2005 VW Jetta Problems With RPM
20

Asked by madeline1998 Aug 21, 2011 at 09:01 PM about the 2005 Volkswagen Jetta 2.5L

Question type: Maintenance & Repair

Hi Everyone, my 2005 Jetta has been doing some weird things.  My engine light does not come on but my RPM's when accelerating sometimes will jump and I have to really push on the gas to gain some speed.  It surges I guess is more like it.  Also, i hear a booming noise sometimes when slowing down the car.  This does not happen all the time just periodically.  I took it to the mechanic and he told me that he thought it had something to do with the fuel I was using.  I have been using 89 octane for the last 6 years.  So I changed to 92 octane and the performance is better.  I did this about 2 weeks ago.  I have not had that problem until yesterday it started acting up again.  Any suggestions?

2 Answers
305

Sam answered 12 years ago

is your jetta turbocharged? if it is, it might be going into limp mode. check this article http://www.elitedubs.com/index.php?topic=988

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20

madeline1998 answered 12 years ago

Thanks so much for the reply. Found out its a valve body issue unfortunately. $3,400 to fix.

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