INSPECTION, REPAIR AND REPLACEMENT
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and replace if necessary.
Use the Chart Below to Help You Find the Cause of the Symptom
- Locate the area where noise occurs.
- Confirm the type of noise.
- Specify the operating condition of engine.
- Check specified noise source.
If necessary, repair or replace these parts.
| Location of noise | Type of noise | Operating condition of engine | Source of noise | Check item | Reference | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Before warm-up | After warm-up | When starting | When idling | When racing | While driving | |||||
| Top of engine Rocker cover Cylinder head | Ticking or clicking | C | A | A | B | Tappet noise | Valve clearance | VALVE CLEARANCE | ||
| Rattle | C | A | A | B | C | Camshaft bearing noise | Camshaft journal clearance Camshaft runout | CAMSHAFT JOURNAL CLEARANCE CAMSHAFT RUNOUT | ||
| Crankshaft pulley Cylinder block (Side of engine) Oil pan | Slap or knock | A | B | B | Piston pin noise | Piston and piston pin clearance Connecting rod bushing clearance | PISTON TO PISTON PIN OIL CLEARANCE CONNECTING ROD BUSHING OIL CLEARANCE | |||
| Slap or rap | A | B | B | A | Piston slap noise | Piston-to-bore clearance Piston ring side clearance Piston ring end gap Connecting rod bend and torsion | PISTON TO CYLINDER BORE CLEARANCE PISTON RING SIDE CLEARANCE PISTON RING END GAP CONNECTING ROD BEND AND TORSION | |||
| Knock | A | B | C | B | B | B | Connecting rod bearing noise | Connecting rod bushing clearance (Small end) Connecting rod bearing clearance (Big end) | CONNECTING ROD BUSHING OIL CLEARANCE CONNECTING ROD BEARING OIL CLEARANCE | |
| Knock | A | B | A | B | C | Main bearing noise | Main bearing oil clearance Crankshaft runout | MAIN BEARING OIL CLEARANCE CRANKSHAFT RUNOUT | ||
| Front of engine Timing chain cover | Tapping or ticking | A | A | B | B | B | Timing chain and chain tensioner noise | Timing chain cracks and wear Timing chain tensioner operation | TIMING CHAIN | |
| Front of engine | Squeaking or fizzing | A | B | B | B | Drive belts (Sticking or slipping) | Drive belts deflection | DRIVE BELTS | ||
| Creaking | A | B | A | B | A | B | Drive belts (Slipping) | Idler pulley bearing operation | ||
| Squall Creak | A | B | B | A | B | Water pump noise | Water pump operation | WATER PUMP | ||
| Rattle | A | VTC | VTC sprockets | VALVE TIMING CONTROL | ||||||
| A: Closely related B: Related C: Sometimes related -: Not related | ||||||||||
INSPECTION AFTER REMOVAL
Examine the air cleaner filter for stains, clogging, or damage.
- Remove dirt and foreign objects (such as dead leaves) on air cleaner filter surface and inside cleaner case.
- If clogging or damage is observed, replace the air cleaner filter.
| CAUTION | Do not clean the viscous paper type air cleaner filter by blowing as there is a risk of deterioration of its performance. |
Visually check the electrode for dirt and wear and the insulator for burning.
Scheme 10
Scheme 11
- Do not use a wire brush for cleaning the spark plugs. Replace as necessary.
- If plug is covered with carbon, a spark plug cleaner may be used. Cleaner air pressure: less than 588 kPa (6 kg/cm 2 , 85 psi) Cleaning time: less than 20 seconds
- Checking and adjusting plug gap is not required between change intervals. If the gap is out of specification, replace the spark plug.
| CAUTION | Do not drop or shock plug. |
Scheme 12
Inspect air duct and resonator assembly for cracks or tears.
- If anything found, replace air duct and resonator assembly.
Scheme 13
INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at connections as follows
- Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel leaks at connections. NOTE: Use mirrors for checking on connections out of the direct line of sight.
- Start the engine and rev it up and check for fuel leaks at connections. WARNING: Do not touch engine immediately after stopping as engine is extremely hot.
Scheme 14
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Scheme 17
- Disconnect battery negative terminal.
- Remove A/C line bracket bolt (A).
- Remove engine under cover. Refer to " «FLOOR UNDER COVER: REMOVAL AND INSTALLATION»(ref-616717-S18651389222014051900000) ".
- Remove the oil level gauge and oil level gauge guide. Refer to -->" «EXPLODED VIEW»(ref-616715-S37969382852014051900000) ".
- Remove harness ground wire bolt from generator bracket.
- Disconnect harness connector from air fuel ratio (A/F) sensor 1.
- Remove the air fuel ratio (A/F) sensor 1 (1) using Tool (A), (if necessary). Tool number: KV10117100 (J-36471-A) CAUTION: Be careful not to damage air fuel ratio (A/F) sensor. Discard any air fuel ratio (A/F) sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; replace with a new one.
- Detach front exhaust tube from exhaust manifold and three way catalyst. Discard the gasket. Refer to " «EXPLODED VIEW»(ref-616715-S02001174702014051900000) ".
- Remove the exhaust manifold cover (upper).
- Loosen the exhaust manifold and three way catalyst nuts in the reverse order as shown below.
- Remove exhaust manifold and three way catalyst.
- Remove the exhaust manifold cover (lower front) (if necessary).
- Remove the exhaust manifold cover (lower rear) (if necessary).
Surface Distortion
Scheme 18
- Check the flatness of exhaust manifold and three way catalyst using suitable tools (A/B). NOTE: Place the suitable tool (A) diagonally and measure in several locations. Limit: 0.3 mm (0.012 in)
Clean the oil strainer screen to remove any foreign material.
Scheme 19
Scheme 20
- Apply Genuine Silicone RTV Sealant or equivalent to the upper oil pan at the specified sealant bead diameter (A) as shown below. Refer to " «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-616709-S30035767112014051900000) ". Sealant bead: 4.0 - 5.0 mm (0.157 - 0.197 in) diameter (A) CAUTION: Be sure liquid gasket application surface is free from dust, grease, and water. Install two new O-rings in the upper oil pan and a new O-ring in the front cover. Do not reuse O-rings. Be sure to apply liquid gasket to the outside of bolt holes 1, 2, and 4. Be sure to apply liquid gasket without breaks or overlap. Installation should be done within 5 minutes after applying liquid gasket. Do not fill the engine with engine oil for at least 30 minutes after the components are installed to allow the liquid gasket to cure.
- Install the upper oil pan to the block and tighten the upper oil pan bolts to specification in the order shown below. CAUTION: Install upper oil pan bolts in the same position from which they were removed. All bolts except 18 and 19: 21.6 N.m (2.2 kg-m, 16 ft-lb) Bolts 18 and 19: 8.8 N.m (0.90 kg-m, 78 in-lb)
- Apply Genuine Silicone RTV Sealant or equivalent to the lower oil pan at the specified sealant bead diameter (A) as shown below. Refer to " «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-616709-S30035767112014051900000) ". CAUTION: Be sure liquid gasket application surface is free from dust, grease, and water. Be sure to apply liquid gasket to the inside of all bolt holes. Be sure to apply liquid gasket without breaks or overlap. Installation should be done within 5 minutes after applying liquid gasket. Do not fill the engine with engine oil for at least 30 minutes after the components are installed to allow the liquid gasket to cure. Sealant bead: 4.0 - 5.0 mm (0.157 - 0.197 in) diameter (A)
- Install the lower oil pan to the upper oil pan and tighten the lower oil pan bolts to specification in the numerical order shown below.
- Install oil level gauge (1), oil level gauge guide (2), and O-ring (3). Bolt (A): 21.6 N.m (2.2 kg-m, 16 ft-lb)
- Installation of the remaining components is in the reverse order of removal.
Check for engine oil leaks with the engine at operating temperature and running at idle. Refer to " INSPECTION ".
Scheme 21
Make sure there are no fuel leaks at connections as follows
- Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel leaks at connections.
- Start the engine and rev it up and check for fuel leaks at connections. Perform procedures for "Throttle Valve Closed Position Learning" after finishing repairs. Refer to " «WORK PROCEDURE»(ref-616720-S02703137402014051900000) ". If electric throttle control actuator is replaced, perform procedures for "Idle Air Volume Learning" after finishing repairs. Refer to " «WORK PROCEDURE»(ref-616720-S23433204712014051900000) ". WARNING: Do not touch engine immediately after stopping as engine is extremely hot. NOTE: Use mirrors for checking on connections out of the direct line of sight.
Scheme 22
Inspection for Leaks
- Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required quantity, fill to the specified level. Refer to " «REFILLING»(ref-616722-S16422014812014051900000) ".
- Use the following steps to check for fuel leaks. Turn ignition switch "ON" (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks at connection points. Start engine. With engine speed increased, check again for fuel leaks at connection points.
- Run engine to check for unusual noise and vibration. NOTE: If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after hydraulic pressure rises.
- Warm up engine thoroughly to check there are no fuel leaks, exhaust gas leaks, or any oil/fluid leaks including engine oil and engine coolant.
- Bleed air from lines and hoses of applicable lines, such as in cooling system.
- After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary. SUMMARY OF INSPECTION ITEMS Items Before starting engine Engine running After engine stopped Engine coolant Level Leakage Level Engine oil Level Leakage Level Transmission/transaxle fluid AT & CVT Models Leakage Level/Leakage Leakage MT Models Level/Leakage Leakage Level/Leakage Other oils and fluids (1) Level Leakage Level Fuel Leakage Leakage Leakage Exhaust gases - Leakage - (1) Power steering fluid, brake fluid, etc.
Scheme 23
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- Remove the rocker cover. Refer to " «REMOVAL AND INSTALLATION»(ref-616715-S27518389342014051900000) ".
- Remove camshaft position sensors.
- Remove camshaft position sensor bracket.
- Remove the valve timing control cover. Refer to " «VALVE TIMING CONTROL COVER»(ref-616715-S00987182682014051900000) ".
- Set the No. 1 cylinder at TDC on its compression stroke using the following procedure: Rotate crankshaft pulley clockwise, and align mating mark for TDC (B) with timing indicator (A) on front cover, as shown below. NOTE: Do not use the white paint mark (C). At the same time, make sure that the mating marks (outer groove) (B) on camshaft sprockets are lined up with the pink links (A) in the timing chain, as shown below. If not, rotate crankshaft pulley one more turn to line up the mating marks (outer groove) (B) to the pink links (A), as shown below. NOTE: Shown with front cover removed for illustration purposes only.
- Remove chain tensioner (1) and timing chain using the following procedure: Pull the lever (B) down and release the plunger stopper tab (C). Plunger stopper tab (C) can be pushed up to release (coaxial structure with lever (B)). Insert the stopper pin (A) into the tensioner body hole to hold the lever (B) and keep tab released. NOTE: Allen wrench [2.5 mm (0.098)] is used for a stopper pin as an example. Insert plunger (C) into tensioner body by pressing timing chain slack guide (1). Keep timing chain slack (1) guide pressed and hold it by pushing the stopper pin (B) through the lever hole and body hole. Remove the chain tensioner bolts (A) and chain tensioner. Remove the timing chain from camshaft sprocket (INT) and camshaft sprocket (EXH). CAUTION: Use suitable tool to prevent timing chain from falling into front cover after it has been removed from camshaft sprocket (INT) and camshaft sprocket (EXH). Do not rotate the crankshaft or camshafts while the timing chain is removed. It can cause damage to the valves and pistons.
- Remove the camshaft sprockets using the following procedure: Secure hexagonal part of the camshaft with a suitable tool and loosen the camshaft sprocket bolt. Remove the camshaft sprocket bolt and camshaft sprockets for both camshafts.
- Loosen the camshaft bracket bolts in the order as shown below, and remove the camshaft brackets and camshafts. NOTE: Remove camshaft bracket (No. 1) by slightly tapping it with a rubber mallet.
- Remove the valve lifters. NOTE: Check installation positions, and set them aside in the order removed.
Scheme 25
- Put the camshaft on a V-block supporting the No. 2 and No. 5 journals. CAUTION: Do not support the No. 1 journal (on the side of the camshaft sprocket) because it has different diameter from the other four locations.
- Set suitable tool (A) vertically on the No. 3 journal.
- Turn camshaft in one direction by hand, and measure the camshaft runout on the dial gauge total indicator reading. Standard: Refer to " «CAMSHAFT»(ref-616715-S28504132322014051900000) "
Scheme 26
- Measure the camshaft cam height using suitable tool (A). Standard intake cam height: Refer to " «CAMSHAFT»(ref-616715-S28504132322014051900000) " Standard exhaust cam height: Refer to " «CAMSHAFT»(ref-616715-S28504132322014051900000) "
- If wear is beyond the limit, replace the camshaft.
Inspection of Camshaft Sprocket (INT) Oil Groove and Camshaft Sprocket (EXH) Oil Groove
| WARNING | Check when engine is cold so as to prevent burns from any splashing engine oil. |
| CAUTION | Perform this inspection only when DTC P0011, P0014, P052A, P052B is detected in self-diagnostic results of CONSULT and it is directed according to inspection procedure of Engine Control article. |
Scheme 27
- Check engine oil level and adjust oil level as necessary. Refer to " «INSPECTION»(ref-616722-S26530299792014051900000) ".
- Remove the intake valve timing intermediate lock control solenoid valve, intake valve timing control solenoid valve, and exhaust valve timing control solenoid valve. Refer to " «INTAKE VALVE TIMING INTERMEDIATE LOCK CONTROL SOLENOID VALVE, INTAKE VALVE TIMING CONTROL SOLENOID VALVE, AND EXHAUST VALVE TIMING CONTROL SOLENOID VALVE»(ref-616715-S32992553102014051900000) ".
- Perform the following procedure to prevent the engine from being unintentionally started while checking. Release fuel pressure. Refer to " «WORK PROCEDURE»(ref-616720-S42626896142014051900000) ". Disconnect injector harness connectors.
- Crank engine, and then make sure that engine oil comes out of the valve timing control cover oil holes (A). End cranking after checking. WARNING: Be careful not to touch rotating parts (drive belt, crankshaft pulley, etc.). CAUTION: Engine oil may squirt from intake valve timing intermediate lock control solenoid valve, intake valve timing control solenoid valve, exhaust valve timing control solenoid valve installation holes during cranking. Use a shop cloth to prevent engine oil from splashing on worker, engine components and vehicle. Do not allow engine oil to get on rubber components such as drive belts or engine mount insulators. Immediately wipe off any splashed engine oil.
- If engine oil does not come out from valve timing control cover oil holes (A), diagnose problem in lubrication circuit such as dirty oil groove between oil strainer and intake valve timing intermediate lock control solenoid valve, intake valve timing control solenoid valve, or exhaust valve timing control solenoid valve. Refer to " «ENGINE LUBRICATION SYSTEM»(ref-616722-S33946331212014051900000) ". Remove components between intake valve timing intermediate lock control solenoid valve, intake valve timing control solenoid valve, exhaust valve timing control solenoid valve and camshaft sprocket (INT) or camshaft sprocket (EXH), (if necessary) and then check each oil groove for clogging. Clean oil groove if necessary. Refer to " «ENGINE LUBRICATION SYSTEM»(ref-616722-S33946331212014051900000) ".
- After inspection, install the remaining components in the reverse order of removal.
Scheme 28
- Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required quantity, fill to the specified level. Refer to " «RECOMMENDED FLUIDS AND LUBRICANTS»(ref-616719-S31709126332014051900000) " (United States and Canada).
- Use procedure below to check for fuel leaks.
- Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks at connection points.
- Start engine. With engine speed increased, check again for fuel leaks at connection points.
- Run engine to check for unusual noise and vibration. NOTE: If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after hydraulic pressure rises.
- Warm up engine thoroughly to make sure there are no leaks of fuel, exhaust gas, or any oils/fluids including engine oil and engine coolant.
- Bleed air from passages in lines and hoses, such as in cooling system.
- After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to specified level, if necessary.
- Summary of the inspection items
| Items | Before starting engine | Engine running | After engine stopped | |
|---|---|---|---|---|
| Engine coolant | Level | Leakage | Level | |
| Engine oil | Level | Leakage | Level | |
| Transmission/transaxle fluid | AT & CVT Models | Leakage | Level/Leakage | Leakage |
| Other oils and fluids (1) | Level | Leakage | Level | |
| Fuel | Leakage | Leakage | Leakage | |
| Exhaust gases | Leakage | |||
| (1) Power steering fluid, brake fluid, etc. | ||||
| (1) | Power steering fluid, brake fluid, etc. |