Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > maXimum Tech > 3 Series > E30 (1983 - 1991)
User Name
Password


Welcome to Maxbimmer.com!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-29-2014, 05:57 PM   #1
JYPark
1st Gear Newbie
 
Join Date: Mar 2013
Location: Markham
Posts: 14
Is this sympton of a bad ignition switch?

Hi,

I drive a 88' 325i and sometimes when I turn the key to start the car, it cranks for a few (up to around 5 seconds) before starting. For a week, it did this every time; then, all of a sudden it stopped and started up right away for a week. Now, it does this maybe once every 3-5 times. The starter checked out fine, I just replaced the alternator, and the battery is also new. I don't smell fuel so I don't think it's a leaking fuel injector or fuel pump related as when it's on, I don't have any power drops or anything like that happening.
When I was at the shop getting my alternator replaced, I was told it could possibly be an ignition switch not sending a signal to the computer to tell it to turn on. (something along those lines).
Does this seem right? If so, I'm visitng Bimmer Heaven this weekend to grab some parts so thinking about getting a used ignition switch as well since the DIY seemed fairly simple to do with basic tools.
Any ideas what else could be causing this?
Thanks in advance,

Jason
JYPark is offline   Reply With Quote
Old 10-29-2014, 06:33 PM   #2
Ceeker
Parts hoarding partner...
 
Ceeker's Avatar
 
Join Date: Nov 2007
Location: Toronto
Posts: 3,384
I highly doubt it. the ignition switch sends the signal to crank the starter. If it isn't working it won't do anything.

I suspect like most e30's it's leak down. this sometimes happens with my car when I shut it off after driving short distances. fuel continues to get dumped into the combustion chamber after shut down making for a hard start next time around. nothing to concern yourself with. I've had a good few e30's that did the same thing.
__________________

I think I've had 14 bmw's in 4 years.
2 IX's -sold and parts
2 325i 4 dr - sold
4 318is all white - sold and parts
1 87 325is red - parts
1 89 325i vert grey - parts
1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
Ceeker is offline   Reply With Quote
Old 10-30-2014, 01:50 AM   #3
JYPark
1st Gear Newbie
 
Join Date: Mar 2013
Location: Markham
Posts: 14
Ahh I see, thanks for the information.
Have you found a fix or is it just something you just decided to live with?
It's not a huge issue as long as it doesn't affect drivability or leave me stranded, but I'd like to get it fixed if possible.
I'll do some research but if you have a link with some information on how to fix it that'd be great!
Thanks
JYPark is offline   Reply With Quote
Old 11-05-2014, 09:35 PM   #4
SubDad
2nd Gear Member
 
Join Date: Apr 2012
Location: Ottawa
Posts: 172
I think intermittent hard starting is a symptom of a bad fuel pump relay.
SubDad is offline   Reply With Quote
Old 11-06-2014, 07:02 PM   #5
Ceeker
Parts hoarding partner...
 
Ceeker's Avatar
 
Join Date: Nov 2007
Location: Toronto
Posts: 3,384
Quote:
Originally Posted by SubDad View Post
I think intermittent hard starting is a symptom of a bad fuel pump relay.
it's possible..or can be one of, or a combination. even a bad or weak fuel pump can cause it as well. depends on the mileage of the car and whether the pump has been changed. I have perfectly good working cars and all exhibit the same traits. sometimes it's a hard start..most times not.
__________________

I think I've had 14 bmw's in 4 years.
2 IX's -sold and parts
2 325i 4 dr - sold
4 318is all white - sold and parts
1 87 325is red - parts
1 89 325i vert grey - parts
1 90 325is white - keepin
1 87 325i vert -red - keepin
latest addition 1 88-325is red - parts
latest addition 1 89-325i vert - white -fixin/sold
latest addition 1 92-318i vert - blue - parts
latest addition 1 87 325is blk - parts.

latest addition as of 2013-Gold 87-325is auto! it's a keeper!
Ceeker is offline   Reply With Quote
Old 11-10-2014, 02:27 AM   #6
JYPark
1st Gear Newbie
 
Join Date: Mar 2013
Location: Markham
Posts: 14
Hmm, I'l report back once I get to replacing the fuel pump, other priorities first
JYPark is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On

Forum Jump


All times are GMT -4. The time now is 01:17 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Maxbimmer Copyright 2001 - 2014