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Bmw 1997 m3 car starts & runs great cold after warming up won't start

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You may have the fuel feed too close to hot item in the engine compartment. This will cause an airlock in the fuel line

Posted on May 07, 2014

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6ya6ya
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Posted on Jan 02, 2017

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chiquititas
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SOURCE: 1997 BMW M3 3.2 EVO

Your fuel injection pressure is probably leaking down causing gasoline to leak into the cylinders and resulting in a hard hot starting condition due to "flooding" of the engine. Try holding the accelerator pedal all the way to the floor of the car like your trying to go maximum speed down the highway and crank the engine for 10 seconds or less at a time. That tells your computer to enter the "clear flood" mode and stop injecting gas into the engine. Ask your repair shop to measure the fuel pressure and see if the pressure is bleeding off too rapidly.

Posted on Jul 03, 2008

  • 67 Answers

SOURCE: poor starting problem bmw 318 ti

WARNING! Always wear protective eyewear, gloves and necessary clothing before inspection or work begins. Never crank an engine over when you are near the battery or engine. A battery is filled with explosive gasses that can ignite when extreme heat or a spark is present. A battery could have residual acid on the outside casing so use caution when handling a battery and the surrounding area. Use baking soda to neutralize any suspected acid residue before work begins.

You can check the car battery using a multimeter or voltmeter an electronic one is preferred , connect the black wire to the negative side (-) and the red to positive , WARNING :DO NOT CROSS THE RED AND BLACK WIRES OR SHORT CIRCUIT THE LEADS OF THE BATTERY OR MULTIMETER YOU CAN GET SERIOUSLY HURT!!!!! you should also get a spare watering can and fill it with water ,  (dont reuse for other purposes for safety) and remove those little tabs (usually around 4 or more) and fill it up very little in each tab/cap make sure you DONT fill it to the top. The good condition of a battery is 12.5 and 12.8 volts on the multmeter and when the car is started it
(not driven just started) should around 14V which shows that your alternater (acts as battery charger when driving) is working properly.

Posted on Nov 14, 2008

  • 5 Answers

SOURCE: TC 212 & 214, hard to start but runs well after starting.

Possibly a Battery going bad, check your connections, if they are tight then you may need a new batter, if they are loose, then tighten them. (If the problem persists after tightening, have battery checked)

Posted on Mar 23, 2009

ronaldo_ross
  • 1056 Answers

SOURCE: My 1997 GMC Safari Van will not start when cold

Check for a bad temperature sensor. To check it, remove it first. Using an ohmmeter measure its resistance, which should decrease when dipped in hot water. If the the resistance remain high and doesnt change then you know it is bad, and you don't end up wasting money on buying one when it is still good.

Posted on Aug 12, 2009

  • 5 Answers

SOURCE: engine keeps flooding itself, and wont start when warm

leaky fuel injectors or a bad fuel pressure regulator could be the cause. check the fuel pressure. should be 3.0 to 3.5 bar.

Posted on Aug 30, 2009

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2 Answers

97 m3 bmw starts fine cold after warming up hard to start


it could be the starter, they can be affected by heat from being near exhaust components, or it could be the starter solenoid... also bad ignition timing could cause that

May 06, 2014 | 1997 BMW M3

1 Answer

Runs fine when cold, not when warm though


The next time it won't start check the fuel pressure you should have 48-55 psi with key on and engine off.

Jan 06, 2012 | 1997 Buick LeSabre

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My BMW 520i starts up when cold but when it's warmed up and I turn engine off it won't start it's a 1997 straight six tiptronic whats causing this?


If the engine cranks but fails to fire, the car may be flooding due to a failed temperature sensor. There are several, but the most likely problem would be the water temperature sensor.
If the engine fails to crank when hot, the starter motor is failing and will need to be replaced.

Jun 23, 2011 | BMW 525 Cars & Trucks

1 Answer

Cold starting problem


you could have a couple differnet issues. cold start misfires, an intake air leak, poor compression with engine cold,or a fuel pressure issue with a leaking injector or fuel pressure is bleeding back due to a faulty pressure regulator. my recommendation is to buy a fuel pressure gauge and monitor pressure overnight. you could also pull the fuel rail and see if an injector is leaking at the same time. you can spray the intake system with a highly volitile liquid(with engine running) to see if idle speed changes to check for an air leak

Apr 27, 2009 | 1999 BMW M3

1 Answer

Bmw m3 e36 idle problem


sounds like an EGR valve problem. it is probably clogged. get a tech to clean it or replace it and you should be good to go. if not it could be the MAF sensor or fuel delivery problem (fuel pump or injector problems?) or CPU.it is best to scan for diagnosis.

Mar 25, 2009 | 1997 BMW M3

1 Answer

M3 heaters problem


Yeah it has dual climate control, and your solution(FTjoe) that's probably the problem,Not checking the temp settings on both sides..makes me wonder how to mis it 'cause the tempsetting display is digital under/next to the < > buttons, hihihi.

Jan 08, 2009 | 1997 BMW M3

2 Answers

97 M3 chokes on clold start.


The E36 M3 is natorious for having some minor enigine hesitation immediately after a cold start. My car does this for about the first block both in the morning and after work. Its part of the engine management start routine: you will see this more specifically if you just start you car when its cold and let it idle. Initially you'll notice that the idle tone is a bit more rumbly and rough; but after about minute or so you'll notice that pitch changes and smoothes out. I was alarmed about this too, but after some research, I found it was a characteristic of the design. Just take it easy for the first block and you will never notice. Don't ever cold rev your engine. - Hope that helps.

Jul 22, 2008 | 1997 BMW M3

1 Answer

1997 BMW M3 3.2 EVO


Your fuel injection pressure is probably leaking down causing gasoline to leak into the cylinders and resulting in a hard hot starting condition due to "flooding" of the engine. Try holding the accelerator pedal all the way to the floor of the car like your trying to go maximum speed down the highway and crank the engine for 10 seconds or less at a time. That tells your computer to enter the "clear flood" mode and stop injecting gas into the engine. Ask your repair shop to measure the fuel pressure and see if the pressure is bleeding off too rapidly.

Jun 28, 2008 | 1997 BMW M3

1 Answer

Poor starting problem bmw 318 ti


www.pelicanparts.com They have technical info that may help. Or try www.bimmerforums.com . You can ask questions and get answers for free there too.

Jun 14, 2008 | 1997 BMW 318

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