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DISCUSSION => Engine + Driveline => Topic started by: mrhinton on December 05, 2008, 04:13:57 PM

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 04:13:57 PM

my m42 wont start. this is a video of the sound it makes. driviing down the street it sputtered. then. this. please help!

 http://www.youtube.com/watch?v=qIP8YuvFuQ8

http://www.youtube.com/watch?v=ixIYW5RmStM

Title: my m42 wont start. help!
Post by: EN318isPDX on December 05, 2008, 05:02:21 PM

edit

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 05:02:58 PM

but i smell fuel coming out of the exhaust!

Title: my m42 wont start. help!
Post by: EN318isPDX on December 05, 2008, 05:04:08 PM

edit

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 05:09:49 PM

moderately new fuel filter. bought in july.

Title: my m42 wont start. help!
Post by: EN318isPDX on December 05, 2008, 05:17:48 PM

edit

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 05:26:51 PM

new pump too.

Title: my m42 wont start. help!
Post by: bearsbmw on December 05, 2008, 05:58:36 PM

check fuel pump fuse or relay

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 06:23:05 PM

do you know which relay is for the fuel pump?

Title: my m42 wont start. help!
Post by: JP 91iS on December 05, 2008, 08:01:16 PM

Here's a picture of the fuel pump relay location (http://www.m42club.com/forums/showpost.php?p=61326&postcount=7)

There's a lot of good test procedures in the Bentley.  First make sure you're getting spark and then make sure your fuel pump is working.

What kind of work have you done on it recently before the problem?

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 08:09:14 PM

like i said there is a new fuel pump in there. i swear it sounds like spark plugs but im unsure. no special work was done on it really. im going to check the fuel pump relay right now.

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 08:14:43 PM

nope. not the fuel pump relay.

Title: my m42 wont start. help!
Post by: mrhinton on December 05, 2008, 08:20:07 PM

how can i tell if there is a spark or not?

Title: my m42 wont start. help!
Post by: nomad on December 05, 2008, 09:34:54 PM

get a lighting spark plug wire tester (harbor freight) and disconnect one wire at a time, put it in one of the wire ends and crank it over.
Change spark plugs, see if there is oil or water or a mix in the cylinders.

Title: my m42 wont start. help!
Post by: nomad on December 05, 2008, 09:40:16 PM

Also, check all your electrical connectors in the engine bay. You could have a plug that fell out, maybe wasn't all the way in.

Did you mess with the spark plug wires and put them back incorrect? (probably not eh)

ICV connected correctly? It has an electric plug on it too