99 BMW 323i losing power to engine - Engine Troubleshooting


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

Strut spring orientation and strut mount tension nut

2017 Nissan rogue awd 2.5 L Put in Monro...

Transmission stuck in part, I have tried everything

So I'm working on my elderly fathers 201...

2017 dodge journey LED headlights on/off randomly

Year of vehicle 2017 Make of vehicle dod...

Kia Soul starter replacement issues!

Okay so my car is a 2010 Kia soul 2.0 en...

Please Help - Knock sound & engine fail

Hi all, Hoping to get some insight and ...

multiple warning lights

2013 GMC Terrain 130,000 miles 4 cylinde...

03 alero no low speed blower

Good day everyone, I have a 2003 Olds a...

04 Chevy 2500hd tail light issues

Help!!! I have changed my combo switch...

1999 Grand Caravan Sport not starting.

Hi. I'm new here. I hope someone can hel...

Brake Seals Bulging

2021 Toyota Corolla LE 1.8l 65,000 mile...

99 BMW 323i losing power to engine

Sign up here!

Search for (search options)

Auto Repair Home>> Automotive Repair>> Engine Troubleshooting

thereign83
New User

Oct 24, 2012, 10:03 AM

Post #1 of 4 (4482 views)

99 BMW 323i losing power to engine	Sign In

I need help because I cannot figure out whats going on with my BMW. I have a 1999 BMW 323i four door sedan that is losing power to the engine, when I first crank up my car it works perfectly fine, when I crank it up for a second time in a short time span it cranks up then loses power as soon as I either step on the brake or decelerate, if I crank it up for a third time in a short time span it won't crank up at all, it just rolls over. When I let it sit for a couple hours afterwards it cranks up fine with no issues. I have a new batter and I've also have a new alternator, so the vehicle is getting power just fine, engine just dies.

If anyone has any ideas as to why the engine would lose power when cranking it up multiple times in a short time span please share. Is it an electronic issue with a relay? Or is it possibly the starter going bad?

(This post was edited by thereign83 on Oct 24, 2012, 3:20 PM)

nickwarner
Veteran / Moderator
nickwarner profile image

Oct 24, 2012, 5:12 PM

Post #2 of 4 (4397 views)

Re: 99 BMW 323i losing power to engine	Sign In

If the starter was bad it wouldn't turn over. It seems like your engine is turning over at the proper speed but not able to stay running. You should have trouble codes stored in the ECM. Get them scanned and post the exact code numbers here.

Check fuel pressure, it sounds like you may have a fuel starvation issue. When was the last time you changed the filter?

thereign83
New User

Oct 24, 2012, 5:18 PM

Post #3 of 4 (4396 views)

Re: 99 BMW 323i losing power to engine	Sign In

I haven't changed my gas filter since I've had my car, It also might be the fuel pump relay.

(This post was edited by thereign83 on Oct 24, 2012, 5:19 PM)

nickwarner
Veteran / Moderator
nickwarner profile image

Oct 24, 2012, 5:41 PM

Post #4 of 4 (4390 views)

Re: 99 BMW 323i losing power to engine	Sign In

You need to verify fuel pressure first. if you suspect a relay you would need to backprobe it while running to see if it is cutting out and allowing a pressure drop.

If you have never changed the fuel filter, do it now. I change mine once a year.

Search for (options) Privacy Sitemap