Question about 2003 Nissan Altima

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Variable valve timing sticking

Car will start but when turned off will not start back up for hours

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1 Answer

That car needs to be in a repair shop for some serious
diagnostic work & expect to pay for it.
When VVT issues happen, it is usually from
not changing your engine oil very often & using the
correct oil, from the time it left the assy line.
You now have valve cam actuator or solenoid
problems,maybe
Could also just be a bad timing belt,again never
inspected or changed

Posted on Jul 10, 2013

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Posted on Jan 02, 2017

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1 Answer

We scanned it and it shows code P0025. How do we fix it?


this may help. A code P0025 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0025 DTC specifically refers to the camshaft (cam) timing In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. The "B" camshaft is either the exhaust, right, or rear camshaft. Bank 2 is the side of the engine that does not contain cylinder #1. This code is nearly identical to P0022.
Potential Symptoms Most likely a P0025 DTC will result in one of the following:
  • hard starting
  • poor idle and/or
  • stalling
There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
Causes A P0025 DTC trouble code may be caused by one or more of the following:
  • Incorrect camshaft timing
  • Wiring problems (harness/wiring) in intake timing control valve control solenoid system
  • Continuous oil flow to VCT piston chamber
  • Failed timing valve control solenoid (stuck open)
Possible Solutions The main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCT solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit. Notes: Dealer techs have advanced tools and the ability to follow detailed troubleshooting steps, including the ability to test components using a scan tool.

Oct 26, 2015 | Dodge Caravan Cars & Trucks

1 Answer

How do I fix code p1354


The problem could be:

- Dirty or low engine oil
- Valve timing
- Oil control valve
- Variable Valve Timing controller assembly
- Engine Control Module (ECM)

There is an oil control valve on the head that allows oil pressure to change the cam timing. If it gets dirty or sticks, you have this error.

Mar 22, 2015 | 2001 Lexus ES 300

1 Answer

P0341


Be careful, the motor in your car is an interference motor, which means that if you break the timing belt and then try to start it back up, the motor will crush its own valves and damage pistons and who knows what else. timing belt replacement is really cheap compared to rebuilding/replacing a motor. hope this helps. also if you let it idle and open the hood, stick your head by the the timing cover and see if you hear kinda a slapping, ticking type noises. if you do, immediately go to a mechanic and spend the $400-500 to fix it if it isn't cheaper, can't remember what I payed last year. A new/used/rebuilt motor will start around $1800 if your lucky. good luck.

Honda's troubleshooting flowchart shows the following for Code P0341:

  • incorrect timing
  • damaged or stretched chain
  • clogged or stuck open/closed VTC (Variable Timing Control) oil control solenoid valve
  • faulty VTC actuator
  • damaged camshaft position (cmp) pulse plate

Apr 18, 2013 | 2003 Honda Accord

2 Answers

How to fix this problem?


A big vacuum leak will do this it can be from a open PCV valve sticking open EGR valve to a sticking a IAC (idle air control valve) sticking open. You basically have something get stuck and closing.

Mar 09, 2012 | Cars & Trucks

1 Answer

EL VEHICULO TIENE PERDIDA DE POTENCIA Y EN EL SCANNER MUESTRA LOS CODIGO PO0011; PO0012


P0011 - "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
A code P0011 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0011 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is above a set limit (over-advanced), the engine light will be illluminated and the code will be set. The "A" camshaft is either the intake, left, or front camshaft.

Potential Symptoms: Most likely a P0011 DTC will result in one of the following: hard starting, poor idle, and/or stalling. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.

Causes: A P0011 DTC trouble code may be caused by one or more of the following:
Incorrect camshaft timing
Wiring problems (harness/wiring) in intake timing control valve control solenoid system
Continuous oil flow to VCT piston chamber
Failed timing valve control solenoid (stuck open)

Possible Solutions: This DTC code is a result of a mechanical fault of the VCT unit or related components, so there is no need for electrical diagnosis. Refer to vehicle specific repair manual to perform component tests for the VCT unit. Notes: Dealer techs have advanced tools and the ability to follow detailed troubleshooting steps, including the ability to test components using a scan tool.


P0012 - "A" Camshaft Position - Timing Over-Retarded (Bank 1)
A code P0012 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0012 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. The "A" camshaft is either the intake, left, or front camshaft.

Potential Symptoms: Most likely a P0012 DTC will result in one of the following:
hard starting
poor idle and/or
stalling

There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
A code P0012 refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module, also called an ECM). That consists of a few different components but the P0012 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. The "A" camshaft is either the intake, left, or front camshaft.

Causes: A P0012 DTC trouble code may be caused by one or more of the following:
Incorrect camshaft timing
Wiring problems (harness/wiring) in intake timing control valve control solenoid system
Continuous oil flow to VCT piston chamber
Failed timing valve control solenoid (stuck open)

Possible Solutions:
The main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit. Notes: Dealer techs have advanced tools and the ability to follow detailed troubleshooting steps, including the ability to test components using a scan tool.

Hope this helps. Suerte.

May 30, 2011 | Toyota Yaris Cars & Trucks

1 Answer

Car just started sputtering as if a spark wire is loose, but can not tell. We can't find a mechanic book.


Check the variable valve timing control sensor on the top side of the engine either on the left or right side. Looks like something sticking out of the timing cover with wires attatched. This will go bad and cause the engine to run poorly like it is missing with power loss

Nov 04, 2009 | 2004 Nissan Quest

1 Answer

1998 Jeep cherokee classic Popping noise


Sounds like your egr valve is sticking, or a vacuum leak, or sticking valves.

May 06, 2009 | 2000 Volvo S40

2 Answers

Car won't start. Possibly fuel pump related.


Check the engine codes. That will give you clue where to begin repairs. See if youhave a spark on the plugs also.

May 05, 2009 | 1993 Mazda MX-3

1 Answer

Engine light on, rattling valves, truck shakes when start and stop


How many miles on it ? Engine light on ? have it checked for DTC'S -diagnostic trouble codes . could have timing chain issues or a problem with the VVT system - do you know what that is ?
In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems.
Your best bet ,take it to a qualified repair shop ,dealer .

Oct 19, 2017 | 1996 Ford F150 Regular Cab

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