1998 BMW 740 hesitating

Tiny
KGURULE
  • 1998 BMW 740

Engine Performance problem
1998 BMW 740 V8 Two Wheel Drive Automatic 137000 miles

1998 BMW 740il, driving down the road - tried to accelerate and now it wont go over 2000 rpm. It feels like it is missing really badly. What could it be?

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Saturday, July 17th, 2010 AT 12:06 PM

4 Replies

Tiny
RASMATAZ
  • MEMBER

Possibilities: Inspect and test all the following listed 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.
False air leakage.
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.

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Saturday, July 17th, 2010 AT 10:22 PM
Tiny
DR. HAGERTY
  • EXPERT
  • 9,737 POSTS

It sounds like the fuel pressure is possibly the culprit.

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Sunday, July 18th, 2010 AT 12:11 AM
Tiny
JINYFOOT
  • MEMBER

Camshaft position sensor

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Saturday, April 7th, 2012 AT 6:53 PM
Tiny
DR. HAGERTY
  • EXPERT
  • 9,737 POSTS

Yeah OK

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Wednesday, January 2nd, 2013 AT 10:40 PM

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