too much vacuum? - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 03-02-2011, 12:10 AM   #1 (permalink)
n00b
 
Join Date: Feb 2011
Location: Michigan
Car: 1990 BMW 325i Sedan
Posts: 20
Photos:
terry717 is on a distinguished road
too much vacuum?

If I put a different oil cap on and it starts going through fuel pump relays, is it possible that something is plugged somewhere else creating such a vacuum that the pump is overworking the fuel pump relay causing it to stop functioning after a 5 minute trip? Scenario is: Car was doing fine until I changed the oil cap (OEM cap was busted), then all of a sudden it will go on a short trip, I shut it off, and then the relay stops working. If I change the relay its fine again for another trip till I shut the car off. I have jump wired the fuel pump relay now as relays are getting expensive. Any suggestions...I'm stumped. I plan on soon replacing a lot of items on the car..ie, pump, filter, plugs wires cap rotor, and every relay, as the car sat for a year before I got it. I just am going to be sick if even after replacing everything the problem still exists. Is it possible too much vacuum could cause this. I don't see an actual PCV valve listed in any manual I have. Where would I start? Thanks in advance! Pulling the oil filler cap when it is running lowers the rpms, is this normal? Is the cap supposed to be vented?

Last edited by terry717; 03-02-2011 at 12:12 AM.
terry717 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
v12 vacuum leak? v12 BMW 1,6,7,8 - Series and Mini Cooper 3 03-20-2009 10:58 AM
vACUUM DIAGRAM? BImmerN2B 3-Series (E36) 1 09-28-2005 10:40 PM
Vacuum Hose Diy sennis 3-Series (E36) 4 01-28-2005 02:13 PM
Vacuum Leak RedlinedRU 3-Series (E36) 10 01-19-2005 06:12 PM
vacuum hose? enemigo 3-Series (E36) 1 09-14-2004 02:53 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 07:33 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.