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1998 BMW 740 hesitating

Tiny
KGURULE
  • MEMBER
  • 1998 BMW 740
  • V8
  • 2WD
  • AUTOMATIC
  • 137,000 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?
Saturday, July 17th, 2010 AT 12:06 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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
DOCHAGERTY
  • MECHANIC
  • 9,601 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
  • 21 POSTS
Camshaft position sensor
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Saturday, April 7th, 2012 AT 6:53 PM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Yeah OK
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Wednesday, January 2nd, 2013 AT 10:40 PM

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