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Author Topic: Warm Start  (Read 7048 times)

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omega3000

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Warm Start
« on: 16 February 2013, 17:58:34 »

Would faulty HT leads or diss/pack cause a car to struggle to start once warm ( 106 pug ) Its intermittent but always does it when warm ... cold starts no problem at all  :-\
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tidla

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Re: Warm Start
« Reply #1 on: 16 February 2013, 19:46:43 »

Idle valve sticks /goes faulty. Some stick hot/closed and wont start from cold, others don't close and allow too much air when warm.
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Webby the Bear

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Re: Warm Start
« Reply #2 on: 16 February 2013, 19:48:40 »

when you say struggling to start steve.... are you experiencing no crank/no start.... or crank/no start?
 :y
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omega3000

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Re: Warm Start
« Reply #3 on: 16 February 2013, 20:17:40 »

Idle valve sticks /goes faulty. Some stick hot/closed and wont start from cold, others don't close and allow too much air when warm.

ICV



Could be a possibility  ;)

when you say struggling to start steve.... are you experiencing no crank/no start.... or crank/no start?
 :y

Half crank / no start only when the car is warm from a run , refuses to start till cooled down . Starter motor needs looking at tomorrow to eliminate  ;)
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Webby the Bear

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Re: Warm Start
« Reply #4 on: 16 February 2013, 20:22:38 »

worth checking battery voltage, batt connections, fuel and spark in your diagnosis to rule them out as problems imo  :y
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omega3000

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Re: Warm Start
« Reply #5 on: 16 February 2013, 20:28:18 »

I was thinking maybe duff HT leads as when the engine is cold it starts perfect , after a run when its all hot under the bonnet and heat transfer to HT leads maybe leading to break up  :-\ Will take the ICV out and clean first to see if that makes any difference .
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omega3000

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Re: Warm Start
« Reply #6 on: 16 February 2013, 21:40:18 »

worth checking battery voltage, batt connections, fuel and spark in your diagnosis to rule them out as problems imo  :y

Its had new plugs , air filter , oil filter an oil . Never checked the ICV and presuming it will be crudded up  ::) Fuel filter could be blocked but i have a new one to put on . Battery terminals need a clean and check , Mite be worth chucking some redex in tank as well and give it a blow out afterwood  :y
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Webby the Bear

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Re: Warm Start
« Reply #7 on: 16 February 2013, 21:44:37 »

worth checking battery voltage, batt connections, fuel and spark in your diagnosis to rule them out as problems imo  :y

Its had new plugs , air filter , oil filter an oil . Never checked the ICV and presuming it will be crudded up  ::) Fuel filter could be blocked but i have a new one to put on . Battery terminals need a clean and check , Mite be worth chucking some redex in tank as well and give it a blow out afterwood  :y

i'd personally start by getting a meter on the battery.

then whip the 4 ht leads out, connecting them to their spark plugs and earthing them (metal valve cover perhaps?) and crank over... make sure all 4 are giving spark.

then check fuel pump buzzing and relay/fuse good.
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omega3000

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Re: Warm Start
« Reply #8 on: 16 February 2013, 21:47:26 »

Aye you can hear the fuel pump when you turn the ignition , when the car is hot and try the throttle to the floor it still wont start  >:( smell petrol though ... had to wait ten minutes before it would kick into life again  >:(
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Webby the Bear

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Re: Warm Start
« Reply #9 on: 16 February 2013, 21:49:27 »

Aye you can hear the fuel pump when you turn the ignition , when the car is hot and try the throttle to the floor it still wont start  >:( smell petrol though ... had to wait ten minutes before it would kick into life again  >:(

that would be what i'd focus my attention on mate first :y

is it coming from the engine bay? wheres the fuel filter in the pug?
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omega3000

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Re: Warm Start
« Reply #10 on: 16 February 2013, 21:52:17 »

Aye you can hear the fuel pump when you turn the ignition , when the car is hot and try the throttle to the floor it still wont start  >:( smell petrol though ... had to wait ten minutes before it would kick into life again  >:(

that would be what i'd focus my attention on mate first :y

is it coming from the engine bay? wheres the fuel filter in the pug?

Its atatched to the chassis near the tank , car has become a bit hesitant at times on the run so replacing the fuel filter would be a good place to start  ;)
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Webby the Bear

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Re: Warm Start
« Reply #11 on: 16 February 2013, 21:53:00 »

Aye you can hear the fuel pump when you turn the ignition , when the car is hot and try the throttle to the floor it still wont start  >:( smell petrol though ... had to wait ten minutes before it would kick into life again  >:(

that would be what i'd focus my attention on mate first :y

is it coming from the engine bay? wheres the fuel filter in the pug?

Its atatched to the chassis near the tank , car has become a bit hesitant at times on the run so replacing the fuel filter would be a good place to start  ;)

defo. but i would hunt down that smell first  :y
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omega3000

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Re: Warm Start
« Reply #12 on: 16 February 2013, 21:59:00 »

Petrol smell is normal when foot to the floor mate  ;)

As well as the other bits im sure the vac pipes could all do with de-gunking , taking off and blowing out just to make sure of no blockages  :)
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symes

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Re: Warm Start
« Reply #13 on: 16 February 2013, 22:00:33 »

Petrol smell is normal when foot to the floor mate  ;)

As well as the other bits im sure the vac pipes could all do with de-gunking , taking off and blowing out just to make sure of no blockages  :)
+1  :y
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martin42

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Re: Warm Start
« Reply #14 on: 16 February 2013, 22:02:10 »

hmmm going to be a long day 2moro then  ;D ;D
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