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Author Topic: Gasp for Air !!  (Read 820 times)

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amba

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Gasp for Air !!
« on: 25 March 2010, 21:09:13 »
Sitting in traffic tonight with engine on tickover in gear ,suddenly engine seemed to almost miss a heart beat and revs  gulped and then corrected its self and back to normal.
It did this several times but always correct its self and never stalled.
Is this pointing to a air leak ? but why just a sudden gasp,normal idle with climate on is 650 ish so that is normal.
Any pointers other than the usual culprits/ dispack new 4 months ago/plugs replaced 6k ago/leads less than 30k and are 8mm magnacor/fuel filter,air filter less than 3k.
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Andy H

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Re: Gasp for Air !!
« Reply #1 on: 25 March 2010, 21:12:24 »
Did your EML light up?

Have you done the paperclip test?
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cem_devecioglu

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Re: Gasp for Air !!
« Reply #2 on: 26 March 2010, 09:20:11 »
if EGR is blocked (I blocked mine) it can do that after engine warms..(mine does it)

tried without blocking EGR , problem goes..

in normal driving you cant feel as the throttle is open..

but when you are at the lights and engine is warm and EGR is activated it does that :-/
« Last Edit: 26 March 2010, 09:48:18 by cem_devecioglu »
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Kevin Wood

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Re: Gasp for Air !!
« Reply #3 on: 26 March 2010, 09:21:49 »
Could be crank sensor starting to fail?  :-/

Worth checking for a 19.

Kevin
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feeutfo

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Re: Gasp for Air !!
« Reply #4 on: 26 March 2010, 09:48:18 »
time for a paper clip test, see maintenance section.

Sounds more like its almost stalling, so not air leak although revs may well rise and settle as the engine management trys to prevent the stall.

If no 19 is present may be worth cleaning the idle controle valve.
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Kevin Wood

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Re: Gasp for Air !!
« Reply #5 on: 26 March 2010, 09:49:49 »
Oh, and somebody please remind me I've got to go to the post office in my lunch hour.   ;)

Kevin
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feeutfo

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Re: Gasp for Air !!
« Reply #6 on: 26 March 2010, 09:52:27 »
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Oh, and somebody please remind me I've got to go to the post office in my lunch hour.   ;)

Kevin

dont forget to go to the post office Kev ;)
« Last Edit: 26 March 2010, 09:53:19 by chrisgixer »
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Kevin Wood

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Re: Gasp for Air !!
« Reply #7 on: 26 March 2010, 09:57:44 »
Quote
Quote
Oh, and somebody please remind me I've got to go to the post office in my lunch hour.   ;)

Kevin

dont forget to go to the post office Kev ;)

amba06128 knows why. ;)

Kevin
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damage consultant

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Re: Gasp for Air !!
« Reply #8 on: 26 March 2010, 13:55:51 »
Quote
Quote
Quote
Oh, and somebody please remind me I've got to go to the post office in my lunch hour.   ;)

Kevin

dont forget to go to the post office Kev ;)

amba06128 knows why. ;)

Kevin
my local p.o has just had a new computer system fitted and guess what the server has gone down as has most off the other offices on this system >:(
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PhilRich

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Re: Gasp for Air !!
« Reply #9 on: 26 March 2010, 14:01:52 »
Did you remember the Post Office Kevin?  ::) ;D
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Kevin Wood

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Re: Gasp for Air !!
« Reply #10 on: 26 March 2010, 14:24:11 »
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Did you remember the Post Office Kevin?  ::) ;D

Yep. :y

Must have got there before their IT disappeared up its' own @rse too. ;D

Kevin
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