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Hot Starting Problem - Peugeot Cars & Trucks

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Hard starting problems when engine hot could be restricted air filter.restricted clogged fuel injectors.engine could either be diesel or gasoline.if engine dont start and starter wont turn over engine. could have bad battery ground cable or battery positive cable could have broken place when cable get hot crack increases cause less current engine wont have enough power to turn over.

Posted on May 01, 2013

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Kia carens 2008 crdi not starting when hot, turning over easy, new battery fitted, any ideas greatly appreciated, starts fine when cold.


run the fault codes
not starting hot indicates an electronic component problem when hot
could be faulty cam/ crank position sensors, immobilizer or ECM

Jun 16, 2016 | Kia Cars & Trucks

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Crank sensor


Hot starting problems are usually fuel related. When a hot engine is shut off, the temperature of the engine and everything on it continues to rise for awhile as the engine undergoes a period of "heat soak." This can cause fuel to boil inside the carburetor bowl, fuel lines and fuel filter. When you attempt to restart the engine, "vapor lock" obstructs the flow of fuel and the engine doesn't want to start.
This is much less of a problem on fuel injected engines because the fuel is usually under much higher pressure inside the injectors and fuel line. Even so, a fuel line routed near an exhaust manifold or a fuel rail that's exposed to a lot of heat may still suffer the same kind of problems.
Heat soak problems such as these can sometimes be cured by wrapping insulation around affected fuel lines, and/or installing an insulating spacer or heat shield under the carburetor.
A Seasonal Problem Hard hard starting tends to be a seasonal problem, but may be worse in the early months of spring when refiners are switching fuel blends. Gasoline refiners produce fuel with a slightly lower volatility rating (called "Reed vapor pressure") during hot summer months because lower volatility fuel is less likely to boil and cause hot starting problems. During the winter, they switch to a higher volatility fuel because it makes cold starting easier. But if you still have "winter" grade fuel in your tank when warm spring weather arrives, you may experience some hot starting problems. The problem will go away, however, as soon as the refiners in your area switch to their summer grade fuel.
Other Causes Hot starting problems can also be caused by cooling problems that allow your engine to run too hot (the pistons swell up and may scuff the cylinder walls), or excessive resistance in the starter motor that causes the engine to crank slowly. A starter "amp draw" test can be used to check the condition of your starter. Also, many starters have small "heat shields" to protect them from heat radiating from nearby exhaust pipes or manifolds. If the shield is missing, the starter may get too hot and bind up.

Oct 20, 2013 | 1995 Mercury Cougar

2 Answers

2000 saturn is starting to run hot


The 2000 Saturn models LS and LW are Saturn's first midsize cars, In 2000, there was also a Saturn coupe, a subcompact sedan and a subcompact station wagon.Your car starting to run hot or can't starting ,maybe some wrong of the engine the battery or with something else. You can use a diagnostic check it at frist ,to find the tool ,on the obd2tool website.you will save some money and hassle.

Aug 21, 2012 | 2000 Saturn L-Series

1 Answer

Problems starting in hot weather


remove gas cap in hot weather and see if it starts better. if it does its an emissions/purge issue

Mar 15, 2012 | 1989 Buick LeSabre

1 Answer

Says low coolant,but its full,car starts sumtimes,not when hot,would themastat keep it from starting ?


nope. A thermostat just sits inside the water system opening and closing according to the ambient tempature around it. It has nothing to do with starting (on any vehicle that I can think of...). It if is 'overly hot', that may prevent it from starting ...but that leads you to "why is it hot"? (Is the electric fan coming on or if it has a 2nd fan is IT coming on)? Some engines will vaporlock really fast when hot ...more so if it has a carb and all the good ole stuff.

Aug 01, 2011 | Oldsmobile Cutlass Supreme Cars & Trucks

1 Answer

2005 seat altea with 1.9 VW.TDi engine Problem starting : when the engine is HOT. it grinds over for some time before reluctantly starting..then runs perfectly. Starting cold or semi warm is not a problem.


It seems to be usual for this engine to turn over for about 2 -3 seconds when hot but any longer than that you should have it looked at by a technician.

Aug 25, 2009 | Volkswagen Scirocco Cars & Trucks

1 Answer

VW LT35 / hard starting when hot


have you check your fuel filter. and how hot dose the motor get when it start hard.no motor like to start when they are hot. check your fan relay. and check your coolnt ok. good luck have a nice day

Apr 18, 2009 | 2004 Volkswagen Eurovan

1 Answer

1994 Honda Civic has a difficult time starting during hot weather


the main relay may need to be replace. is the car hot inside on a hot day , and when you air out the car to cool inside temperture, it starts.

Dec 14, 2008 | 1994 Honda Civic

1 Answer

Lumina APV Starting Problem


coil may have short that gets worse when hot

Jul 23, 2008 | 1990 Chevrolet Lumina APV

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