635CSI HELP.

Discuss Non-E30 BMW's in here - No selling!

Moderator: martauto

User avatar
Nogaro325
E30 Zone Regular
E30 Zone Regular
Posts: 461
Joined: Sat Jun 14, 2008 11:00 pm

Post Sun Sep 14, 2008 2:07 pm

Guys got a bit of a problem with my 6 and its doing my head in :cry: .
This has happened twice now just as well i was not going far,anyway here goes.
Took her out for a short run today fired up as normal no problems,went to tescos and on the way back she starts to lose power and sounding like a tractor :roll: .
The engine sounds perfect aside from the missing running on 5 cyclinders sound.
I have replaced all the plugs awhile back along with a new air filter.
Could it be a relay or something really confused :?
Top
cecotto479
Caution Unreliable Seller
Caution Unreliable Seller
Posts: 2949
Joined: Sun May 13, 2007 11:00 pm
Location: On a golf course somewhere probably

Post Sun Sep 14, 2008 4:59 pm

Does it feel as though it's running out of fuel?

I'd have a strong guess at the fuel pump relay. It's one of the two relays on the side of the fusebox. That'd be my first port of call.
1981 E23 735i
1989 E30 325i Motorsport Convertible
Bavarian Retro - Classic BMW Cars, Parts and Accessories - 12.5% discount for forum members on E30 parts - use voucher code "E30zone" at checkout
Top
User avatar
Nogaro325
E30 Zone Regular
E30 Zone Regular
Posts: 461
Joined: Sat Jun 14, 2008 11:00 pm

Post Mon Sep 15, 2008 10:00 pm

Been told it cant be the fuel pump relay,as they work or dont work plus it would not fire up as it would not be getting any fuel so still confused :cool:
Top
Jhonno
Homo Hair
Posts: 20362
Joined: Mon Jan 10, 2005 11:00 pm
Location: FLAT, FLAT, FLAT!!

Post Mon Sep 15, 2008 11:20 pm

I had the same with my 735i.. I think it is they dont like short runs and not getting up to temp.. Soon as you got it hot, and clear its throat it is fine again
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

Image
Top
User avatar
zimmerbimmer1
BMW Parts Meister
Posts: 2250
Joined: Sat May 19, 2007 11:00 pm

Post Wed Sep 17, 2008 11:16 am

Check the plugs to see which is coked up clean it up take the car for a good long run at least half an hour with varied driving.
Check plugs again.

Jhonno is right the old cars didn't like short journeys My 535i sport suffered the same running rough, as soon as I took it on a good run it ran sweet as a nut

:D
Image
Top
User avatar
Nogaro325
E30 Zone Regular
E30 Zone Regular
Posts: 461
Joined: Sat Jun 14, 2008 11:00 pm

Post Sun Sep 21, 2008 4:55 pm

Took the plugs out yesterday,the tips where black and the last plug had a very strong wiff of fuel was also slightly wet with fuel.
So what now?
Top

Return to “Other BMW Chat”