Question about 1995 Audi A6

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Car battle's to start when hot

The car starts as normal when the car is cold but once it is hot if you try starting it, it will not start. But if you continue trying for about 5 to 10 minutes it will eventually start or if it has cooled down enough.

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Check the engine coolant temp unit,suggest a code read first that will give you a good idea where the fault is

Posted on Oct 19, 2008

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Car start up when cold. Wont start when warm over 85c


After starting cold does it continue to run properly as long as you want? Is fuel mileage normal? If not, could be bad coolant temp sensor failing to tell ECU engine is warm, such that it is flooding when trying to start hot.

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If it cranks normally when hot, could be that an injector is leaking enough to slightly flood engine and this is okay when cold. Could also be cold start injector is not completely shutting off when hot.

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98 silverado 5.7 hard starting when warmed up starts fine cold what could cause this?


check for a bad fuel pump relay. One of the first signs of a failing DME/Fuel Pump is difficult hot starting. Quite often when the DME/Fuel Pump relay starts failing the car will start without problems when it is cold. However, when the car has been operated at normal operating temperature for a while, it will refuse to start. Its worth a try! (usually 30 minutes to 1 hour), the car will again start without problem. Is this the case! Good-Day!

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Cold engine cranks when bumpping the starter once. After engine is wram you have to bump starter three time to crank. 1997 jeep wrangler 4.0 engine. What is the problem. Thanks


Its a hot start issue.

Can be related to low fuel pressure or problem with crank sensor.


Also it can be weak battery or starter.


But possibilities are to be inspected to confirm what exactly it is.------


To troubleshoot and confirm the issue,i suggest you refer few solved help links with similar types of problem like yours:------


Click the link below:------


1991 Toyota Trecel: Engine Starts fine but dies when gets Warm?

http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

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1994 Toyota Pickup: Starts fine but dies in few seconds?


http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

------------

1995 Lexus LS400: Running Hot?

http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html

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2002 Toyota Camry: Puff of Blue or White Smoke while Starting?

http://whatisbyme.blogspot.in/2012/05/2002-toyota-camry-puff-of-blue-or-white.html

------------

Multiple problems on car: Car runs hot, A/C blows hot and car starts surging?

http://schematicsdiagram.blogspot.in/2012/04/multiple-problems-on-car-car-runs-hotac.html

--------------

Delay starting on Toyota Prius?


http://schematicsdiagram.blogspot.in/2012/02/delay-starting-on-toyota-prius.html

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Honda car will not start intermittently?

http://technoanswers.blogspot.in/2012/02/honda-car-will-not-start-intermittently.html

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Vehicle Starts, Runs and Loses Power

http://whoisbyme.blogspot.in/2012/07/vehicle-startsruns-and-loses-power.html

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Intermittent starting issues on Volvo 760?

http://schematicsdiagram.blogspot.in/2012/02/intermittent-starting-issues-on-volvo.html

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Car starts and cuts off immediately?

http://repairhelpcenter.blogspot.com/2012/01/car-starts-and-cuts-off-immediately.html

-----------

Car won't start when cold?

http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-when-cold.html

===========

These details will help.

Thanks.

Dec 17, 2012 | Jeep Cherokee Cars & Trucks

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Volkswagen Polo hot start problem


1) see the diagram
2) use the scanner and computer test, this will guide a exactly problem
3) reset the igntion timing, it doesnot matter if your system ha BCM, adjust to accoridng the specification manaufacturer, because the BCM runt according to the information recorderd. remember the BCM =CPU.
4) test the sensor cam/crank with VOM see the diagram.
5) the head gasket i blown, valve timing is incorrectly set. the exhaust system is blocked.
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Jul 18, 2012 | Cars & Trucks

1 Answer

Car not starting when hot


Has the battery been tested? That would be the most common cause

Mar 08, 2012 | Toyota Tazz Cars & Trucks

1 Answer

2000 maxima has erratic idle on cold days and will stall out on extremely cold days. Also, have noted antifreeze leak (on ground) on those really cold days. Car runs fine once it reaches normal operating...


It sounds like an engine temp sensor is open.. When your engine is cold or anti-freeze is cold your ECU or ECM gets a signal from the temp sensor for cold engine start. It would make sense that it works fine when hot because the resistance on the sensor is a lot lower. Take an ohm meter if you have one and check the resistance across the temp sensor pins. When the engine is cold the resisitance should be really high. Start and warm up your car to normal temp and check it again. It should be a lot lower now. If not replace it. Hope this helps.

Sep 24, 2009 | 2000 Nissan Maxima

1 Answer

Car cranks just fine but will not start, tried cold start fuel, but didn't help. it actually starts once a day usually in the morning but that's it.


These cars have a problem with the main relay. They quit working when they get hot. This explains why your car will start when it is cold. Check out some of the other posts about this problem, also the Honda Civic.

Jul 27, 2008 | 1997 Honda Accord

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