What do I do when I have a hotstart?
What do I do when I have a hotstart?
Author
Discussion

cinderella_uk

Original Poster:

8 posts

208 months

Saturday 31st May 2008
quotequote all
Exactly as the question is... my car has been suffering from hotstarts lately... I don't know what to do, tried reading stuff and all they did was just explain why hotstarts occur.

So just wondering is there anything I can do?

Is this a major problem?

Bear in mind that I don't know much about cars and I'm the type that would have to get Halford's staff to change a light bulb.

Lots of love,

Miss Chan.

Edited by cinderella_uk on Saturday 31st May 19:44

Chassis 33

6,194 posts

299 months

Saturday 31st May 2008
quotequote all
What's the car we're talking about? The symptoms could be caused by a number of things....and when you say hot start does the engine turn and not fire or does the starter motor fail to work?

Regards
Iain

cinderella_uk

Original Poster:

8 posts

208 months

Saturday 31st May 2008
quotequote all
Can't remember what you wrote... but from what I remember, it doesn't switch on... if that makes sense, just the eeeeee eeeeeee sound... doesn't fully ignite. frown

shouldbworking

4,787 posts

229 months

Saturday 31st May 2008
quotequote all
Without knowing what car you are talking about its difficult to say, but as a broad guide, anything 1995 onwards (ie car has fuel injection) it should just be turn the key and it starts - no special control required.

Earlier cars (carburetted) may require you to hold down the throttle pedal if they are being stubborn - typically when starting from hot the difficulty is hot fuel vapor being too rich to ignite, by holding the throttle open you admit more air thereby leaning out that mixture so it ignites correctly.

Typical reasons for a car not starting well when hot would be

fuel vaporisation (check the fuel lines under the bonnet arent running close to anything that gets hot)

On fuel injection cars - a failed engine temperature sensor (this would be different from the one that supplies the temperature on the dashboard so this may still work), this would mean that the car doesnt know how hot the engine is and therefore whether its starting from hot or cold. It will then default to a setting between the 2 so that it can get running, but it will mean that it may not start perfectly as it doesnt have the ideal mixture. This one seems most likely given what you say.

cinderella_uk

Original Poster:

8 posts

208 months

Sunday 1st June 2008
quotequote all
now its even more annoying... in any weather it takes 3 times before it ignites....

would places like national tyres be able to check on it?

buggalugs

9,259 posts

254 months

Monday 2nd June 2008
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No not really. Best bet is to get a reccomendation from a friend or colleague of a garage to take it to. If it's due for a service then book it in for one and ask them to look at this problem as well.

The good news is, the worse the problem gets the easier it should be to pin down.

andyquantum

13,204 posts

221 months

Monday 2nd June 2008
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Heat soak sounds likely - cover the starter motor or exhaust in heatwrap and see if that sorts it

Timmolad

3,676 posts

220 months

Tuesday 3rd June 2008
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What car do you have? Is it petrol or diesel?

Silent1

19,761 posts

252 months

Tuesday 3rd June 2008
quotequote all
Put the key in the ignition, turn it until all the lights come on, wait 5 seconds and then try and start the car, it should start better. thumbup

Timmolad

3,676 posts

220 months

Tuesday 3rd June 2008
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weeping