Question about 2004 Volkswagen Beetle

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EGR Valve I had the tech replace the EGR Valve yesterday. At 20 miles the car started to surge again but this time it only surged to 2250 RPM's instead of 3000. I put my foot to the gas for approx 4 sec. surging stopped.

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An engine surge is usually caused by a fuel system management or drivetrain failure. The fuel management system utilizes sensors that monitor emission output and engine performance are communicating with the main ECM (Engine Control Module) controlling fuel mixture, timing and emission management systems. While the engine is surging the ECM is "hunting" by adjusting the fuel mixture and timing. These adjustment are made by the ECM in a isolating manner as the ECM tries to satisfy its coordinates.
These coordinates are not satisfied because of a system malfunction.
Test for DTS's (Diagnostic Trouble Codes)

Posted on Jul 31, 2008

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1 Answer

RPM surges about 500; worsened progressively. After a 1 hour wait, problem appeared to disappear.


Could also be EGR Valve or THROTTLE POSITION SENSOR or FUEL PRESSURE REGULATOR.

May 15, 2016 | 2009 Nissan Altima

1 Answer

Engine rpm surges intermitently


Miles? Have you replaced ignition coils recently? Pretty good chance that they could be going bad. I would start by swapping all 8 coils and plugs and probably changing the valve cover gasket as well as those are known to go bad in the 2000-2003 LS

Mar 11, 2014 | 2000 Lincoln LS

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2000 es300, sometimes surges - last time it seem to lose power could only drive about 20 miles per hour


Check for failed EGR Valve or system component

If the valve has a vacuum hose going to it ,disconnect,
plug hose & test drive to evaluate bad valve & high vacuum
signal as you suggested

Sep 30, 2012 | 2000 Lexus ES 300

2 Answers

1992 f250 occasionaly surges and dies when i stop at lights


there is a pressure feed back sensor going bad all the times
also check the two hoses connected to this sensor for crack or blockage
check the pipe that goes to the egr valve for crack
it won't hurt to pull the egr valve back out to check to see if there is any thing cause the valve to stay open

Mar 07, 2010 | 1992 Ford F250

2 Answers

Truck has been dying surging and dying when i come to stop at li


Try shifting to nuetral at stop signs for now. Will it keep running in gear with you foot on the brake? How about with the parking brake? You may have a simple vacuum leak at the brake booster.

Mar 07, 2010 | 1992 Ford F250

1 Answer

My 1994 s10 blazer was runing fine then started missing and surging now when try starting it turns over fine one time then like out of time will start then die


the one possible problem is the egr valve. If your blazer has the Vortec 4.3, the valve is located on the front of the intake manifold. You must remove the intake rubber boot on the throttle body to see it better. It's very possible that there is chunks of carbon holding the valve open. I recommend cleaning the egr valve ( carb. cleaner works great ) and replacing the Egr gasket with a screened gasket. This will take care of it stalling and surging.

Feb 18, 2010 | 1994 Chevrolet S-10 Blazer

1 Answer

Has low power, surges @ cruizing speed, rough idle (code 32)


You can remove the egr and see if it has been sealing,and if it still moves.

Jan 29, 2010 | 1993 GMC Sonoma Club

1 Answer

I have a 2001 mustang with a 3.8l I have a trouble code P0104


It is the DPFE sensor with out this your rpms will continue surge. Alot of people make the mistake of just replacing the EGR valve instead of the DPFE sensor which measures exhaust prssure going through the EGR vavle.

May 07, 2009 | 2001 Ford Mustang

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