Question about 1997 BMW 318

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With my bmw318i 1997.i have difficulty starting hot or cold.the only way i can start is turn key on wait for about 30 seconds then start 70% time will start. if i turn the key fully straight away no chance .had new fuel pump,and filter starter moter cam shaft sensor all by bmw specialists and still have problem.when started initialy gives the effect of flooded coughing but car drives good and smooth.the bmw workshop said they replaced the cam shaft sensor 3 times ???

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  • BMW Master
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Look for bad grounds in the ignition circuit.the corrosion is creating a voltage drop,but time and heat decrease the resistance..

Posted on May 13, 2009

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Posted on Jan 02, 2017

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Lexus sc 400 anti thieif could this be why my car don't start


Yes, car will not start or will start and run for about 20 seconds and shut off if the anti theft system is active. The theft system will either disable the starter circuit, cut the fuel injector circuit or both. Sometimes you can lock the doors with either the key fob or electric door locks, then open manually with a key and then lock with key fob, wait 30 seconds and unlock with key fob or key. Occasionally that will reset the system, or turn on ignition 3 times for 10 seconds each without starting the car, (turn key to where dash warning lights illuminate, but not to the start position), wait 30 seconds then start the car, for the ECM to relearn the key code. If that doesn't work, most likely will have to be reset at a dealership. Good luck!

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One way to test for this condition without any tools is like this:
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Apr 21, 2012 | 2011 Kia Sorento

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I have a 2003 explorer sport. It starts up fine when it's cold, but if the temp is above 90, once I shut down it wont start back up. It will turn over , but quikly dies out even when pressing down on...


you have low fuel pressure for some reason, pump may be going or fuel pressure regualtor on fuel rail is bad.

pressure should be 43 psi, key on , engine off. and 34 with engine running.

Try this to confirm low pressure. Turn key to on and listen carefully for the pump to hum for 5 seconds. When it shuts off, turn key off. wait 30 seconds or until you hear relay click under dash. then turm key on for 5 seconds. repeat one more time. Then try to start engine. If it starts right up, pressure was low.

What you did was prime the system and built up pressure before start.

The pump only runs for 5 seconds when you turn key to ON, unless the engine starts. Then it stays on.

report results. please rate answer

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Check your battery terminals and the hot lead on the starter make sure they are clean and tight. If they are you are most likely will need a starter.

Feb 14, 2010 | 1991 Toyota Pickup

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Will not turn over when hot new starter silonid and battery will start when cold but havta turn key several times


The engine is seizing up when hot. Have the compression checked on all pistons starting when its cold and wait 10 more minutes and do it again when its warmed up. You may get different reading telling you the rings are sticking causing the hard to start when hot

Jan 25, 2010 | 1996 Chevrolet Cavalier

1 Answer

1997 BMW318I, new battery, all lights come on, on the dash, turn key and only a click noise is made,won't start engine.


check the battery lead are tight, and clean for dirt. check the lead from the battery to the starter motor, if that ok. it could be the starter need replacing.

Jul 19, 2009 | 1997 BMW 318

1 Answer

With all controls off it blows hot air even on the coldest setting


try this relearn procedure.

turn key on engine not running
set controlls to: vent, tempature cold, fan on low
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disconnect battery
wait 30 seconds
reconnect battery
turn key on do not start engine
wait 90 seconds while system recalibrates
turn key off
now start the engine and recheck for a/c operation

if this dosent fix the tempature controll than you will need to replace the blend door motor
and it is behind the glove box, it is black and has one plug on it. if you have to replace it make sure
you go through the relearn procedure afterwards.

wesleyschacht@hotmail.com

Jun 14, 2009 | 1998 GMC Jimmy

1 Answer

Sometimes wont start


it may have a bad check valve in the fuel pump try this when it has to crank for a long time to start turn key off wait 5 seconds turn key on wait 10 seconds and rpeat 3 times if it starts right up the problem is the check valve in the fuel pump if not you need to find out if it si spark or fuel but sounds like it is the check valve sticking in the fuel pump

Nov 01, 2008 | 1998 Chevrolet S-10 Pickup

1 Answer

Engine won't start first time, but will after short pause on second attempt


try this turn key on but don't crank count to five and do it once more now turn key off and then start if it starts right up by doing this the fuel pump is loosing it's prime it has a check valve in the pump that sticks

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1 Answer

My son ran the TDI bone dry of desiel fuel and now it will not start


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if there is no manual primer try turning the car to the on position (with the engine off) and wait for five seconds and do this at least five times wait for 30 seconds with the key off and then turn the key to on wait five seconds then start.

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