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Author Topic: Secondary air injection pump  (Read 9501 times)

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BigCat

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Re: Secondary air injection pump
« Reply #15 on: 14 January 2007, 15:52:33 »
I get a similar sound from mine about ten seconds after I start it up, sounds like a pump or compressor, and runs for about five seconds - is that what you get? I seem to remember reading somewhere on this forum (or the other one) that it's the coolant pump running to prime the heater system.

Dominic
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Paul M

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Re: Secondary air injection pump
« Reply #16 on: 14 January 2007, 16:03:45 »
No, it lasts a bit longer on mine and also it starts as soon as the engine is started from cold.
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TheBoy

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Re: Secondary air injection pump
« Reply #17 on: 14 January 2007, 16:22:35 »
Paul M, unplug the pump to see if it is that making noise...
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JasonH

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Re: Secondary air injection pump
« Reply #18 on: 14 January 2007, 19:17:03 »
The secondary air pumps runs for a few seconds to a few minutes depending on how cold the engine is when it's started.
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Paul M

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Re: Secondary air injection pump
« Reply #19 on: 15 January 2007, 11:22:19 »
Will disconnect the plug when I get a chance, probably the weekend again.
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spiketheskinnydog

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Re: Secondary air injection pump
« Reply #20 on: 16 January 2007, 14:46:43 »
Mine makes that noise too - just ignore it and tell the neighbours its the supercharger  :y
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miked

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Re: Secondary air injection pump
« Reply #21 on: 16 January 2007, 16:18:20 »
Do they all have one of these?

I had a V6 Vectra which defiantly had one, very loud on start-up.

Can't say I’ve noticed one on mine, although its only a 4 pot
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bestseany

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Re: Secondary air injection pump
« Reply #22 on: 16 January 2007, 16:57:35 »
Isn't there a compressor for the self-levelling rear suspension under the wheel arches too? Maybe it's that.
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TheBoy

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Re: Secondary air injection pump
« Reply #23 on: 16 January 2007, 18:59:56 »
Quote
Isn't there a compressor for the self-levelling rear suspension under the wheel arches too? Maybe it's that.
Only on the posher models ;), and it will be drivers side...
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Paul M

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Re: Secondary air injection pump
« Reply #24 on: 16 January 2007, 20:50:45 »
Funnily enough mine has self levelling suspension ::)
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TheBoy

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Re: Secondary air injection pump
« Reply #25 on: 16 January 2007, 20:54:33 »
Quote
Funnily enough mine has self levelling suspension ::)
Rare on an MV6, but MV6 (prefacelift) would fit into my description of "posher model" ;D
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Paul M

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Re: Secondary air injection pump
« Reply #26 on: 16 January 2007, 23:52:31 »
 :D yeah I was rather surprised when it was in getting the tracking done, and the guy mentioned the self levelling suspension. I was a bit sceptical until he pointed out the vacuum pipes going into the dampers  ::)

Not that I'm ever likely to use it, never carry anything heavy. Although I guess maybe the dual-fuel tank may be considered heavy lol... wonder if it makes any difference there?
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Paul M

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Re: Secondary air injection pump
« Reply #27 on: 20 January 2007, 17:49:11 »
Disconnected the pump... no change :( So it's not that making the noise, I've reconnected it again.

TBH I was a little sceptical as this noise seems to rise and fall with the revs, although I'm at a loss as to what it can be seeing that it only happens at cold :-/ It's like a "brrrrrrr" kind of noise if that's any help  ;D
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wakeyomega

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Re: Secondary air injection pump
« Reply #28 on: 13 April 2007, 21:20:08 »
Sorry for raving this from the grave - but I also get this noise at start up - did you ever find out what it was? (there I was reading through this old thread thinking "any minute now I'll reach the answer", and the thread just stopped! I can't go to bed not knowing, its like reading a good book then finding out that the last page has been torn out and you can't find out who dunnit!  :)

Pat
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Marks DTM Calib

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Re: Secondary air injection pump
« Reply #29 on: 13 April 2007, 21:25:37 »
I suspect it wasn't the pump that got disconnected......probably one of the horns...its a common mistake (done it myself!).....it will be the airpump.....try it!
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