Ford Galaxy Ghia 2007 Parking Sensors

[bobbyrabs]

when i engage reverse gear i sometimes get a constant tone from the sensors even though there is nothing about any body any ideas what could be wrong ,faulty sensor perhaps ,how do you find out which one it is if thats the problem. thankyou.

[galaxymonster]

I had the same problem, was still under warranty so the garage sorted it - it was a total of 3 dodgy sensors, which they replaced. Had the warranty not been still in I'd have bought one new sensor and substituted it until I found the problem, ok if only one duff.

[bobbyrabs]

I had the same problem, was still under warranty so the garage sorted it - it was a total of 3 dodgy sensors, which they replaced. Had the warranty not been still in I'd have bought one new sensor and substituted it until I found the problem, ok if only one duff.

yes i thought of that buying one and trying them all but could be more than one as happened to you looks like i will have to buy four and just change them all ,or just change the outer 2 as they are prone to dirt and wet and see what happens , the centre ones on mine are dirt free and damp free the thing is where to buy instead of ford ,cant see any online to buy

[chromedome]

You may not want to replace all four when you find out the price. :)

[bobbyrabs]

You may not want to replace all four when you find out the price. :)

yes i know its a rip off let me guess

[Sher]

When my new to me, Galaxy III rear sensors started sounding constantly, even the fronts would not butt in as my II used to. I thought it was just dirt as previous.

It was raining, we've had a lot of rain. Cleaning them i.e. wiping them with a paper towel didn't work.

Some time later after drying out they worked again. Rain later, problem back.

Using just my thumbs I was able to cover both central sensors which stopped them sounding but sides would operate normally, when I moved my leg in front of them.

Masking tape didn't work but a couple of sticky felt pads (floor/table protectors available in packs from Aldi/Lidl) over the central two sensors allowed the rest of the system to operate as normal.

 

I suspect that water is getting behind, through what look like weep holes, just below screws, in the rear bumper may not be helping. I used small square of Al sticky foil to close them for the moment.

 

Tomorrow I will be able to investigate further, if it is not raining!

 

I may be able to use this feature when I fit my towing bracket plus extras..

 

So to isolate a sensor use a small felt pad.

 

Can anyone confirm that these devices are Ultrasonic?

[bobbyrabs]

this could help thankyou

[Sher]

Further investigation today , prior to fitting my towbar, showed an incompletely wrapped against the elements multiblock connector which is almost certainly collecting water as the open end faced upwards towards the weep holes.

Sprayed with WD 40 and left to dry.

Will then wrap in plastic tape followed by Aluminium Tape ( two layers at least ) to protect against water ingress.

[gregers]

might be better to wrap with self amalgamating tape.its the stuff the sky installers use.

[bobbyrabs]

i will try the same thankyou

[Sher]

@Gregers

 

I would have but I didn't have any to hand.

It's in my Caravan in Spain. The Al tape is brill as it even seals leaking water pipes if the pressure is not too high and also protects against UV damage. Not likely underneath in this case.

 

Since Spraying and sealing the Parking Sensors have mended there ways, behaving as they are supposed to.

 

Now to upset them again with a fixed towbar, stainless steel backplate/bumper protector and twin electrics from Towsure.

 

Well it worked on my Galaxy II and I have already discovered how to reduce the sensitivity of the two inner sensors to zero, whilst leaving the outer 2 functioning. I'm sure I can reduce the reflectivity of the towing fitments or sensor sensitivity enough, even if it does not function right away.

[Sher]

Full external Towing ball, with Stainless steel Bumper protector plate and full electrics. All from Towsure. About £160 for parts.

Car came with a reversing camera fitted in the Bumper. now attached to the Stainless plate. Unfortunately didn' make a neat job of cutting the hole. Hence the aluminium tape to cover the discolouration as I ground the hole out. Protector plate needed bending inwards slightly.

Anyway it all works.

Two felt pads on the centre two sensors , treated with Silicone waterproofing spray.

[Sher]

@gregers

 

It's me that's cackhanded in cutting the hole in the bumper protection plate using hand held rotary grinder.

 

Anyway I have a good excuse!

[plumbman]

I have noticed that the paint starts to come unstuck from the surface of the sensor.  I have scraped all mine off and the long sounding tone disappeared and they work fine now.

[g33za]

Thanks for this, i'm beginning to have almost the same problem with my 56 Gal, is the multi block accessible easily and is it on the left or right hand side of the car?

[joenacey]

My sensors have stopped working i have replaced them all 1 by 1 but still not working any1 got any help...