Question about 2003 Nissan Sentra

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HELP!!...sentra B14 krok krok krok sound

My sentra using GA16DE engine (stock) and no modification. The krok krok sound coming from the front when i press a bit my accelerator (at 40km/h to 60km/h). When i release the accelerator, the sound gone. When at high speed (110km/h to 120k/h) the sound came again. i noticed that the sound came out between 1500rpm to 2500rpm. Mine is auto transmission. please help me. This sound very annoying me. i just bought it last month (i'm a second owner).

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  • KJ_ronnek Jun 26, 2008

    the sound happing both turning and straight. it only happen when i press the accelerator. My car mileage now aroung 113,500KM.

  • robertojr Sep 04, 2008

    the sound is coming from the engine valves, the kroking sound is the knocking valves. The engine valves usually knocks if the actual degree timing setting does not complies with the value programed in your car computer box . You may check and correct the problem using a consult-instrument or a snap-on scanner tool, if you are not familiar with these tools, you may bring your car to nissan motors for proper engine diagnosis and correct the problem.





  • SLAYER SLY May 11, 2010

    is the sound happing while turning how many miles is on the car

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  • 113 Answers

Sounds like to me ur having c.v axle failure or hub bearing failure

Posted on Jun 27, 2008

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I activated the cruise control on my 95 Nissan Sentra and now it won't disengage...any suggestions?


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Sep 30, 2015 | Nissan Cars & Trucks

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How to replace the timing chain of nissan cefiro v6 2000? its 97 model.


Engine - Timing Chain/Front Cover Revised Procedure
Classification:
EM98-009
Reference:
NTB98-107
Date:
January 15, 1999
GA16DE TIMING CHAIN/FRONT COVER
REVISED SERVICE PROCEDURE
APPLIED ENGINE:
GA16DE
APPLIED MODELS:
1991-94 Sentra (B13) w/GA16DE
1991-93 NX1600 (B13)
1995-99 Sentra (B14) w/GA16DE
1995-98 200SX (B14) w/GA16DE
SERVICE INFORMATION
A revised service procedure for the engine front cover/timing chain has been adopted for the GA16DE. It is no longer recommended to remove the
cylinder head when removing the timing chain/front cover(s). Utilize the following steps when servicing the front cover, timing chain, guides or
tensioner(s)
PARTS INFORMATION
CLAIMS INFORMATION
Please reference the "Revision C" pages of the Nissan "1992-1999 Warranty Flat Rate Information Manual", Section "AG", Op Codes AG12AA,
AG14AA, AG142A, AG143A, AG144A and AG24AA. Also reference Section "CA", Op Codes CA20AA and CA22AA. You will note that the
descriptions and flat rate times applicable to the B13 and B14 vehicles (with GA16DE engines) for these Op Codes have been revised to reflect this
new procedure.
Caution
^ After removing the timing chain, do not turn the crankshaft and camshaft separately or the valves will strike the piston heads.
^ When installing chain tensioners or other sliding parts, lubricate contacting surfaces with new engine oil.
^ Apply new engine oil to bolt threads and seat surfaces when installing the camshaft sprockets and the crankshaft pulley.
^ Do not spill engine coolant on the drive belts.
^ Please refer to the Service Manual for the correct tightening torque.
Removal
1. Set # 1 piston at TDC on its compression stroke.
2. Remove the spark plug wires.
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 2
3. Remove the rocker cover (see Figure 1).
4. Remove the coolant reservoir tank with bracket and reposition it for clearance.
5. Support the engine with a suitable jack.
6. Remove cylinder head front mounting bracket.
7. Remove engine front mounting, then the engine front mounting bracket.
8. Remove cylinder head front cover.
9. Remove the upper chain tensioner (see Figure 2).
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 3
10. Wipe off the links of the upper timing chain next to the timing marks on the sprockets. Put paint marks on the timing chain, matching them with
the timing marks on the cam sprockets and idler sprocket (see Figure 3)
11. Remove the four (4) front cover to cylinder head bolts.
12. Remove side and lower engine compartment splash covers.
13. Remove the accessory drive belts.
14. Remove the crankshaft pulley.
15. Drain coolant by removing the cylinder block drain plug and opening the radiator drain **** (Refer to MA section of the Service Manual).
16. Drain engine oil.
17. Remove intake manifold support of engine front side.
18. Remove power steering pump, pump bracket and tension rod. Position pump aside for clearance.
19. Remove the thermostat housing (See Figure 4).
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 4
20. Remove the lower chain tensioner (see Figure 5).
21. Remove the front exhaust tube. Refer to the "FE" section (Exhaust System) of the Service Manual.
22. Remove the front and rear engine gussets (if equipped) on either side of the oil pan.
NOTE:
On A/T models, remove the rear plate cover.
23. Remove the oil pan (see Figure 6).
a. Insert the Tool between the cylinder block and oil pan.
CAUTION:
Be careful not to damage the aluminum mating face. Do not insert a screwdriver, or the oil pan flange will become damaged.
b. Slide the Tool by tapping it on the side of the Tool with a hammer.
24. Remove the A/C compressor and position it aside for clearance.
25. Remove the A/C and alternator bracket with the alternator.
26. Remove the oil pump drive spacer.
CAUTION:
Be careful not to scratch the drive spacer when removing it.
27. Remove the front cover bolts and front cover.
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 5
CAUTION:
One bolt is located on the water pump (see Figure 7).
*1: Located on engine front mounting bracket.
*2: Located on the water pump.
*3: Located on the power steering oil pump adjusting bar.
CAUTION:
Be careful not to tear or damage the cylinder head gasket.
28. Remove the cylinder block to front cover alignment dowels.
CAUTION:
Do not hit the dowels or the cylinder block will crack.
29. Wipe off the links of the lower timing chain next to the timing marks on the sprockets. Put paint marks on the timing chain, matching them with
the timing marks on the idler sprocket and crankshaft sprocket (see Figure 8).
Installation
1. Install the crankshaft sprocket, making sure the mating marks face the front of the engine.
2. Install the idler sprocket and lower timing chain using the mating marks and the paint marks made during the removal process.
CAUTION:
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 6
Be careful not to tear or damage the cylinder head gasket.
3. Install the lower chain guides.
4. Front cover installation:
a. Using a scraper or other suitable tool remove all traces of liquid gasket from the cylinder block and front cover mating surfaces.
b. Install new crankshaft seal in front cover.
c. Install new oil passage O-rings and apply a continuous bead of RTV sealant to the front cover (see Figure 1).
NOTE:
Use Genuine Nissan RTV silicone sealant P/N 999MP-A7007, Three Bond P/N TB1207D or equivalent.
d. Install the front cover to the engine.
CAUTION:
Be careful not to tear or damage the cylinder head gasket or oil seal.
5. Align oil pump drive spacer with the oil pump, and install.
6. Install the oil strainer.
7. Install oil pan, referring to "Installation" in the "OIL PAN" section of the Service Manual.
8. Install upper timing chain and sprockets, using the painted reference marks made during removal.
9. Install upper chain tensioner.
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 7
a. Before installing the chain tensioner, insert a suitable pin into the pin hole of the chain tensioner (see Figure 2) to hold the tensioner in.
b. Once the tensioner is installed, remove the pin.
10. Install the lower chain tensioner (See Figure 3).
NOTE:
Make sure the gasket is facing the proper direction before installing the tensioner.
CAUTION:
Now rotate the crankshaft by hand. Check that no binding or interference problems occur when the engine is rotated.
11. Install the thermostat housing.
a. Use a scraper to remove all traces of liquid gasket from the mating surfaces of the engine front cover and the thermostat housing.
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 8
b. Apply a continuous bead of RTV sealant to the housing as shown in Figure 4.
NOTE:
Use Genuine Nissan RTV silicone sealant P/N 999MP-A7007, Three Bond P/N TB1207D or equivalent.
12. Install camshaft sprocket cover:
a. Use a scraper to remove all traces of liquid gasket from the mating surfaces of the cylinder head and camshaft sprocket cover.
b. Apply a continuous bead of RTV sealant to the cover as shown in Figure 5.
NOTE:
Use Genuine Nissan RTV silicone sealant P/N 999MP-A7007, Three Bond P/N TB1207D or equivalent.
d. Install camshaft sprocket cover.
1995 Nissan-Datsun 200SX L4-1597cc 1.6L DOHC MFI (GA16DE) Page 9
13. Apply RTV sealant to rocker cover gasket (see Figure 6a) and install rocker cover, tightening the bolts as shown in Figure 6b.
14. Install the following parts:
a. Crankshaft pulley.
b. A/C compressor and alternator bracket with alternator.
c. A/C compressor.
d. Power steering oil pump and tension rod.
15. Install front and rear engine gussets (if equipped), and rear cover plate (A/T models).
16. Install front exhaust tube.
17. Install upper right engine bracket and mount.
18. Install coolant reservoir tank.
19. Install alternator, power steering and A/C compressor drive belts.
20. Install engine compartment splash guards.
21. Install vacuum hoses, electrical harnesses and connectors.
22. Install spark plug wires.
23. Refill with coolant. Refer to the "MA" section ("Changing engine coolant, Engine Maintenance") of the Service Manual.
24. Refill with engine oil. Refer to the "MA" section ("Changing engine oil, Engine Maintenance") of the Service Manual.

Jan 15, 2011 | 1997 Nissan 200SX

2 Answers

How to improve the performance of a ga 13 engine of a nissan sentra?


Let me tell you that I'm also working on that. :-)..
A nissan ga13ds, since it is carbureted, then it is limited on the amount of modifications that are of good value for money, since some of the top end modifications may cost you the price of a brand new nissan sentra + modifications.
Here are some things I did and are planning: -Replace the stock fuel filter assembly to a high performance one. (ex. to a High flow air filter, cold air intake, short ram intake, etc.) -switch to an electrical fuel pump. -upgrade exhaust system. (performance headers, high flow catalytic converter, larger exhaust pipes, racing mufflers. -upgrade to a better radiator (aluminum) + stronger and better fans. (a cooler engine runs a bit faster) -Install an oil cooler again for the same reason of better cooling. -(just my idea) Buy a performance carburetor. (this may be too costly because you might have have an intake manifold custom built) -Replace engine internals to race internals for better performance under High RPM. -Find or custom build racing camshafts to replace your stock. (this will result to better performance at high RPM levels but will not be efficient running the car in a lower RPM range).
You can also improve the performance of the car itself by doing the following: -Saving weight: -Aluminum wheels -carbon fiber/fiberglass/aluminum hood and trunk. -and any other stuff not necessary to you can be removed to save more weight.

I hope these ideas help.

Oct 09, 2010 | 1996 Nissan Sentra

2 Answers

Where is the thermostat located on a 1989 nissan sentra dalet5032@gmail.com or where can i find a diagram


1.6L (GA16DE) and 2.0L (SR20DE) Engines
The thermostat is housed in the water outlet casting on the cylinder head on most models. On the GA16DE engines, the thermostat is housed in the water outlet casting attached to the water pump.

6516731.jpg

Fig. : Thermostat and housing-SR20DE engine

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Fig. : Thermostat and housing-GA16DE engine


dedccd7.jpg

Fig. : Always make certain the jiggle valve is on the top side-GA16DE engine shown

Hope this helps (remember rated this).

Aug 03, 2010 | 1989 Nissan Sentra 4 Door

1 Answer

Tai Ping My nissan sentra , engine B14 had problem, water had seeping into the engine, oil entered the radiator. How to solve?


sorry sounds like a blown head gasket or deteriated water chambers in the head .head will have to come of so a workshop will inspect the head before replacing gasket

Feb 27, 2010 | 1996 Nissan Sentra

1 Answer

Do you take back seat out to replace fuel pump on 94 nissan sentra ex car


Hello there:
no this is a intank fuel pump
Location: In-Tank Type: In-Tank, Electric, Direct OE Replacement Condition: New Part#: REPN314501 $70.00
FITS (ENGINE/CHASSIS)
  • 1994: E; 4Cyl 1.6L GAS, FI, VIN "E", GA16DE;
  • 1994: GXE; 4Cyl 1.6L GAS, FI, VIN "E", GA16DE;
  • 1994: SE-R; 4Cyl 2.0L GAS, FI, VIN "G", SR20DE;
  • 1994: SE; 4Cyl 1.6L GAS, FI, VIN "E", GA16DE;
  • 1994: XE; 4Cyl 1.6L GAS, FI, VIN "E", GA16DE;
  • 1994: Limited Edition; 4Cyl 1.6L GAS, FI, VIN "E", GA16DE;

  • Jan 06, 2010 | 2000 Nissan Sentra

    1 Answer

    97 NZ new, Nissan Sentra Q with erratic RPM indication.


    do you mean the speedometer or the engine RPM ----gearbox??? if its the engine RPM their is no sensor as it reads from the ECU unit which is controling the engine management

    Mar 14, 2009 | 1998 Nissan Sentra

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