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rough idle
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  1. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    I am new to the VR6 engine but have done much mechanical work for many years. Hoping to pick the brains of people who have experience with these engiens. My neighbors owned it previously but it has been parked for a while. They gave up on it and recently GAVE it to me !!! I just got the car...
  2. Jetta Troubleshooting
    Please read, i need help with my car.. thanks in advance! okay so i have a 2003 Jetta gl 1.8t. when i got it 3 weeks ago i did not know i was supposed to put premium in it. the car already had half a tank (idk if it was reg or prem), I assumed it took reg so i filled it with reg. so as of...
  3. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    Hey guys! first post here! I have a 2.0 Jetta just got a tune up done like 3 moths ago, and like 2 months ago CE light came on, mechanic said it was something related to the Throttle Body, and that it was causing the car to be very unstable while on Idle. Sometimes the RPMS are on 1100 then they...
  4. Jetta Troubleshooting
    Yesterday my car was fine all day and then after parking it for about an hour I went to drive it the idle is really messed up jumpts to 1200ish briefly after starting and then bounces between the normal approx 860 and as low as 200 causing the engine to shake violently. The car has no...
  5. VW Jetta TDI / Diesel / Bluemotion
    Hello, Last week I appeared to have located the source of oil in my coolant coming from the transmission oil cooler and replaced it myself. This is after another shop replaced my engine oil cooler. My engine coolant now seems to be leaking from an unknown source only when under load and it is...
  6. VW Jetta / Bora MKIV 1998 Euro,1999.5 US -2005
    OK so I have a 99.5 Jetta GLS 2.0 5sp Manual and I am having some serious issues. I bought the car and it had problems with the cat converter. Had it replaced last winter. Had new o2 sensor, plugs and cables 2 yrs ago. check engine light on until cat replacement then shortly after went on again...
  7. VW Jetta MKIII 1991–1998
    Hey you guys. I just purchased my first car which is a white 94 jetta gl five speed 2.0. There are an assortment of problems in the car but none that i cant handle and have the knowledge of many people seeing as how I have my father and other people helping me. But there is one problem that im...
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