2CarPros - Car Questions & Answers

2001 BMW 540i Repair Question


Topics covered: Spark, Engine, Transmission.
Mileage: No information provided.

Asked on December 16, 2009

2001 BMW 540i will not start

Transmission problem
2001 BMW 540i V8 Two Wheel Drive Manual 100k miles

just put another transmission in and will not start

Answer

Replied on December 17, 2009

An engine will start without a transmission -you probably disconnected a wire somewhere-Do below and determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it

Tiny Answered by rasmataz
68 questions asked