Question about 2001 BMW 325

1 Answer

Hard to start

1995 BMW 325i convertible; very hard to start, runs great once started. Changed fuel pump, fuel pressure regulator, and ECM. It has to crank and crank before it almost starts, then it finally starts (sometimes it doesnt) very inconsistant.

Posted by on

  • zjmbo Jul 23, 2009

    Battery is fully charged, as I said, it cranks and cranks at full power ... if it does start it runs great. Could it still be the injectors if it runs well?

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 56 Answers

You can Check the batter at an autozone and if it passes it could be your injecters that could be dirty, but its most likey the battery is at low charge

Posted on Jul 14, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1992 Ford F350 - 7.3- 4 wheel drive. Light on dash says water in fuel and fuel filter. I changed fuel filter, did not help, changed fuel pump, checked fuel and there is no water.


The built in pressure relief valve in the fuel pump may be defective in the fuel tank, this causes fuel pressure to bleed off and causes hard starting..

Oct 31, 2016 | 1992 Ford F350

1 Answer

1992 F350-7.3 4wheel drive is hard to start after changing fuel filter and fuel pump. Why is it hard to start?


indicates fuel leak back and fuel pressure drop
check filter installation for seal not sitting properly, loose fuel line fitting , pump installed correctly (flow wise ), filter installed correctly (flow wise)
air getting in to fuel lines
the thing you are looking for is indicated by the initial hard start but when started runs ok ( good fuel to the engine eventually) and then by the fact that if the engine is allowed to sit for a long period the problem returns meaning that the fuel pressure is not being held
could even be a problem fuel pressure regulator allowing the fuel to bypass ( no pressure =hard starting) then gets enough pressure to run ok but allows that pressure to drain off over time

Oct 29, 2016 | 1992 Ford F350

2 Answers

I have a bmw e30 325i it cranks but will not start so what can I do to fix it?


Fuel Pump - can you here the pump (usually under the right hand back seat) running with ignition on?
Fuel Delivery (injectors) - squirt some fuel (just a cap full) into the manifold.
Spark - pull a lead off a spark plug and use a spare spark plug resting on the exhaust manifold.
Crank sensor - Injectors won't inject fuel if the ECU thinks the engine isn't turning. Crank sensor is at the front right lower side and as it gets older, the wire gets brittle and breaks most of the time where it meets the hard end. The connector is under the throttle body and should read 500-600 ohms.

bmw-e30-325i-cranks-but-will-not-start-0egsa4g0vt3f5pkv1piq2dve-5-0.jpg

Dec 26, 2014 | BMW 325i Cars & Trucks

2 Answers

1991 chevy lumina wont start after sitting when you drive it


Just because you replaced the fuel pressure regulator does not mean it is working correctly; which is the most common cause of your problem. Hook up a fuel pressure guage and watch what happens when you are starting it cold - it should go up to about 47 PSI and once started it should read between 40-47 PSI, then when you turn the engine off: Does the pressure drop? There is a check valve built into the fuel pump also; that can be faulty and if the pressure is generally reading low and the check valve is bad- this can also create your problem. We have run into this before also; When the fuel pump is cold the internal pump seals are sealing great, but after a period of running time the pump seals lose sealing power and if you try to start it again it will be hard to start. The biggest thing with this situation is getting the fuel pressure readings at the following points of time:: Start-up, running cold, running at normal operating temp, engine off, engine re-start.
Pete/ Bambenek Auto LLC

Apr 15, 2014 | 1991 Chevrolet Lumina

1 Answer

Help with 95 firebird 3.4 no start


you have fuel pressure but the fuel pressure regulator can be bad

Nov 23, 2012 | 1995 Pontiac Firebird

1 Answer

2004 gmc sonoma why does it take 2-3 times cranking before it starts and only does it sometimes?


install pressure gauge and watch when key is turned off to see if pressure drops to zero if so bad drain back valve in fuel pump replace it or deal with it or could be cheap aftermarket pump and has hard time building unnecessary pressure to open poppet valves between before fuel injectors

Oct 23, 2012 | 2004 GMC Sonoma

1 Answer

I just changed the two belts that run my engine and the water pump and the idler pulley. I have a 2003 bmw 325i. It was running great since we did the repairs for about 1 month now! Now all of a sudden my...


When you say that it tries to start but does not turn over - I interpret that to mean that the starter is cranking the engine, but the engine fails to start. Is that correct?
The ignition on these cars occasionally looses a single coil, but is not prone to loosing all ignition on all cylinders at once, so probability indicates that the problem is lack of fuel delivery.
This car is prone to two fuel delivery problems: 1) Failure of the fuel transfer pump that moves fuel from the driver side tank to the passenger side tank where the fuel delivery pump is located. If the car runs out of fuel when the gas gauge registers 1/4 full, and runs again if you add more fuel, this is the problem. 2) Failure of the fuel delivery pump. This is less common, but my wife's '04 330 lost a fuel pump at 80k miles, so it can happen.

Feb 04, 2011 | 2003 BMW 3 Series

1 Answer

I have a 1997 rav 4 .it will crank overlots of fuel pressure 45 lbs .spark is not a problem prime it and it will start everytime.the power to the injectors is only there for a split second because i had a...


I had same problem on 1996 gmc. It would start great and run great if you primed it with gas. The fuel pressure was at 55lb. It turned out itwas the fuel pump. The injectors on my truck needed more pressure to start but after starting this was enough pressure to run. I ran my truck for 4 months before the fuel pump quit alltogether. Once I changed the pump it started perfectly. Hope this is helpful. Sudbury, Ontario, Canada

Jun 29, 2010 | 1997 Toyota RAV4

3 Answers

I have a 1995 GMC Jimmy that won't start.


It sounds like a faulty fuel pressure regulator. When you turn the key to the on position the fuel pump starts for an instant to build pressure in the fuel line. If the pressure regulator has allowed too much leakage since the last start then the fuel pump does not have enough time to prime the line. The fuel pressure will still measure ok when the car is running because the leakage is very low. Try turning the key off and on a few times prior to starting and see if the extra pump priming steps help. Also check the vacuum line to the regulator because it needs vacuum to work correctly.

Sep 06, 2009 | 1995 GMC Jimmy

1 Answer

I have a 1989 325I BMW. Some it times won't start.


check fuel filter and/ or replace check pump and or replace

Jul 02, 2009 | 1993 Chevrolet S-10

Not finding what you are looking for?
2001 BMW 325 Logo

Related Topics:

301 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Anthony Jones
Anthony Jones

Level 2 Expert

128 Answers

Frankie B

Level 2 Expert

65 Answers

Doberman

Level 2 Expert

254 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...