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<!-- google_ad_section_start -->flush out dead /clogged screenwash pump /tank ( Focus TDCi)<!-- google_ad_section_end -->
flush out dead /clogged screenwash pump /tank ( Focus TDCi)
general advice + tips ( FORD Specifics)
Published by varesecrazy
01-02-2015
Difficulty Level: 2

User Rated:Unrated

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Basics - removal

[BREAK=removing tank - awkward]Removing fluid from tank,
then lift tank from car.

NOT technical.. just time consuming

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reservoir/tank + pump are generally located in the inner wing area.

before removing tank check pump doesn't make ANY sound..,
check fuses..!!

I removed the under bonnet liner, and unplugged the rubber supply hose, and tried BLOWING down the hose ( there MAY be a non-return valve stopping this)

I DO NOT recommend sucking.. as it can be pretty foul stuff
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safely jack-up car, remove road wheel for better access.

on the focus , I used a T30 Torx key to remove inner wing plastic retaining clips, then wriggled plastic liner free.

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once liner is off you SHOULD be able to see SOME of the rubber supply hose(es) - front and REAR screen often share the 1 pump.

I pulled apart one of the hose couplers, and let the system drain into a filtered container ( a bowl is fine.. as you can filter the fluid on re-installing)




[BREAK=New Page]

once as much fluid has drained as possible,
try and dislodge the pump ( lower tubing), as this will cut down the weight unsupported when unbolting the tank.

unbolt all supporting bolts / screws,
there MAY be a "hook" into the chassis too ( was on Focus)

once free - carefully lower - as there may be hoses + pump wiring to deal with

planning ahead and having a means of supporting the tank at a mid-height is good here

once all is clear move tank away from car and tip last few trapped parts of fluid into your catch tray / bowl

[BREAK=half-way..!!]

remove the pump , and it's rubber seal,
wash out tank with clean water,


try plugging 1 end and shaking to get out little bits of crud.

on the FORD there is a "mesh /grille" cast into the rubber seal, it was SOLID with blue gunge from the screenwash ( common issue)

so pump was BONE DRY

this meant pump wouldn't run needless to say this was discovered when the local FORD garage was shut

so a strip down of the pump ensued

[BREAK=PUMP -basics]

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I've used a funnel and proper filter screen for the crud-catching, but pouring through an OLD tee shirt would do the job


ince all clean,
reassemble grommet / seal into tank and twist pumpback into place,
re-wire the loom into place, then offer tank into car, connecting tubes as they will reack,
loosely hang tank onto car and put a little NEAT WATER into the tank, then test the pump..,
( A LOT Less work if you've made a mistake t this point)
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Old 01-02-2015   #1
Join Date: Apr 2011
Location: Near the M4
Posts: 29,265
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Re: flush out dead /clogged screenwash pump /tank ( Focus TDCi)

PUMP.

I found the pump to be dead..,
so nothing ventured,

put 12 Volts across the 2 x terminals.. Nothing

sprayed release oil into the pump chambers

left to soak , then eased off the motor from the pump ( plastic shroud around cable connector clips on)
once this was removed - it's a simple motor with a drive flat on the shaft,
that locates with the pump impeller.

motor ran well on 12V supply, ( car battery)
so reassembled - connected to cars loom,

and ran briefly..,
then stopped dead,

obviously still tight..so more lube and manipulating, and it then pumped fluid reliably

then started to reassemble into cars inner wing,
"hanging on hook" was fiddly, as it needed to coincide with aligning the "filler neck tube" with the upper grommet of the tank


once convinced it was together I offered the mounting bolts finger tight, reconnected the last of the hose unions ( thankfully the front / rear hoses cannot be joined wrongly ; male to male , F to F)

re-threaded the top supply hose under bonnets heat blanket, attached to nozzle stub, and tested.. all worked fine so tucked heat blanket back into it's mount points, and added more screen was..,

LEAK TIGHT..

not only that but passed the MOT a few days later

took 2 to 3 hours of tinkering ( in January), but could've saved @ 100 in garage fees

have fun,
feel free to add tips for FIAT models,
the FOCUS was a 58 plate - so Mk 2..??mk 1 is in other wing.

couldn't see ANY guides on the Web - so here is my own one.
Charlie - Oxford
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Old 09-02-2021   #2
Join Date: Apr 2011
Location: Near the M4
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More relevant..

Here is the accessible tank and pump on a 2006+ punto 199 series

Tucked under left wheel arch
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