Omega Owners Forum
Chat Area => General Car Chat => Topic started by: 05omegav6 on 06 December 2011, 12:47:56
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A chap at work has been told his 1.9 CDTi 16v Vectra needs: new inlet manifold, new throttle body and new swirl flaps.
Question is does the high pressure fuel pump really have to be removed to change the manifold?
TIA, Al :y
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have a read of this al :y
http://www.vectra-c.com/forum/archive/index.php/t-43938.html
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relevant bit to save you reading al :P
You have to remove the High Pressure fuel pump to get at certain bolts & that is driven by the Cambelt, I was under the impression that you did not have to remove the belt, But alas it is not the case ..
Dean
oh ok....... just that ive done a few hundred of these and ive never removed the timing belt ...you can if needed not remove the high presure pump ..but alas you would need a small hands for that ......in the front of the pully for the high preshure pump there are two holes that line up with two threads in the pump braket use two bolts from the egr valve to bolt the pully to the braket and you wont have to remove the cam belt
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You can bolt the high pressure pump pulley to the backing plate which allows removal of the pump without distrubing the cambelt.
Cant see the need to replace the throttle body though.
Its usualy a case of replacing the manifold (which inlcudes the swirl flaps) and valve actuator motor.
Guessing its an early model circa 2005/6 as the later manifold was heavily modified to minimise such issues.
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Thanks for the swift response :y
relevant bit to save you reading al :P
You have to remove the High Pressure fuel pump to get at certain bolts & that is driven by the Cambelt, I was under the impression that you did not have to remove the belt, But alas it is not the case ..
Dean
oh ok....... just that ive done a few hundred of these and ive never removed the timing belt ...you can if needed not remove the high presure pump ..but alas you would need a small hands for that ......in the front of the pully for the high preshure pump there are two holes that line up with two threads in the pump braket use two bolts from the egr valve to bolt the pully to the braket and you wont have to remove the cam belt
That makes sense.You can bolt the high pressure pump pulley to the backing plate which allows removal of the pump without distrubing the cambelt.
Cant see the need to replace the throttle body though.
Its usualy a case of replacing the manifold (which inlcudes the swirl flaps) and valve actuator motor.
Guessing its an early model circa 2005/6 as the later manifold was heavily modified to minimise such issues.
Apparantly it's not that succesfully modified, local stealers keep a stock of inlet manifolds and swirl flaps, but not throttle bodies. I find that quite telling. :-\ Tech 2 diagnosis was to change the list above ::) On that basis, I'm suprised they didn't add the EGR valve for good measure... Car has done 108k in occassionally goes into limp mode, EML goes out after restart and all is ok for a while. Last time was on M25 :o so he's thinking of getting rid.
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Whats the fault code.....swirl flap actuator or intake air leak?
EGR is no sweat, easy to remove and clean certainly no need to replace..
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Whats the fault code.....swirl flap actuator or intake air leak?
EGR is no sweat, easy to remove and clean certainly no need to replace..
Not sure of the codes, only seen the print out for the investigation work :-\ Fault is very intermittent, doesn't happen all that often, 3/4 times in 20k.
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Its probably not the swirl valves then as when they go.....they go!
Could be occasional sticking EGR which is easy and cheap to sort.
Fault codes would reveal all and the pedal trick works on these.
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Its probably not the swirl valves then as when they go.....they go!
Could be occasional sticking EGR which is easy and cheap to sort.
Fault codes would reveal all and the pedal trick works on these.
Tried the pedal trick unsuccessfully :-\ reg is du55uxw btw :y