Question about 1997 BMW M3

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1998 f700 gas when it is cold runs fine as soon as the engine warms up it back fires in the carb. shut the key off and turn back on runs fine for a couple of blocks and acts up again

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 5370 Answers

SOURCE: bmw 530d e39 2002 car

Most probably its a low fuel pressure related problem.Get the fuel pressure checked.If its low then this is faulty fuel pump and clogged fuel filter issue.the other possibilities are,-----

A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also this problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt.If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced.If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the care. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If it very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gage and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem.Thanks.Helpmech.

Posted on Nov 12, 2010

no_signal_sw
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SOURCE: My 740IL BMW (1998) started squealing. Most of the

Have you looked at your belt? That could be a big squeaker. Hope this helps. James Booth :)

Posted on May 20, 2011

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Starts fine runs fine. After turned off, will not start. Wait or try again and it starts. What's wrong?


Car will sometimes not start after warm. - CarGurus

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Blazer has to be jumped, then i shut it off and won't start.

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CarGurusDec 21, 2013 - I jumped it and it ran fine, but as soon as I turned it off I couldn't start it again. No clicking just like the battery is drained. ... Then run the car for ten minutes and shut it off and if does not start, replace the battery. ... Blazer starts fine first time but after shutting off,has hard time starting-takes up to 10 key turns or ...

Engine Performance Problems Due to Crankshaft Position ...

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Jan 05, 2016 | Cars & Trucks

1 Answer

1988 1500 pickup with a 350 in it. Why does it abruptly shutoff when warm?


Ignition module getting hot and shutting down. Does it have spark when it dies or can it fire right back up ?

Jul 14, 2015 | Chevrolet Chevy Cars & Trucks

1 Answer

1991 Ford F-350 runs rough at cold start, dies if gas peddle depressed?


because the combustion inside the engine is going wrong the quantity of air getting inside is not the needed quantity maybe less than or more in cold will cause such problem once the engine warm up than the engine temperature is up you will not find this problem because the point of firing will be near

Jan 02, 2014 | 1991 Chevrolet C1500

1 Answer

1981 mitsubishi sigma won't turn off


It was a very common problem on carbureted cars, so common it was given a name: dieseling. You know, as how a diesel engine will run without spark plugs. You shut a hot engine off, there is still a little gas in the intake, and maybe the carburetor still drips a few drops down the throat. The crankshaft is still turning, so gas still gets into the hot combustion chambers, so hot it can still ignite the remaining gas, and you have "dieseling".
To rectify it, manufacturers years ago began putting an electrical solenoid in the carb's main fuel passage to stop fuel flow as soon as engine is shut off. They called this a fuel cut solenoid, fuel shut off solenoid, idle stop solenoid, or an anti-dieseling solenoid. I know datsuns had this solenoid at least as far back as the early '70's. Works very simply: turn the key on and solenoid was energized, retracting a plunger pin in the fuel passage. Turn key off and solenoid gets no power, so a spring inside the solenoid pushed the plunger back into the fuel passage. It almost entirely eliminated the problem, as long as the carburetor was adjusted correctly.
Actually, I think your '81 should or might have this fuel cut solenoid on the carburetor, and if so it may be inoperative and needs replacing. Not very expensive, and easy to replace- just screws out. Some had only a single wire connector, and some had two wires to them. It would probably be the only electrical to the carb, other than any electrical going to an electric choke, if so equipped.
Happy motoring with the old mits, Sarah. I still have an old Datsun pick-up, and now an '87 Sentra, carbureted unfortunately, lol.

Jul 27, 2013 | Cars & Trucks

1 Answer

My 96 mitsubishi montero LS is having a a couple problems


the first problem is your idle air control vavle it is located on the thottle body . the idle air control vavles job is to have the engine run a little high to warm the engine ,and then shut off once engine warm. . the other is a your blend door is stuck open or close. you may have something stuck in it. the bend door motor is located in the heater box in the dash

Oct 31, 2012 | Mitsubishi Cars & Trucks

1 Answer

MY 1998 FOR TARUS HEATER WILL NOT WORK.WAS DRIVING


It is most probably the problem with blend door or blend door actuator. But just in case I would suggest to follow the entire procedure:

First you have to identify what causes the problem.
To do this you have to:
1) When engine is cold check the level of coolant. If it is low fill it up.
2) Start engine and check if engine reaches regular temperature. If your engine is not heated enough it means your thermostat does not work properly and should be replaced
3) If engine temperature is normal, then check the temperature of pipes that go to/from heater core. These pipes are located up the fire wall (easier access is from the passenger side). If pipe/pipes are cold (even engine is warm) it means you heater core is plugged and should be flushed. Keep in mind, flushing the whole cooling system is different from flushing heater core.
4) If pipe/pipes are hot/warm, turn off the fan, switch controller to the hot position, wait for 3-4 minutes and turn on the fan. Note if the cold air blows first or warm air blows first but it cools down in 5-10 seconds. If the air blows cold than it is most probably the problem with blend door or blend door actuator.
5) If air blows warm first and then cools down, then while running engine and remaining the transmission in PARKING position, press on the gas pedal until your engine reaches 3,000 RPM. Check if your heater blows warm/hot air. If it does, then your water pump does not work properly and should be replaced. If the air still cold, I would suggest flushing the heater core.

Oct 17, 2009 | 1998 Ford Taurus

2 Answers

98 saturn it won't start when the engine is cold i have to put the gas peddle to the floor while I turn the key till it starts. when it does start I get large cloud of blue smoke. once the engine is warm...


Replace The Throttle Positioning Sensor...When you put Accelerator to the floor ... It rolls the Position Sensor Cam to tell computer etc to put Injectors Etc..into cold start mode...as soon as the motor fires..injectors take over and do their job..The Black smoke is the Extra Gas Put it cylinders to Purge it in a cold Start Mode...Throttle Positioning Sensor..and Yes You Can do It.!!! AutoZone-O'Reillys Etc..Easy Fix !! And Remember Castrol GTX-5-30/ 10-30 !!!
For God Sakes DO NOT Run 5-20 Or 20-50 Tooo Thin- Tooo Thick !! -Thanks-Matthew

Mar 19, 2009 | 1998 Saturn SL

2 Answers

Fuel pump not running only in cold weather


Pumping the pedal on an injected engine does nothing, except varying the air intake amount. I would change the fuel filter (if badly plugged, it may be causing the pump to shut off early) and clean the idle air control valve.(which should regulate idle air flow, eliminating the need for playing with the pedal) The valve itself is not difficult to service, but is a bit delicate. It can be cleaned with carb cleaner. just make sure you do not turn the valve end around while cleaning, and re-install it perfectly straight. You may have a bad drain back valve in the pump, but this is less common than what I outlined above.(there are tests for this)

Jan 12, 2009 | 1995 Jeep Grand Cherokee

3 Answers

6.6 liter deisel engine will not fire after it is warmed up


heat related issues usually
fuel blockage or electrical resistance to ignitors...run on indicates fuel issues at pressure head not shuttign off fuel.. so check there first...also many related engine management sensors are related to fuel dilvery so get code checked and computer tested/.... good luck

Dec 16, 2008 | 2003 GMC Sierra 2500HD

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