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Topic: Pfft sound when revving. (Read 402 times) |
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Chaoslord
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I'm a YaBB newbie!
Posts: 24
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Pfft sound when revving.
« on: Jun 7th, 2006, 6:41pm » |
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I've been experiencing some lack of power on my 2.3 16v when i depress the throttle too fast, and when i tried to investigate this, I noticed that when i rev the engine quickly, there is a pfft sound coming from the back left of the engine (when standing in front of the engine  ), and then it revs. If i pull the throttle wire slowly, there is no such sound, and the engine revs normally.
There is perhaps a 1 sec delay from when i pull the wire, until the engine revs.
Can anyone shed some light on this?
Andy
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Matt
Senior Member
Manual'd and a 4.0 in the making
Posts: 2816
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Re: Pfft sound when revving.
« Reply #1 on: Jun 7th, 2006, 7:40pm » |
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you may have a split pipe or one thats dropped off the vacuume chambers at the back of the inlet manifold
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FDS2000 Scans - Birmingham
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philgood
Full Member
2.9l 12v Auto (95 M) Ultima Saloon (Aubergine)
Posts: 122
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Re: Pfft sound when revving.
« Reply #3 on: Jun 7th, 2006, 8:22pm » |
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I had a similar problem with my wife’s Escort. Lack of power and strange noise from engine compartment. Originally I thought it was the catalytic converter blocked but eventually traced it to the back box had failed and blocked up. Simply had it diagnosed then replaced at the local exhaust centre. Hope this helps?
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Regards
Phil.
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scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
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Re: Pfft sound when revving.
« Reply #4 on: Jun 7th, 2006, 10:04pm » |
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hi there
give the sparkplugs the once over. they can work lose on the 16valver. also check the gap as it doesn't like it too big!
hth
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Octavian_P
Senior Member
 
Posts: 1126
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Re: Pfft sound when revving.
« Reply #5 on: Jun 8th, 2006, 9:25am » |
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A firend of mine had the same problem on a mondeo, when the accelerator was suddenly pushed the engine was starting to stall. The problem was the spark plugs, one of them was letting a spark to jump from under it right to the engine block. Then engine was a 2.0 litre one and has long spark plugs just as the 2.3 has.
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2.0 16V Ultima|2.3 16V Ghia|2.9 24V Cosworth Ghia
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Chaoslord
Newbie
I'm a YaBB newbie!
Posts: 24
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Re: Pfft sound when revving.
« Reply #6 on: Jun 8th, 2006, 11:27am » |
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Thx alot guys.
I'll change the plugs, and go over the hoses and such.
Andy
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bootiful-scorpios
Full Member
ex 2.9 24v
Posts: 560
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Re: Pfft sound when revving.
« Reply #7 on: Jun 8th, 2006, 12:29pm » |
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do your pfft sound similar to a exhaust blow ?
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