Vacuum solenoid good or fault?

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Slobo2712
Posts: 82
Joined: 21 Oct 2019, 07:08

Vacuum solenoid good or fault?

Post by Slobo2712 »

Hi,does anyone know is this vacuum solenoid good or fault from 307 1.6 hdi 80kw?Symptoms are sometimes actuator doesnt pull down when I start car..Tnx in advance
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wheeler
Posts: 4881
Joined: 21 Sep 2002, 19:07
x 245

Re: Vacuum solenoid good or fault?

Post by wheeler »

A resistance check is not a definitive test that the solenoid is good. The coil may be ok but that doesn’t mean theres not an internal blockage or if the fault is intermittent then the coil may show ok at time of testing.

Dormouse
Donor 2021
Posts: 404
Joined: 15 Apr 2021, 14:32
x 94

Re: Vacuum solenoid good or fault?

Post by Dormouse »

I agree. There might be something binding or blocking. It might be low vacuum. The fact it is intermittent means you are going to have to go through some basic checks to find if the fault is electrical, mechanical or vacuum related. Hopefully someone will pipe up if they had a similar problem.

Slobo2712
Posts: 82
Joined: 21 Oct 2019, 07:08

Re: Vacuum solenoid good or fault?

Post by Slobo2712 »

Ok tnx for answers.It is all normal untill I go to drive than actuator arm is suddenly isnt pulled down anynore and car goes like golf SDI..Than it needs some time couple of start engines untill arm is pulled down again..Chacked vacuum pipes and there is no leak..

alexvalcic
Posts: 6
Joined: 23 Apr 2021, 19:55
x 2

Re: Vacuum solenoid good or fault?

Post by alexvalcic »

There may be a fault in the valve itself. If you have tested the wiring, do the following. Cut the ring and open the valve. Clean the diaphragm and the ring filter inside. There is also a small hole in the place marked with an arrow, which serves to make it easier for the membrane to open the vacuum. You can do this with WD. When you have cleaned everything, pack it, return the ring and put a clamp around it to fix it. And that is that. Also change the sponge in the small filter located under the hood. It is located in a small cylindrical filter. It is a vacuum filter. You will notice that it is dirty, and maybe it has fallen apart.
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