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Volkswagen engine repair questions and answers

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  • Henrique
    Henrique - 2013 Volkswagen CC - Engine - 10/19/2014
    Fuel pump module connector corroded ?
    55k miles, fuel module conector rusted and burnt. Dealer said no warranty. And need to replace fuel pump, module and fix the harness. Is it common problem on VW?
     
    • alex
      10/19/2014 alex
      i haven't heard of it but the connection was probably loose from the factory causing your problem. once you fix it it won't be a problem again. i have worked on tractors that have a plug like that with as little as 44 hours on them.
  • Warner
    Warner - 2003 Volkswagen Jetta - Engine - 10/16/2014
    Why does my car smoke when accelerating up hills, my rpms jump high, and I loose power/speed.
    Bought the car in March, replaced the catalectic convertor, and starter a month later. check engine light is always on, code said cam positioning censer. Replaced that. Next code said miss fire, they were random. Replaced the spark plugs Newest code O2 censer. ...
     
    0 answer
  • Matt
    Matt - 2007 Volkswagen Passat - Engine - 10/12/2014
    Issues starting vehicle
    I have the passat wagon. This car has the key fob that you push into the slot and hold until the car starts then you release it. Over the past few months, when i go to start the vehicle it will turn over, but as the rpms then drop, it doesn't stabilize like it ...
     
    0 answer
  • Lisc78
    Lisc78 - 2000 Volkswagen Golf - Engine - 10/6/2014
    Car stalls while revs low.
    Car stalling as turning. Has started since changed stereo and disconnected battery. Revs randomly jump while idle but not all the time. Please help
     
    0 answer
  • ankur642patel
    ankur642patel - 2012 Volkswagen Jetta - Engine - 10/3/2014
    Engine crank bt does not start
    i checked wiring found ok check ckp & cmp sensor found pk ,check timing found ok, check ecm,cluster,key set ok,fuel system ok,check nozzle pk check high pressure pump ok,chek battery ok,check ckp sensor opposite ring found ok .check all ground wire ok,
     
    0 answer
  • christymedley
    christymedley - 1999 Volkswagen Passat - Engine - 9/27/2014
    The car starts but will not stay running. I was told i might need throttle body
    the car will start stay runnig for a minute but cuts off
     
    • Jimm
      9/27/2014 Jimm
      Several possibilities; engine vacuum leak, vacuum hose disconnected, faulty throttle body, dirty throttle body (try a simple cleaning first).

      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Test these other items listed - before guessing / throwing money at the problem.
      Jimm
      9/27/2014 christymedley
      i did have it checked and it said throttle body but a mechanic came over to look at it and he said it is a sensor either air or crank shift sensor im not sure who to go with if i bring it to a shop do you think its going to be expensive? I changed the fuil filter already
      Jimm
      9/27/2014 christymedley
      also i cant get it to auto zone it starts but will not stay started if i step on the gas it will rev for a minute but then it cuts off
    • Jimm
      9/27/2014 Jimm
      Is there any question or concern with this detail?
      Jimm
      9/27/2014 christymedley
      what can it be ? i was also told to change the crank sensor or an air flow sensor. what does do you think
  • britt52896
    britt52896 - 1999 Volkswagen Beetle - Engine - 9/25/2014
    Engine heating light and bubbling in the Reservoir?
    I was driving home and had about a 20 minute drive to get back to my apartment. My engine heating light came on as it has in the past for two other issues. I had my water pump and my thermostat replaced in the past two months due to over heating in my engine. I ...
     
    • Jimm
      9/25/2014 Jimm
      The most common cause of overheating is because of an external leak from a water pump or a radiator or heater hose. The way to find the leak is to wait till it is overnight cold and maybe just pour water in and see if the leak is large enough to see it simply leak out from where it has a leak. if you pour in a half gallon or more and you still see no leak its time to pressure check the system.

      Here is a short list of possible causes for overheating;

      Low coolant level
      Leaking coolant
      Improper coolant concentration (not at recommended 50 / 50 mix of anti-freeze and water)
      Clogged radiator hoses
      Clogged heater hoses
      Clogged radiator passages
      Clogged heater core
      Faulty thermostat
      Faulty water pump
      Faulty radiator cooling fans
      Faulty radiator cooling fan switch (coolant temperature sensor)
      Faulty / worn serpentine drive belt
      Faulty / worn drive belt tensioner
  • britt52896
    britt52896 - 1999 Volkswagen Beetle - Engine - 9/25/2014
    Engine heating light and bubbling in the Reservoir?
    I was driving home and had about a 20 minute drive to get back to my apartment. My engine heating light came on as it has in the past for two other issues. I had my water pump and my thermostat replaced in the past two months due to over heating in my engine. I ...
     
    • Jimm
      9/25/2014 Jimm
      The most common cause of overheating is because of an external leak from a water pump or a radiator or heater hose. The way to find the leak is to wait till it is overnight cold and maybe just pour water in and see if the leak is large enough to see it simply leak out from where it has a leak. if you pour in a half gallon or more and you still see no leak its time to pressure check the system.

      Here is a short list of possible causes for overheating;

      Low coolant level
      Leaking coolant
      Improper coolant concentration (not at recommended 50 / 50 mix of anti-freeze and water)
      Clogged radiator hoses
      Clogged heater hoses
      Clogged radiator passages
      Clogged heater core
      Faulty thermostat
      Faulty water pump
      Faulty radiator cooling fans
      Faulty radiator cooling fan switch (coolant temperature sensor)
      Faulty / worn serpentine drive belt
      Faulty / worn drive belt tensioner
  • britt52896
    britt52896 - 1999 Volkswagen Beetle - Engine - 9/25/2014
    Engine heating light and bubbling in the Reservoir?
    I was driving home and had about a 20 minute drive to get back to my apartment. My engine heating light came on as it has in the past for two other issues. I had my water pump and my thermostat replaced in the past two months due to over heating in my engine. I ...
     
    • Jimm
      9/25/2014 Jimm
      The most common cause of overheating is because of an external leak from a water pump or a radiator or heater hose. The way to find the leak is to wait till it is overnight cold and maybe just pour water in and see if the leak is large enough to see it simply leak out from where it has a leak. if you pour in a half gallon or more and you still see no leak its time to pressure check the system.

      Here is a short list of possible causes for overheating;

      Low coolant level
      Leaking coolant
      Improper coolant concentration (not at recommended 50 / 50 mix of anti-freeze and water)
      Clogged radiator hoses
      Clogged heater hoses
      Clogged radiator passages
      Clogged heater core
      Faulty thermostat
      Faulty water pump
      Faulty radiator cooling fans
      Faulty radiator cooling fan switch (coolant temperature sensor)
      Faulty / worn serpentine drive belt
      Faulty / worn drive belt tensioner
  • AutoMD Member
    AutoMD Member - 1990 Volkswagen Jetta - Engine - 9/21/2014
    Does my car need a thermostat
    the cooling fan stays on for extended period with engine off,often running battery down With cooler outdoor temperatures problem is not evident.
     
    • RJS3679
      9/21/2014 RJS3679
      Scan the car for faults, a common fault for the thermostat is a cooling system performance fault. If you determine that the thermostat should be replaced, also replace the coolant temperature sensors at the same time, they will fail at the same time as the thermostat or soon after causing the same code to return.
  • elisa
    elisa - 2003 Volkswagen Passat - Engine - 9/21/2014
    Why is the epc light on and the vehicle lose power and shut off
    the epc light came on a month ago while driving and i wasn't able to accelerate and it just shut off. after about 20 minutes I was able to drive it again for maybe a week before it do it again. I had the throttle body changed and it is still doing the same thing.
     
    • RJS3679
      9/21/2014 RJS3679
      EPC light and loss of power means the car entered limp mode. With limp mode, power is decreased greatly to prevent engine damage. Its commonly associated with cylinder misfires. Your first step is to scan the car for faults which you can do at any auto parts store around you for free and then diagnose from there
  • gary
    gary - 2001 Volkswagen Beetle - Engine - 9/21/2014
    Can the turbo make a 'whistle' sound when it kicks in? If so, is it a problem? What is the cause and what is the fix?
    I Engine is a 1.8T with a 5-speed trans.Doesn't seem to affect performance but noise just started. Has only 51000 miles. We are original owner.
     
    • RJS3679
      9/21/2014 RJS3679
      Usually a slight whistling noise when the turbo begins to spool up is common, if you have noticed the noise has become louder over time, the first place to check would be your exhaust system. On the 1.8L turbocharged Volkswagen engine, the turbo is attached to the exhaust manifold. When excessive noise is heard from the turbo, a common cause is an exhaust system obstruction. Check for anything blocking the exhaust stream. Doing so may require you to remove parts of the exhaust to get a clear look. Remove any obstructions you find and the noise should go away. If you don't find any obstructions, reply to this as add an answer for more assistance. The exhaust obstruction is usually the cause in my experience.
  • Rena
    Rena - 2003 Volkswagen Beetle - Engine - 9/21/2014
    Why do I keep needing a jump?
    My daughter has a 2003 vw Beetle turbo. We just got a new battery last week from AAA, I got her a alternator like two months ago, her Starter is good and we just got her coils fixed but for some reason it's like every other day she needs a jump to start her car. ...
     
    • CVO
      9/6/2014 CVO
      It called a parasitic battery drains.

      See this site for instructions ( file is too large )

      http://www.diagnosticnews.com/parasitic-battery-drains/

      or this site

      http://www.popularmechanics.com/.../...ar-battery-drains
    • RJS3679
      9/21/2014 RJS3679
      The vehicle is suffering from a parasitic draw. This means when the key is off, an accessory or electrically controlled feature or module inside the car is still drawing power from the battery instead of deactivating. The best way to find it is to turn the car and key off and stay in the car, see if you hear any noise or anything moving. If not, then you'll need a digital multimeter and you can trace the amperage being drawn from the battery by taking amperage flow readings on power feeds to modules or accessories.
  • jane
    jane - 2006 Volkswagen Jetta - Engine - 9/16/2014
    I did not pass the emissions test on my car. The gas station I went to said it the code was not for the catalytic conv.
    What other issues would not allow me to pass the emissions test. Trying to figure out what else could be wrong?
     
    • Jimm
      9/16/2014 Jimm
      The check engine light is located on the dash and stays on if the computerized engine control system detects an engine performance or emissions problem.

      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.
  • Entamer
    Entamer - 2002 Volkswagen Passat - Engine - 9/15/2014
    Coolant boils over almost instantly after starting car. Temp doesnt read hot though. What is wrong?
    My car started acted up a couple weeks ago. The coolant will boil over after just a drive down the block, but the temperature gauge in the car doesnt read hot. Still sitting at 190. What could be causing my car to overheat like this? The coolant level is where it ...
     
    • jdl
      9/15/2014 jdl
      If the coolant is boiling, I'd double check the temp gage. Where applicable, with most makes and models, with the radiator cap removed, if the coolant starts rising quickly, I suspect a head gasket issue.

      There are several other issues that can cause actual overheating.