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2004 Jetta rattles and wont accelerate

Tiny
MSLYDIA
  • MEMBER
  • 2004 VOLKSWAGEN JETTA
  • 6 CYL
  • FWD
  • MANUAL
  • 160,000 MILES
Out of no where my car started bogging down this morning. When you engage the clutch it rattles. When you shift and let off of the clutch and onto the gas the rattling subsides but the car doesn't pick up speed like it normally would.

About a year ago I had an accident and messed up the exhaust; it was disconnected from the engine near the catalytic converter. Because it was most economical, the garage I took it to said it would be fine just to weld the exhaust where it had disconnected.

I have had no issues for the last year and am not sure if these two situations are related or what the problem might be?

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Thursday, March 3rd, 2011 AT 7:55 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light on?

Lack of acceleration, chugging, hesitating********, bogging, misfiring etc. Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
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Thursday, April 14th, 2011 AT 9:48 AM

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