair	B2-81,82
Excessive oil consumption	Oil working down — Worn valve seal	Replace	B2-65
Excessive oil consumption	Oil working down — Worn valve stem or guide	Replace	B2-75
Excessive oil consumption	Oil leakage	Refer to section D2
Engine noise	Crankshaft- or bearing-related parts — Excessive main bearing oil clearance	Replace or repair	B2-91
Engine noise	Crankshaft- or bearing-related parts — Main bearing heat-damaged	Replace	B2-84
Engine noise	Crankshaft- or bearing-related parts — Excessive crankshaft end play	Replace or repair	B2-93
Engine noise	Crankshaft- or bearing-related parts — Excessive connecting rod bearing oil clearance	Replace or repair	B2-94
Engine noise	Crankshaft- or bearing-related parts — Connecting rod bearing heat-damaged	Replace	B2-84
Engine noise	Piston-related parts — Worn cylinder	Replace or repair	B2-81
Engine noise	Piston-related parts — Worn piston or piston pin	Replace	B2-82,83
Engine noise	Piston-related parts — Damaged piston ring	Replace	B2-82
Engine noise	Piston-related parts — Bent connecting rod	Replace	B2-83
Engine noise	Valve train-related parts — Malfunction of HLA*	Replace	B2-80
Engine noise	Valve train-related parts — Broken valve spring	Replace	B2-77
Engine noise	Valve train-related parts — Excessive valve guide clearance	Replace	B2-75
Engine noise	Valve train-related parts — Malfunction of timing belt auto tensioner	Replace	B2-85
Engine noise	Valve train-related parts — Malfunction of friction gear	Replace	B2-76
Engine noise	Malfunction of cooling system	Refer to section E2
Engine noise	Malfunction of fuel system	Refer to section F2
Engine noise	Others — Malfunction of water pump bearing	Replace	—
Engine noise	Others — Improper drive belt tension	Adjust	B2-5
Engine noise	Others — Malfunction of generator bearing	Replace	—
Engine noise	Others — Exhaust gas leakage	Repair	—

Insufficient power

Possible CauseInsufficient compression — Malfunction of HLA

ActionReplace

PageB2-37

Insufficient power

Possible CauseInsufficient compression — Compression leakage from valve seat

ActionRepair

PageB2-76

Insufficient power

Possible CauseInsufficient compression — Stuck valve

ActionReplace

PageB2-74

Insufficient power

Possible CauseInsufficient compression — Weak or broken valve spring

ActionReplace

PageB2-77

Insufficient power

Possible CauseInsufficient compression — Damaged cylinder head gasket

ActionReplace

PageB2-23

Insufficient power

Possible CauseInsufficient compression — Cracked or distorted cylinder head

ActionReplace

PageB2-73

Insufficient power

Possible CauseInsufficient compression — Stuck, damaged, or worn piston ring

ActionReplace

PageB2-82

Insufficient power

Possible CauseInsufficient compression — Cracked or worn piston

ActionReplace

PageB2-82

Insufficient power

Possible CauseMalfunction of fuel system

ActionRefer to section F2

Page

Insufficient power

Possible CauseOthers — Dragging brake

ActionRefer to section P

Page

Insufficient power

Possible CauseOthers — Wrong size tires

ActionRefer to section Q

Page

Abnormal combustion

Possible CauseMalfunction of engine-related components — Malfunction of HLA

ActionReplace

PageB2-37

Abnormal combustion

Possible CauseMalfunction of engine-related components — Stuck or burned valve

ActionReplace

PageB2-74

Abnormal combustion

Possible CauseMalfunction of engine-related components — Weak or broken valve spring

ActionReplace

PageB2-77

Abnormal combustion

Possible CauseMalfunction of engine-related components — Carbon accumulation in combustion chamber

ActionEliminate carbon

Page

Abnormal combustion

Possible CauseMalfunction of fuel system

ActionRefer to section F2

Page

Excessive oil consumption

Possible CauseOil working up — Worn piston ring groove or stuck piston ring

ActionReplace

PageB2-82

Excessive oil consumption

Possible CauseOil working up — Worn piston or cylinder

ActionReplace or repair

PageB2-81,82

Excessive oil consumption

Possible CauseOil working down — Worn valve seal

ActionReplace

PageB2-65

Excessive oil consumption

Possible CauseOil working down — Worn valve stem or guide

ActionReplace

PageB2-75

Excessive oil consumption

Possible CauseOil leakage

ActionRefer to section D2

Page

Engine noise

Possible CauseCrankshaft- or bearing-related parts — Excessive main bearing oil clearance

ActionReplace or repair

PageB2-91

Engine noise

Possible CauseCrankshaft- or bearing-related parts — Main bearing heat-damaged

ActionReplace

PageB2-84

Engine noise

Possible CauseCrankshaft- or bearing-related parts — Excessive crankshaft end play

ActionReplace or repair

PageB2-93

Engine noise

Possible CauseCrankshaft- or bearing-related parts — Excessive connecting rod bearing oil clearance

ActionReplace or repair

PageB2-94

Engine noise

Possible CauseCrankshaft- or bearing-related parts — Connecting rod bearing heat-damaged

ActionReplace

PageB2-84

Engine noise

Possible CausePiston-related parts — Worn cylinder

ActionReplace or repair

PageB2-81

Engine noise

Possible CausePiston-related parts — Worn piston or piston pin

ActionReplace

PageB2-82,83

Engine noise

Possible CausePiston-related parts — Damaged piston ring

ActionReplace

PageB2-82

Engine noise

Possible CausePiston-related parts — Bent connecting rod

ActionReplace

PageB2-83

Engine noise

Possible CauseValve train-related parts — Malfunction of HLA*

ActionReplace

PageB2-80

Engine noise

Possible CauseValve train-related parts — Broken valve spring

ActionReplace

PageB2-77

Engine noise

Possible CauseValve train-related parts — Excessive valve guide clearance

ActionReplace

PageB2-75

Engine noise

Possible CauseValve train-related parts — Malfunction of timing belt auto tensioner

ActionReplace

PageB2-85

Engine noise

Possible CauseValve train-related parts — Malfunction of friction gear

ActionReplace

PageB2-76

Engine noise

Possible CauseMalfunction of cooling system

ActionRefer to section E2

Page

Engine noise

Possible CauseMalfunction of fuel system

ActionRefer to section F2

Page

Engine noise

Possible CauseOthers — Malfunction of water pump bearing

ActionReplace

Page—

Engine noise

Possible CauseOthers — Improper drive belt tension

ActionAdjust

PageB2-5

Engine noise

Possible CauseOthers — Malfunction of generator bearing

ActionReplace

Page—

Engine noise

Possible CauseOthers — Exhaust gas leakage

ActionRepair

Page—

NOTE

* Tappet noise may occur if the engine has not been started for an extended period of time. The noise should stop after the engine reaches normal operating temperature. (HLA troubleshooting: Refer to page B2-8.)

WARNING

Continuous exposure with USED engine oil has caused skin cancer in laboratory mice. Protect your skin by washing with soap and water immediately after this work.

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TROUBLESHOOTING GUIDE

Troubleshooting Guide (continued)

See also

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