Member Since: 16 Aug 2005
Location: Warwickshire
Posts: 4506
Weak windscreen washer jets
Haven't been able to find a thread on this particular problem...
My windscreen washer jets seem to be getting weaker. Each one seems to trickle out a very faint stream of water which barely reaches the top of the windscreen with any might. They also don't appear to be shooting out of both nozzles - just one on each jet. So in total I got two measly streaks of water.
The headlamp jets and rear window jets seem to be working as normal.
Is there a central pump or should buying a set of new LR049290 washer jets do the trick?
Member Since: 13 Jun 2014
Location: south wales
Posts: 3169
It may be the jet's need a clean with an airline or a pin as they may be blocked or the line may need cleaning Discovery 3 se gone
Range rover sport supercharged here:)
17th Dec 2018 8:14 am
Globetrotter448
Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1812
The windscreen washers have their own pump. Check that the nozzles are not blocked by inserting a needle or straightened paper clip, then check that you do not have a kink in the feed pipe.
17th Dec 2018 8:15 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10663
you can also remove the small pump from the tank.
Then remove the grommet from tank and clean the filter in the grommet.
17th Dec 2018 12:14 pm
Corris MacGray
Member Since: 23 Aug 2017
Location: OutofTown
Posts: 55
Doesn't it get like this when you're over 60?
17th Dec 2018 8:16 pm
gvmnt
Member Since: 06 May 2007
Location: Cambridge
Posts: 40
Globetrotter448 wrote:
The windscreen washers have their own pump. Check that the nozzles are not blocked by inserting a needle or straightened paper clip, then check that you do not have a kink in the feed pipe.
hi - i'm struggling for too long now with my windscreen washers ... replaced the front/headlamp pump, the nozzles, the valves, but it's still with barely any fluid coming out. i'm now of the opinion that there is a kink somewhere in the feed pipe to the windscreen, but it seems that the water pipe runs in the same loom as the electrical wires. it's hard to think that the kink would be somehow in the loom, but i also don't see it anywhere else.
the rear window washer - which i know has it's own pump and line - works absolutely as expected.
i see a number of comments on cleaning plugged up parts, all of which i have done - but do not seem to find anyone commenting on a kinked pipe. i would be grateful if any experience can be shared please.
20th Sep 2024 2:54 pm
G7jtk
Member Since: 03 Jun 2014
Location: Prudhoe
Posts: 860
Change them for jets with a fan pattern. Way better
Last edited by G7jtk on 22nd Sep 2024 12:32 pm. Edited 2 times in total
20th Sep 2024 10:42 pm
gvmnt
Member Since: 06 May 2007
Location: Cambridge
Posts: 40
G7jtk wrote:
Chand them for jets with a fam pattern. Way better
any suggestions on where i can get the fan pattern? part number, etc? many thanks
22nd Sep 2024 11:20 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14089
Know when I upgraded my d3 windscreen washer to heated d4 ones I disconnected the pipes both ends from the washer bottle and at the windscreen area and put an air line through it
Full of junk and sorted it out , those none return valves can also block up
Sorry that’s not much help but others can recommend the fan pattern jets for u
22nd Sep 2024 11:53 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10663
Is the one way valve in the bonnet ? right next to the jets ?
22nd Sep 2024 12:13 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14089
Yes mate , one NRV on each jet , this was before I added the heated D4 jets
Click image to enlarge
Click image to enlarge
22nd Sep 2024 12:28 pm
G7jtk
Member Since: 03 Jun 2014
Location: Prudhoe
Posts: 860
gvmnt wrote:
G7jtk wrote:
Chand them for jets with a fam pattern. Way better
any suggestions on where i can get the fan pattern? part number, etc? many thanks
These are what I fitted. Had to make wedge shims up to hit the windscreen and lost the heater elements.
They work way better than the originals but could be better.
Last edited by G7jtk on 22nd Sep 2024 2:56 pm. Edited 1 time in total
22nd Sep 2024 12:31 pm
gvmnt
Member Since: 06 May 2007
Location: Cambridge
Posts: 40
gstuart wrote:
Know when I upgraded my d3 windscreen washer to heated d4 ones I disconnected the pipes both ends from the washer bottle and at the windscreen area and put an air line through it
Full of junk and sorted it out , those none return valves can also block up
Sorry that’s not much help but others can recommend the fan pattern jets for u
yeah - i don't have an air supply so tried to do the same with the bicycle pump and the beach ball nozzle. there is definitely much more resistance in the water line than i feel there should be. the bicycle pump does go up to 60psi and let's air through but not enough "volume flow" to push through what might be there. at my wits end
22nd Sep 2024 12:35 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 14089
Have u tried it by pulling the NRV’s under the bonnet off plse to see if the pipe is clear
Then blowing through each non return valve to ensure there also clear as when I done mine they had junk inside
Along with ensuring the jets are clear, I just got some spare hose to attach it, or other way to use a nozzle fitting on the end of ur hand pipe
Hope that helps
22nd Sep 2024 12:39 pm
gvmnt
Member Since: 06 May 2007
Location: Cambridge
Posts: 40
thanks for the pointers. played with the vehicle today once again ... it does all point to a pinch / kink somewhere in the feed-pipe/water-line to the windscreen ... i bypassed it with a hose and everything worked like magic ... so at least i know where the culprit sits.
any suggestions for where the factory hose runs? it goes into a wiring loom pretty soon above the windscreen pump and i lose sight of it until it comes out at the corner of the bonnet. i suspect most of it goes behind the fender / wheel arch. might need to accept the bypass solution as the permanent one
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