Question about 1999 Buick Century

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The car starts fine when cold but hot i have some problems. Changed fuel filter and it helped some.

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PLEASE HAVE A LOOK AT YOUR FUEL PRESSURE AS THE FUEL FILTER DID HELP SOME WILL INDICATE THAT THIS IS FUEL RELATED.FUEL PRESSURE AND DELIVERY IS A MUST 1.5 LITRES TO 20 SECOND IS GOOD

Posted on Jul 21, 2009

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Volvo v40gdi sometimes won't start but starts fine from cold when trying to start it chokes and struggles if I remove air filter assembly it starts fine,


To troubleshoot the issue, click the link below:

Car Repair Diagram

http://technoanswers.blogspot.com/2013/03/car-repair-diagram.html

-------


HOT/WARM START ISSUE


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

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

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


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

1995 Lexus LS400: Running Hot?

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

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Car won't start when cold?

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===========

These details will help.

Thanks.

Mar 14, 2013 | Cars & Trucks

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1997 grand marquis wont restart when cold


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My vauxhall zafira 2.0 tdi will not start when cold,have changed battery and glow plugs but still same problem. have been told to disconnect coolant temperature sensor but do not know where to locate?


My Vauxhall (Opel) Zafira 2004 1.8 liter 16V Petrol Auto
had COLD START problem; cold engine does not start no
matter what! I have changed the following parts, one after
another:
1. New Coil pack
2. New Spark plugs
3. New Battery
4. New Mass Air flow oxygen meter
5. Air filter
6. Oil filter
7. Engine oil
8. Fuel filter
9. Premium Petrol
10. Engine coolent water sensor
Still the same problem. Then changed 'Crank sensor'. And
now the car starts fine without any issue!!
Faizur Rahman <captfaiz@yahoo.com>

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I have mercedes sprinter 313 cdi 2002 recently noticed taking longer to start hot and cold 4 weeks ago changed fuel filter Thought this must have something to do with problem So changed o rings on top of...


Normally problems starting could be the glow plugs these warm the diesel up making ignition easier also check the wires going to glow plugs if only 1 of these are off it makes starting harder

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My jaguar s type has had a new fuel filter fitted. but this has not fixed problem.It loses power especially going up hill. we pull over turn off engine for a minute or two, the starts ok for a while....


Had this problem on a v6 3l petrol. No codes present.Connected laptop to diagnostics and drove jag for a few miles.Found fuel pressure to start off at over 55 psi but slowly drop to 20 psi and less until car came to a halt.
Waited a couple of minutes hey presto car starts,pressure back to over 55psi running fine for a while.tested power supply to fuel pump,ok at constant 12 volt. Changed inline fuel regulator and fuel filter,still the same.Checked fuel tank for any possibility of a vacuum occurring,no not that either.Had to bite the bullet and change the in tank fuel pump,problem solved runs fine.This car had also been to jags and because no fault code appeared it must be alright! I have learnt that over my forty year mechanical experience that common sense basics must also be checked out and not totally depend on computer fault codes.Hope this helps.bw Johnnyman.

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1 Answer

Won't start when hot


yes, one word ignition control module, located inside the distributor cap under rotor button, it will be the best 20-40.00 part you'll ever buy. hope this helps ya

Nov 05, 2008 | 1988 Chevrolet Cavalier Z24

1 Answer

Starting


Morning, I found your problem...its going to be your fuel pump. Allow me to explain. When you start your car in the morning the car starts just fine. As your driving the fuel pump will eventually get hot. Therefore the circuit cuts off when you turn off for a while then you jump back in to restart the vehicle and it doesn't. The reason is when the fuel pump gets hot it shuts off due to circuit wire inside the pump.
You can almost say like overheating. Therefore your pump is going out. Replaced 7-10 of them in my time as a mechanic. Do yourself a big favor. Don't get a used on or Autozone. Pep boys or Napa will do just fine. Goodluck.

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